Cyclin D1
Cyclin A
Cyclin E
Cyclin B
Cyclin B1
Cyclin D2
Cyclin D3
Cyclin A1
Cyclin A2
Cyclin D
Cyclin G1
Cyclin G
Cyclins
Cyclin C
Cyclin-Dependent Kinases
Cyclin B2
Cyclin T
Cyclin-Dependent Kinase 2
Cyclin G2
Cyclin H
Cell Cycle
The complex series of phenomena, occurring between the end of one CELL DIVISION and the end of the next, by which cellular material is duplicated and then divided between two daughter cells. The cell cycle includes INTERPHASE, which includes G0 PHASE; G1 PHASE; S PHASE; and G2 PHASE, and CELL DIVISION PHASE.
Cyclin-Dependent Kinase 4
CDC2-CDC28 Kinases
CDC2 Protein Kinase
Phosphoprotein with protein kinase activity that functions in the G2/M phase transition of the CELL CYCLE. It is the catalytic subunit of the MATURATION-PROMOTING FACTOR and complexes with both CYCLIN A and CYCLIN B in mammalian cells. The maximal activity of cyclin-dependent kinase 1 is achieved when it is fully dephosphorylated.
G1 Phase
Cell Cycle Proteins
Proteins that control the CELL DIVISION CYCLE. This family of proteins includes a wide variety of classes, including CYCLIN-DEPENDENT KINASES, mitogen-activated kinases, CYCLINS, and PHOSPHOPROTEIN PHOSPHATASES as well as their putative substrates such as chromatin-associated proteins, CYTOSKELETAL PROTEINS, and TRANSCRIPTION FACTORS.
Cyclin-Dependent Kinase Inhibitor p27
A cyclin-dependent kinase inhibitor that coordinates the activation of CYCLIN and CYCLIN-DEPENDENT KINASES during the CELL CYCLE. It interacts with active CYCLIN D complexed to CYCLIN-DEPENDENT KINASE 4 in proliferating cells, while in arrested cells it binds and inhibits CYCLIN E complexed to CYCLIN-DEPENDENT KINASE 2.
S Phase
Retinoblastoma Protein
Product of the retinoblastoma tumor suppressor gene. It is a nuclear phosphoprotein hypothesized to normally act as an inhibitor of cell proliferation. Rb protein is absent in retinoblastoma cell lines. It also has been shown to form complexes with the adenovirus E1A protein, the SV40 T antigen, and the human papilloma virus E7 protein.
Cyclin I
Mitosis
Oncogene Proteins
Genes, bcl-1
Protein-Serine-Threonine Kinases
Cyclin-Dependent Kinase 6
Phosphorylation
Cyclin-Dependent Kinase Inhibitor p21
Cell Division
G2 Phase
Tumor Suppressor Proteins
RNA, Messenger
RNA sequences that serve as templates for protein synthesis. Bacterial mRNAs are generally primary transcripts in that they do not require post-transcriptional processing. Eukaryotic mRNA is synthesized in the nucleus and must be exported to the cytoplasm for translation. Most eukaryotic mRNAs have a sequence of polyadenylic acid at the 3' end, referred to as the poly(A) tail. The function of this tail is not known for certain, but it may play a role in the export of mature mRNA from the nucleus as well as in helping stabilize some mRNA molecules by retarding their degradation in the cytoplasm.
E2F Transcription Factors
A family of basic helix-loop-helix transcription factors that control expression of a variety of GENES involved in CELL CYCLE regulation. E2F transcription factors typically form heterodimeric complexes with TRANSCRIPTION FACTOR DP1 or transcription factor DP2, and they have N-terminal DNA binding and dimerization domains. E2F transcription factors can act as mediators of transcriptional repression or transcriptional activation.
cdc25 Phosphatases
Molecular Sequence Data
Descriptions of specific amino acid, carbohydrate, or nucleotide sequences which have appeared in the published literature and/or are deposited in and maintained by databanks such as GENBANK, European Molecular Biology Laboratory (EMBL), National Biomedical Research Foundation (NBRF), or other sequence repositories.
Proto-Oncogene Proteins
Cell Nucleus
Within a eukaryotic cell, a membrane-limited body which contains chromosomes and one or more nucleoli (CELL NUCLEOLUS). The nuclear membrane consists of a double unit-type membrane which is perforated by a number of pores; the outermost membrane is continuous with the ENDOPLASMIC RETICULUM. A cell may contain more than one nucleus. (From Singleton & Sainsbury, Dictionary of Microbiology and Molecular Biology, 2d ed)
Tumor Cells, Cultured
Microtubule-Associated Proteins
Gene Expression Regulation, Neoplastic
Proliferating Cell Nuclear Antigen
Nuclear antigen with a role in DNA synthesis, DNA repair, and cell cycle progression. PCNA is required for the coordinated synthesis of both leading and lagging strands at the replication fork during DNA replication. PCNA expression correlates with the proliferation activity of several malignant and non-malignant cell types.
F-Box Proteins
A family of proteins that share the F-BOX MOTIF and are involved in protein-protein interactions. They play an important role in process of protein ubiquition by associating with a variety of substrates and then associating into SCF UBIQUITIN LIGASE complexes. They are held in the ubiquitin-ligase complex via binding to SKP DOMAIN PROTEINS.
Protamine Kinase
Protein Binding
Blotting, Western
Maturation-Promoting Factor
Protein kinase that drives both the mitotic and meiotic cycles in all eukaryotic organisms. In meiosis it induces immature oocytes to undergo meiotic maturation. In mitosis it has a role in the G2/M phase transition. Once activated by CYCLINS; MPF directly phosphorylates some of the proteins involved in nuclear envelope breakdown, chromosome condensation, spindle assembly, and the degradation of cyclins. The catalytic subunit of MPF is PROTEIN P34CDC2.
Down-Regulation
Immunohistochemistry
Transcription Factors
Transfection
Promoter Regions, Genetic
Cyclin-Dependent Kinase Inhibitor p16
A product of the p16 tumor suppressor gene (GENES, P16). It is also called INK4 or INK4A because it is the prototype member of the INK4 CYCLIN-DEPENDENT KINASE INHIBITORS. This protein is produced from the alpha mRNA transcript of the p16 gene. The other gene product, produced from the alternatively spliced beta transcript, is TUMOR SUPPRESSOR PROTEIN P14ARF. Both p16 gene products have tumor suppressor functions.
Nuclear Proteins
Gene Expression Regulation
Transcription Factor DP1
Apoptosis
One of the mechanisms by which CELL DEATH occurs (compare with NECROSIS and AUTOPHAGOCYTOSIS). Apoptosis is the mechanism responsible for the physiological deletion of cells and appears to be intrinsically programmed. It is characterized by distinctive morphologic changes in the nucleus and cytoplasm, chromatin cleavage at regularly spaced sites, and the endonucleolytic cleavage of genomic DNA; (DNA FRAGMENTATION); at internucleosomal sites. This mode of cell death serves as a balance to mitosis in regulating the size of animal tissues and in mediating pathologic processes associated with tumor growth.
Cyclin-Dependent Kinase 9
HeLa Cells
Signal Transduction
The intracellular transfer of information (biological activation/inhibition) through a signal pathway. In each signal transduction system, an activation/inhibition signal from a biologically active molecule (hormone, neurotransmitter) is mediated via the coupling of a receptor/enzyme to a second messenger system or to an ion channel. Signal transduction plays an important role in activating cellular functions, cell differentiation, and cell proliferation. Examples of signal transduction systems are the GAMMA-AMINOBUTYRIC ACID-postsynaptic receptor-calcium ion channel system, the receptor-mediated T-cell activation pathway, and the receptor-mediated activation of phospholipases. Those coupled to membrane depolarization or intracellular release of calcium include the receptor-mediated activation of cytotoxic functions in granulocytes and the synaptic potentiation of protein kinase activation. Some signal transduction pathways may be part of larger signal transduction pathways; for example, protein kinase activation is part of the platelet activation signal pathway.
3T3 Cells
Cell lines whose original growing procedure consisted being transferred (T) every 3 days and plated at 300,000 cells per plate (J Cell Biol 17:299-313, 1963). Lines have been developed using several different strains of mice. Tissues are usually fibroblasts derived from mouse embryos but other types and sources have been developed as well. The 3T3 lines are valuable in vitro host systems for oncogenic virus transformation studies, since 3T3 cells possess a high sensitivity to CONTACT INHIBITION.
Retinoblastoma-Binding Protein 1
Tumor Suppressor Protein p53
Transcription, Genetic
E2F1 Transcription Factor
DNA-Binding Proteins
Retinoblastoma-Like Protein p107
A negative regulator of the CELL CYCLE that undergoes PHOSPHORYLATION by CYCLIN-DEPENDENT KINASES. It contains a conserved pocket region that binds E2F4 TRANSCRIPTION FACTOR and interacts with viral ONCOPROTEINS such as POLYOMAVIRUS TUMOR ANTIGENS; ADENOVIRUS E1A PROTEINS; and PAPILLOMAVIRUS E7 PROTEINS.
Amino Acid Sequence
Base Sequence
Cells, Cultured
Protein Kinases
Ubiquitin-Protein Ligase Complexes
Complexes of enzymes that catalyze the covalent attachment of UBIQUITIN to other proteins by forming a peptide bond between the C-terminal GLYCINE of UBIQUITIN and the alpha-amino groups of LYSINE residues in the protein. The complexes play an important role in mediating the selective-degradation of short-lived and abnormal proteins. The complex of enzymes can be broken down into three components that involve activation of ubiquitin (UBIQUITIN-ACTIVATING ENZYMES), conjugation of ubiquitin to the ligase complex (UBIQUITIN-CONJUGATING ENZYMES), and ligation of ubiquitin to the substrate protein (UBIQUITIN-PROTEIN LIGASES).
Mutation
Recombinant Fusion Proteins
CDC28 Protein Kinase, S cerevisiae
S-Phase Kinase-Associated Proteins
A family of structurally-related proteins that were originally identified by their ability to complex with cyclin proteins (CYCLINS). They share a common domain that binds specifically to F-BOX MOTIFS. They take part in SKP CULLIN F-BOX PROTEIN LIGASES, where they can bind to a variety of F-BOX PROTEINS.
Enzyme Activation
Cyclin-Dependent Kinase Inhibitor Proteins
RNA, Small Interfering
Small double-stranded, non-protein coding RNAs (21-31 nucleotides) involved in GENE SILENCING functions, especially RNA INTERFERENCE (RNAi). Endogenously, siRNAs are generated from dsRNAs (RNA, DOUBLE-STRANDED) by the same ribonuclease, Dicer, that generates miRNAs (MICRORNAS). The perfect match of the siRNAs' antisense strand to their target RNAs mediates RNAi by siRNA-guided RNA cleavage. siRNAs fall into different classes including trans-acting siRNA (tasiRNA), repeat-associated RNA (rasiRNA), small-scan RNA (scnRNA), and Piwi protein-interacting RNA (piRNA) and have different specific gene silencing functions.
Enzyme Inhibitors
Oocytes
Lymphoma, Mantle-Cell
A form of non-Hodgkin lymphoma having a usually diffuse pattern with both small and medium lymphocytes and small cleaved cells. It accounts for about 5% of adult non-Hodgkin lymphomas in the United States and Europe. The majority of mantle-cell lymphomas are associated with a t(11;14) translocation resulting in overexpression of the CYCLIN D1 gene (GENES, BCL-1).
Ki-67 Antigen
NIH 3T3 Cells
A continuous cell line of high contact-inhibition established from NIH Swiss mouse embryo cultures. The cells are useful for DNA transfection and transformation studies. (From ATCC [Internet]. Virginia: American Type Culture Collection; c2002 [cited 2002 Sept 26]. Available from http://www.atcc.org/)
Fibroblasts
Reverse Transcriptase Polymerase Chain Reaction
Flow Cytometry
Technique using an instrument system for making, processing, and displaying one or more measurements on individual cells obtained from a cell suspension. Cells are usually stained with one or more fluorescent dyes specific to cell components of interest, e.g., DNA, and fluorescence of each cell is measured as it rapidly transverses the excitation beam (laser or mercury arc lamp). Fluorescence provides a quantitative measure of various biochemical and biophysical properties of the cell, as well as a basis for cell sorting. Other measurable optical parameters include light absorption and light scattering, the latter being applicable to the measurement of cell size, shape, density, granularity, and stain uptake.
Meiosis
Xenopus Proteins
Cell Transformation, Neoplastic
Proto-Oncogene Proteins c-myc
Xenopus
Cyclin-Dependent Kinase 8
Precipitin Tests
Proteasome Endopeptidase Complex
A large multisubunit complex that plays an important role in the degradation of most of the cytosolic and nuclear proteins in eukaryotic cells. It contains a 700-kDa catalytic sub-complex and two 700-kDa regulatory sub-complexes. The complex digests ubiquitinated proteins and protein activated via ornithine decarboxylase antizyme.
Gene Expression
Cdh1 Proteins
Cyclin-Dependent Kinase 3
Carrier Proteins
Proto-Oncogene Proteins c-mos
beta Catenin
A multi-functional catenin that participates in CELL ADHESION and nuclear signaling. Beta catenin binds CADHERINS and helps link their cytoplasmic tails to the ACTIN in the CYTOSKELETON via ALPHA CATENIN. It also serves as a transcriptional co-activator and downstream component of WNT PROTEIN-mediated SIGNAL TRANSDUCTION PATHWAYS.
Immunoblotting
Models, Biological
Interphase
Threonine
Cell Cycle Checkpoints
Regulatory signaling systems that control the progression through the CELL CYCLE. They ensure that the cell has completed, in the correct order and without mistakes, all the processes required to replicate the GENOME and CYTOPLASM, and divide them equally between two daughter cells. If cells sense they have not completed these processes or that the environment does not have the nutrients and growth hormones in place to proceed, then the cells are restrained (or "arrested") until the processes are completed and growth conditions are suitable.
Up-Regulation
DNA Primers
Metaphase
Glycogen Synthase Kinase 3
RNA Interference
A gene silencing phenomenon whereby specific dsRNAs (RNA, DOUBLE-STRANDED) trigger the degradation of homologous mRNA (RNA, MESSENGER). The specific dsRNAs are processed into SMALL INTERFERING RNA (siRNA) which serves as a guide for cleavage of the homologous mRNA in the RNA-INDUCED SILENCING COMPLEX. DNA METHYLATION may also be triggered during this process.
Neoplasm Proteins
Proteins whose abnormal expression (gain or loss) are associated with the development, growth, or progression of NEOPLASMS. Some neoplasm proteins are tumor antigens (ANTIGENS, NEOPLASM), i.e. they induce an immune reaction to their tumor. Many neoplasm proteins have been characterized and are used as tumor markers (BIOMARKERS, TUMOR) when they are detectable in cells and body fluids as monitors for the presence or growth of tumors. Abnormal expression of ONCOGENE PROTEINS is involved in neoplastic transformation, whereas the loss of expression of TUMOR SUPPRESSOR PROTEINS is involved with the loss of growth control and progression of the neoplasm.
E2F4 Transcription Factor
Ubiquitins
Positive Transcriptional Elongation Factor B
Centrosome
The cell center, consisting of a pair of CENTRIOLES surrounded by a cloud of amorphous material called the pericentriolar region. During interphase, the centrosome nucleates microtubule outgrowth. The centrosome duplicates and, during mitosis, separates to form the two poles of the mitotic spindle (MITOTIC SPINDLE APPARATUS).
Anaphase
Trans-Activators
Transcriptional Activation
DNA
A deoxyribonucleotide polymer that is the primary genetic material of all cells. Eukaryotic and prokaryotic organisms normally contain DNA in a double-stranded state, yet several important biological processes transiently involve single-stranded regions. DNA, which consists of a polysugar-phosphate backbone possessing projections of purines (adenine and guanine) and pyrimidines (thymine and cytosine), forms a double helix that is held together by hydrogen bonds between these purines and pyrimidines (adenine to thymine and guanine to cytosine).
Cytoplasm
SKP Cullin F-Box Protein Ligases
Cell Differentiation
Purines
Tumor Markers, Biological
Molecular products metabolized and secreted by neoplastic tissue and characterized biochemically in cells or body fluids. They are indicators of tumor stage and grade as well as useful for monitoring responses to treatment and predicting recurrence. Many chemical groups are represented including hormones, antigens, amino and nucleic acids, enzymes, polyamines, and specific cell membrane proteins and lipids.
Ubiquitin-Protein Ligases
A diverse class of enzymes that interact with UBIQUITIN-CONJUGATING ENZYMES and ubiquitination-specific protein substrates. Each member of this enzyme group has its own distinct specificity for a substrate and ubiquitin-conjugating enzyme. Ubiquitin-protein ligases exist as both monomeric proteins multiprotein complexes.
Immunoprecipitation
Securin
Securin is involved in the control of the metaphase-anaphase transition during MITOSIS. It promotes the onset of anaphase by blocking SEPARASE function and preventing proteolysis of cohesin and separation of sister CHROMATIDS. Overexpression of securin is associated with NEOPLASTIC CELL TRANSFORMATION and tumor formation.
Cyclin-Dependent Kinase Inhibitor p18
Mice, Transgenic
Binding Sites
Nocodazole
Cyclin-Dependent Kinase Inhibitor p57
Retinoblastoma-Like Protein p130
A negative regulator of the CELL CYCLE that undergoes PHOSPHORYLATION by CYCLIN-DEPENDENT KINASES. RBL2 contains a conserved pocket region that binds E2F4 TRANSCRIPTION FACTOR and E2F5 TRANSCRIPTION FACTOR. RBL2 also interacts with viral ONCOPROTEINS such as POLYOMAVIRUS TUMOR ANTIGENS; ADENOVIRUS E1A PROTEINS; and PAPILLOMAVIRUS E7 PROTEINS.
Luciferases
Protein Processing, Post-Translational
Any of various enzymatically catalyzed post-translational modifications of PEPTIDES or PROTEINS in the cell of origin. These modifications include carboxylation; HYDROXYLATION; ACETYLATION; PHOSPHORYLATION; METHYLATION; GLYCOSYLATION; ubiquitination; oxidation; proteolysis; and crosslinking and result in changes in molecular weight and electrophoretic motility.
Saccharomyces cerevisiae Proteins
Active Transport, Cell Nucleus
Cyclin-Dependent Kinase Inhibitor p19
Spindle Apparatus
Bromodeoxyuridine
Repressor Proteins
Chromosomes, Human, Pair 11
Drosophila Proteins
Xenopus laevis
Phosphothreonine
Mice, Knockout
Strains of mice in which certain GENES of their GENOMES have been disrupted, or "knocked-out". To produce knockouts, using RECOMBINANT DNA technology, the normal DNA sequence of the gene being studied is altered to prevent synthesis of a normal gene product. Cloned cells in which this DNA alteration is successful are then injected into mouse EMBRYOS to produce chimeric mice. The chimeric mice are then bred to yield a strain in which all the cells of the mouse contain the disrupted gene. Knockout mice are used as EXPERIMENTAL ANIMAL MODELS for diseases (DISEASE MODELS, ANIMAL) and to clarify the functions of the genes.
Epithelial Cells
Cells that line the inner and outer surfaces of the body by forming cellular layers (EPITHELIUM) or masses. Epithelial cells lining the SKIN; the MOUTH; the NOSE; and the ANAL CANAL derive from ectoderm; those lining the RESPIRATORY SYSTEM and the DIGESTIVE SYSTEM derive from endoderm; others (CARDIOVASCULAR SYSTEM and LYMPHATIC SYSTEM) derive from mesoderm. Epithelial cells can be classified mainly by cell shape and function into squamous, glandular and transitional epithelial cells.
Gene Expression Regulation, Developmental
Carcinoma, Squamous Cell
Cdc20 Proteins
Highly conserved proteins that specifically bind to and activate the anaphase-promoting complex-cyclosome, promoting ubiquitination and proteolysis of cell-cycle-regulatory proteins. Cdc20 is essential for anaphase-promoting complex activity, initiation of anaphase, and cyclin proteolysis during mitosis.
Microscopy, Fluorescence
Serine
G1 Phase Cell Cycle Checkpoints
Regulatory signaling systems that control the progression of the CELL CYCLE through the G1 PHASE and allow transition to S PHASE when the cells are ready to undergo DNA REPLICATION. DNA DAMAGE, or the deficiencies in specific cellular components or nutrients may cause the cells to halt before progressing through G1 phase.
Genes, myc
Family of retrovirus-associated DNA sequences (myc) originally isolated from an avian myelocytomatosis virus. The proto-oncogene myc (c-myc) codes for a nuclear protein which is involved in nucleic acid metabolism and in mediating the cellular response to growth factors. Truncation of the first exon, which appears to regulate c-myc expression, is crucial for tumorigenicity. The human c-myc gene is located at 8q24 on the long arm of chromosome 8.
Sequence Homology, Amino Acid
Blotting, Northern
DNA, Complementary
Proto-Oncogene Proteins c-akt
Embryo, Nonmammalian
Mice, Nude
Genes, cdc
Two-Hybrid System Techniques
Screening techniques first developed in yeast to identify genes encoding interacting proteins. Variations are used to evaluate interplay between proteins and other molecules. Two-hybrid techniques refer to analysis for protein-protein interactions, one-hybrid for DNA-protein interactions, three-hybrid interactions for RNA-protein interactions or ligand-based interactions. Reverse n-hybrid techniques refer to analysis for mutations or other small molecules that dissociate known interactions.
Prometaphase
DNA Damage
Injuries to DNA that introduce deviations from its normal, intact structure and which may, if left unrepaired, result in a MUTATION or a block of DNA REPLICATION. These deviations may be caused by physical or chemical agents and occur by natural or unnatural, introduced circumstances. They include the introduction of illegitimate bases during replication or by deamination or other modification of bases; the loss of a base from the DNA backbone leaving an abasic site; single-strand breaks; double strand breaks; and intrastrand (PYRIMIDINE DIMERS) or interstrand crosslinking. Damage can often be repaired (DNA REPAIR). If the damage is extensive, it can induce APOPTOSIS.
Protein Structure, Tertiary
The level of protein structure in which combinations of secondary protein structures (alpha helices, beta sheets, loop regions, and motifs) pack together to form folded shapes called domains. Disulfide bridges between cysteines in two different parts of the polypeptide chain along with other interactions between the chains play a role in the formation and stabilization of tertiary structure. Small proteins usually consist of only one domain but larger proteins may contain a number of domains connected by segments of polypeptide chain which lack regular secondary structure.
Mitogen-Activated Protein Kinases
A superfamily of PROTEIN-SERINE-THREONINE KINASES that are activated by diverse stimuli via protein kinase cascades. They are the final components of the cascades, activated by phosphorylation by MITOGEN-ACTIVATED PROTEIN KINASE KINASES, which in turn are activated by mitogen-activated protein kinase kinase kinases (MAP KINASE KINASE KINASES).
Histones
Ubiquitin
A highly conserved 76-amino acid peptide universally found in eukaryotic cells that functions as a marker for intracellular PROTEIN TRANSPORT and degradation. Ubiquitin becomes activated through a series of complicated steps and forms an isopeptide bond to lysine residues of specific proteins within the cell. These "ubiquitinated" proteins can be recognized and degraded by proteosomes or be transported to specific compartments within the cell.
Prophase
Prognosis
Cyclin-Dependent Kinase 5
Genes, Reporter
Phosphatidylinositol 3-Kinases
Phosphotransferases that catalyzes the conversion of 1-phosphatidylinositol to 1-phosphatidylinositol 3-phosphate. Many members of this enzyme class are involved in RECEPTOR MEDIATED SIGNAL TRANSDUCTION and regulation of vesicular transport with the cell. Phosphatidylinositol 3-Kinases have been classified both according to their substrate specificity and their mode of action within the cell.
Cloning, Molecular
Proteolysis
Fluorescent Antibody Technique
Test for tissue antigen using either a direct method, by conjugation of antibody with fluorescent dye (FLUORESCENT ANTIBODY TECHNIQUE, DIRECT) or an indirect method, by formation of antigen-antibody complex which is then labeled with fluorescein-conjugated anti-immunoglobulin antibody (FLUORESCENT ANTIBODY TECHNIQUE, INDIRECT). The tissue is then examined by fluorescence microscopy.
p53-dependent G2 arrest associated with a decrease in cyclins A2 and B1 levels in a human carcinoma cell line. (1/89)
In vivo transfer of wild-type (wt) p53 gene via a recombinant adenovirus has been proposed to induce apoptosis and increase radiosensitivity in several human carcinoma models. In the context of combining p53 gene transfer and irradiation, we investigated the consequences of adenoviral-mediated wtp53 gene transfer on the cell cycle and radiosensitivity of a human head and neck squamous cell carcinoma line (SCC97) with a p53 mutated phenotype. We showed that ectopic expression of wtp53 in SCC97 cells resulted in a prolonged G1 arrest, associated with an increased expression of the cyclin-dependent kinase inhibitor WAF1/p21 target gene. A transient arrest in G2 but not in G1 was observed after irradiation. This G2 arrest was permanent when exponentially growing cells were transduced by Ad5CMV-p53 (RPR/INGN201) immediately after irradiation with 5 or 10 Gy. Moreover, levels of cyclins A2 and B1, which are known to regulate the G2/M transition, dramatically decreased as cells arrived in G2, whereas maximal levels of expression were observed in the absence of wtp53. In conclusion, adenoviral mediated transfer of wtp53 in irradiated SCC97 cells, which are mutated for p53, appeared to increase WAF1/p21 expression and decrease levels of the mitotic cyclins A2 and B1. These observations suggest that the G2 arrest resulted from a p53-dependent premature inactivation of the mitosis promoting factor. (+info)Membrane-anchored cyclin A2 triggers Cdc2 activation in Xenopus oocyte. (2/89)
In Xenopus oocyte, the formation of complexes between neosynthesized cyclins and Cdc2 contributes to Cdc2 kinase activation that triggers meiotic divisions. It has been proposed that cytoplasmic membranes could be involved in this process. To investigate this possibility, we have injected in the oocyte two undegradable human cyclin A2 mutants anchored to the endoplasmic reticulum (ER) membrane. They encode fusion proteins between the truncated cyclin A2-Delta152 and a viral or cellular ER-targeting domain. We show that both mutants are fully functional as mitotic cyclins when expressed in Xenopus oocytes, bind Cdc2 and activate M-phase promoting factor. (+info)Centrosome overduplication, increased ploidy and transformation in cells expressing endoplasmic reticulum-associated cyclin A2. (3/89)
Cyclin A2 is predominantly, but not exclusively, localized in the nucleus from G1/S transition onwards. It is degraded when cells enter mitosis after nuclear envelope breakdown. We previously showed that a fusion protein (S2A) between the hepatitis B virus (HBV) surface antigen protein and a non-degradable fragment of human cyclin A2 (Delta152) resides in the endoplasmic reticulum membranes, escapes degradation and transforms normal rat fibroblasts. The present study investigates whether cytoplasmic cyclin A2 may play a role in oncogenesis. We show that the sequestration of non-degradable cyclin A2-Delta152 by a cellular ER targeting domain (PRL-A2) leads to cell transformation when coexpressed with activated Ha-ras. REF52 cells constitutively expressing PRL-A2 are found to have a high incidence of multinucleate giant cells, polyploidy and abnormal centrosome numbers, giving rise to the nucleation of multipolar spindles. Injection of these cells into athymic nude mice causes tumors, even in the absence of a cooperating Ha-ras oncogene. These results demonstrate that, independently of any viral context, an intracellular redistribution of non-degradable cyclin A2 is capable of deregulating the normal cell cycle to the point where it promotes aneuploidy and cancer. (+info)Murine spermatogonial stem cells: targeted transgene expression and purification in an active state. (4/89)
A 400 bp fragment of the spermatogonia-specific Stra8 locus was sufficient to direct gene expression to the germinal stem cells in transgenic mice. A fractionation procedure was devised, based on immunomagnetic sorting of cells in which the promoter drives the expression of a surface functionally neutral protein tag. The purified cells expressed the known molecular markers of spermatogonia Rbm, cyclin A2 and EP-Cam, and the beta1- and alpha6-integrins characteristic of the stem cell fraction. A 700-fold enrichment in stem cells was determined by the ability of the purified fractions to re-establish spermatogenesis in germ cell-depleted recipient testes. (+info)Increased hepatic Forkhead Box M1B (FoxM1B) levels in old-aged mice stimulated liver regeneration through diminished p27Kip1 protein levels and increased Cdc25B expression. (5/89)
Recent liver regeneration studies indicate that maintaining hepatic Forkhead Box M1B (FoxM1B) expression in 12-month-old (old-aged) Transthyretin-FoxM1B transgenic mice increases hepatocyte proliferation and expression of cell cycle regulatory genes. Because these transgenic CD-1 mice maintain FoxM1B levels during the aging process, we conducted the current study to determine whether adenovirus delivery of the FoxM1B gene (AdFoxM1B) is sufficient to stimulate liver regeneration in old-aged Balb/c mice. Here we show that AdFoxM1B infection of old-aged mice caused a significant increase in FoxM1B expression, hepatocyte DNA replication, and mitosis following partial hepatectomy. This stimulation in hepatocyte S-phase progression was associated with diminished protein expression and perinuclear localization of cyclin-dependent kinase (Cdk) inhibitor p27(Kip1) (p27) protein following partial hepatectomy. In contrast, old-aged mice infected with control virus displayed high hepatocyte levels of p27 protein, which had been localized to the nucleus prior to S-phase. Furthermore, we found that restoring FoxM1B expression did not influence p27 mRNA levels, and this new finding implicates FoxM1B in regulation of p27 protein levels. Likewise, AdFoxM1B-infected regenerating livers displayed elevated S-phase levels of Cdk2 kinase activity compared with old-aged mice infected with control virus. Furthermore, restoring FoxM1B expression in old-aged mice caused elevated levels of Cyclin B1, Cyclin B2, Cdc25B, Cdk1, and p55CDC mRNA as well as stimulating Cdc25B nuclear localization during liver regeneration, all of which are required for mitosis. These studies indicated that an acute delivery of the FoxM1B gene in old-aged mice is sufficient to re-establish proliferation of regenerating hepatocytes, suggesting that FoxM1B can be used for therapeutic intervention to alleviate the reduction in cellular proliferation observed in the elderly. (+info)B-Myb overcomes a p107-mediated cell proliferation block by interacting with an N-terminal domain of p107. (6/89)
B-Myb is a cell-cycle regulated transcription factor which is implicated in cell proliferation and has an essential role in early embryonic development. In this study we examined the functions of B-Myb required to overcome G1 arrest in Saos-2 cells induced by the retinoblastoma-related p107 protein. Our results demonstrated that this activity was independent of B-Myb transactivation function, but correlated with its capacity to form an in vivo complex with p107. A large proportion of B-Myb formed complexes with p107 in cotransfected cells, however, B-Myb bound weakly to the related p130 protein and not at all to pRb. In contrast to the E2F transcription factors, which bind the p107 C-terminal pocket domain, B-Myb recognizes an N-terminal p107 region which overlaps the larger cyclin-binding domain. B-Myb and cyclin A2 formed mutually exclusive complexes with p107, and B-Myb enhanced the activity of co-transfected cyclin E kinase activity, implying that B-Myb affects the cell cycle by preventing sequestration of active cyclin/cdk2 complexes. This study defines a novel function of B-Myb and further suggests that the p107 N-terminus provides an interaction domain for transcription factors involved in cell cycle control. (+info)The cell cycle-regulated B-Myb transcription factor overcomes cyclin-dependent kinase inhibitory activity of p57(KIP2) by interacting with its cyclin-binding domain. (7/89)
The cell cycle-regulated B-Myb transcription factor is required for early embryonic development and is implicated in regulating cell growth and differentiation. In addition to its transcriptional regulatory properties, recent data indicate that B-Myb can release active cyclin/Cdk2 activity from the retinoblastoma-related p107 protein by directly interacting with the p107 N terminus. As this p107 domain has homology to the cyclin-binding domains of the p21(Waf1/Cip1) family of cyclin-dependent kinase inhibitors (CKIs), we investigated in this study whether B-Myb could also interact with these CKIs. No in vivo interaction was found with either p21(Waf1/Cip1) or p27(KIP1), however, binding to p57(KIP2) was readily detectable in both in vivo and in vitro assays. The B-Myb-interacting region of p57(KIP2) mapped to the cyclin-binding domain. Consistent with this, B-Myb competed with cyclin A2 for binding to p57(KIP2), resulting in release of active cyclin/Cdk2 kinase. Moreover, B-Myb partially overcame the ability of p57(KIP2) to induce G1 arrest in Saos-2 cells. Despite similarities with previous p107 studies, the B-Myb domains required for interaction with p57(KIP2) were quite different from those implicated for p107. Thus, it is evident that B-Myb may promote cell proliferation by a non-transcriptional mechanism that involves release of active cyclin/Cdk2 from p57(KIP2) as well as p107. (+info)Synchronization of interphase events depends neither on mitosis nor on cdk1. (8/89)
Human HT2-19 cells with a conditional cdk1 mutation stop dividing upon cdk1 inactivation and undergo multiple rounds of endoreplication. We show herein that major cell cycle events remain synchronized in these endoreplicating cells. DNA replication alternates with gap phases and cell cycle-specific cyclin E expression is maintained. Centrosomes duplicate in synchrony with chromosome replication, giving rise to polyploid cells with multiple centrosomes. Centrosome migration, a typical prophase event, also takes place in endoreplicating cells. The timing of these events is unaffected by cdk1 inactivation compared with normally dividing cells. Nuclear lamina breakdown, in contrast, previously shown to be dependent on cdk1, does not take place in endoreplicating HT2-19 cells. Moreover, breakdown of all other major components of the nuclear lamina, like the inner nuclear membrane proteins and nuclear pore complexes, seems also to depend on cdk1. Interestingly, the APC/C ubiquitin ligase is activated in these endoreplicating cells by fzr but not by fzy. The oscillations of interphase events are thus independent of cdk1 and of mitosis but may depend on APC/Cfzr activity. (+info)
Rex Rabbit Pieced Clip Scarf by Surell at Gilt
Rex For Sale | Rabbits | Breed Information | Omlet
Rex For Sale | Rabbits | Breed Information | Omlet
Are rex rabbits more prone to illness than others? [Archive] - Rabbits United Forum
Dani Hooded Rex Rabbit Fur Coat with Fox Fur Trim | Overland
Industrial Electrical Cable Assemblies H3CCS-6418G IDC CBL HHKC64S/AE64G/HHKC64S Pack of 25 topcoatpaintingmelbourne.com.au
Cyclin A2 - Beckman Coulter
BRUNOL5 / CELF5 antibody | acris-antibodies.com
10CM Cute Fluffy Heart Keychains Womens Pom Poms Faux Rex Rabbit Fur Key Chains Girl Bag Hang Car Key Ring Jewelry Accessories...
Ccna 640-802 cisco press - Original Docs Server
Ccna3 instructor lab manual pdf - Original Docs Server
Cyclin E2 promotes whole genome doubling in breast cancer | Garvan Institute of Medical Research
CCNA Course: Cisco Certified Network Associate (CCNA) course in London, Cisco CCNA course and certification is trained by Cisco...
Download Computer Based Trainer for CCNA 2.7.0 - Select Computer Based Trainer for CCNA Download Site
Duplicating chromosomes once each cell cycle produces sister chromatid pairs which - GLO1 inhibitors for neuropsychiatric
reduplication: Definition, Word Game Analysis
Plus it
CertExams.com CCNA Network Simulator. 2.0 - CertExams.com router simulator has the following features:
-Several lab...
Series No. 1 Questions for Certified Ethical hacking test. | Networking and facts
facts that you dont know about computer
croscarmellosenatrium (CCNa) - Kina Shandong Yulong Cellulose
Interactive Fly, Drosophila
No Jobs at Apple Bank Ccna in Us | Glassdoor
Five Tips For Acing Your Ccna Exam
CCNA1 (cyclin A1)
Ccna Switch Flashcards & Quizzes | Brainscape
Online Cisco Training Materials | CCNA Practice Tests | LearnCisco.net
CCC Workforce offers CCNA Training | The Institute for Human Services, Inc.
Download Whizlabs Cisco CCNA Exam (640-607) Simulator 4.0.0 Shareware
Plus it
Come and help with our vineyards and enjoy cultural exchange in Hettlingen, Switzerland
Anti-UBN1 antibody [UBN1G12] (ab50890) | Abcam
User Sergio - Server Fault
Cisco Icnd1 100 105 Dumps - Icnd1 100-105 Best Practice Exam - IDEA Health & Fitness Association
While doing a routing lab for CCNA... | [H]ard|Forum
Recombinant Human BRUNOL6 protein (ab163736) | Abcam
31 Days Before Your CCNA Security Exam: A Day-By-Day Review Guide for the IINS 210-260 Certification Exam | Pearson IT...
Certdeals | Ccna Routing And Switching Certification 200-125 100% Pass Without Exam
My CCNA Data Center certification experience
Ccna2 final exam answers Manual Descargar
Lettuce, Shredded (4×5#) - Kilmers Farm Market
No Rx Online Pharmacy - Order Diflucan 50 mg generic - Focus Training Services
activity 9
What is the Cisco CCNA Certification? - Best Value Schools
CCNA Security 640-554 Official Cert Guide Premium Edition eBook and Practice Test | InformIT
Tài liệu Network Associate chọn lọc - TaiLieu.VN
Number of comments
CCNA: Network Media Types > Twisted-Pair Cable | Cisco Press
Cisco CCNA and CCDA Offers | Global Knowledge
Konfigurere og sikre LAN (CCNA 2)
Chapter 20 | Shikkaku Translations
Chapter 20 | Shikkaku Translations
ITGB3BP
... has been shown to interact with: CD61, Cyclin A2, NFKB1, RXRA, RXRG, and THRA. GRCh38: Ensembl release 89: ... Ohtoshi A, Maeda T, Higashi H, Ashizawa S, Yamada M, Hatakeyama M (2000). "beta3-endonexin as a novel inhibitor of cyclin A- ... "beta3-endonexin as a novel inhibitor of cyclin A-associated kinase". Biochem. Biophys. Res. Commun. 267 (3): 947-52. doi: ...
Jun dimerization protein
... involves downregulation of cyclin-A2". Oncogene. 29 (47): 6245-56. doi:10.1038/onc.2010.355. PMC 3007677. PMID 20802531. Chiou ... JDP2 induces cell cycle arrest through cyclin D, p53, and cyclin A transcription, by increasing JUNB, JUND, and Fra2, and by ...
Jyotsna Dhawan
... represses cyclin A2 expression, and promotes myogenic differentiation". Proceedings of the National Academy of Sciences. 106 ( ... represses cyclin A2 expression, and promotes myogenic differentiation Soji Sebastian, Prethish Sreenivas, Ramkumar Sambasivan, ... epigenetic control of cellular quiescence by the tumor suppressor PRDM2/RIZ at a bivalent domain in the cyclin a gene, Nucleic ... epigenetic control of cellular quiescence by the tumor suppressor PRDM2/RIZ at a bivalent domain in the cyclin a gene". Nucleic ...
WTAP (gene)
2007). "Wilms' tumor 1-associating protein regulates G2/M transition through stabilization of cyclin A2 mRNA". Proc. Natl. Acad ...
CDC6
... has been shown to interact with ORC1L, ORC2L, Cyclin A2, PPP2R3B, MCM3, PPP2R3A, MCM7 and PSKH1. Cdc6, the family of ... Petersen, B O; Lukas J; Sørensen C S; Bartek J; Helin K (January 1999). "Phosphorylation of mammalian CDC6 by cyclin A/CDK2 ... The subcellular translocation of this protein during the cell cycle is regulated through its phosphorylation by cyclin- ... 1999). "Phosphorylation of mammalian CDC6 by cyclin A/CDK2 regulates its subcellular localization". EMBO J. 18 (2): 396-410. ...
Pyroptosis
In gastric cancer cells, presence of GSDMD can inhibit cyclin A2/CDK2 complexes, leading to cell cycle arrest and thus inhibit ...
SAMHD1
Retroviral restriction ability of SAMHD1 is regulated by phosphorylation, for this purpose SAMHD1 associates with the cyclin A2 ...
TMEM155
Cytogenetic band: 4q27 TMEM155 is neighbored by TMEM155 is neighbored on chromosome 4 by CCNA2, a gene encoding for cyclin A2, ...
Retinoblastoma-like protein 1
... has been shown to interact with: BEGAIN, BRCA1, BRF1, Cyclin A2, Cyclin-dependent kinase 2, E2F1 ... "Reversal of growth suppression by p107 via direct phosphorylation by cyclin D1/cyclin-dependent kinase 4". Molecular and ... Shanahan F, Seghezzi W, Parry D, Mahony D, Lees E (Feb 1999). "Cyclin E associates with BAF155 and BRG1, components of the ... Faha B, Ewen ME, Tsai LH, Livingston DM, Harlow E (Jan 1992). "Interaction between human cyclin A and adenovirus E1A-associated ...
G0 phase
... such as cyclin A2, cyclin B1, cyclin E2, and survivin, and upregulation of genes involved in the regulation of transcription ... Immunoprecipitation kinase assays revealed that cyclin C has Rb kinase activity. Furthermore, unlike cyclins D and E, cyclin ... Further observations revealed that levels of cyclin C mRNA are highest when human cells exit G0, suggesting that cyclin C may ... confirmed the suspicion that cyclin C promotes G0 exit as repression of endogenous cyclin C by RNAi in mammalian cells ...
Christian Bréchot
Delayed early embryonic lethality following disruption of the murine cyclin A2 gene. Nature Genetics. 1997, 15: 83-86. Barba, G ... Wang, J., Chenivesse, X., Heinglein, B., and Brechot, C. Hepatitis B virus integration in a cyclin A gene in hepatocellular ... in particular through the identification of human cyclin A at the genomic insertion site of HBV in an HCC. Bréchot directed ...
Cyclin A
Cyclin A2 is expressed in dividing somatic cells. Cyclin A, along with the other members of the cyclin family, regulates cell ... Cyclin A remains associated with CDK1 from late S into late G2 phase when it is replaced by cyclin B. Cyclin A/CDK1 is thought ... Cyclin A is the only cyclin that regulates multiple steps of the cell cycle. Cyclin A can regulate multiple cell cycle steps ... P21 is a CDK inhibitor that binds to several cyclin/CDK complexes, including cyclin A-CDK2/1 and cyclin D/CDK4, and blocks the ...
Cyclin-dependent kinase
In mammalian cells, CDK1, with its partners cyclin A2 and B1, alone can drive the cell cycle. Another one, CDK7, is involved ... CDK6; cyclin D1, cyclin D2, cyclin D3 CDK7; cyclin H CDK8; cyclin C CDK9; cyclin T1, cyclin T2a, cyclin T2b, cyclin K CDK10 ... cyclin A, cyclin B CDK2; cyclin A, cyclin E CDK3; cyclin C CDK4; cyclin D1, cyclin D2, cyclin D3 CDK5; CDK5R1, CDK5R2. See also ... Furthermore, cyclin binding determines the specificity of the cyclin-CDK complex for particular substrates. Cyclins can ...
G2 phase
However, cyclin A2/CDK complexes do not function strictly as activators of cyclin B1/CDK1 in G2, as CDK2 has been shown to be ... Downregulation of cyclin A2 in U2OS cells delays cyclin-B1/CDK1 activation by increasing Wee1 activity and lowering Plk1 and ... FoxM1 and B-Myb by upstream G1 and G1/S cyclin-CDK complexes. Increased levels of cyclin B1 cause rising levels of cyclin B1- ... Cyclin A2/CDK2 activity begins in early S phase and increases during G2. Cdc25B has been shown to dephosphorylate Tyr15 on CDK2 ...
Cyclin-dependent kinase 2
Gopinathan L, Tan SL, Padmakumar VC, Coppola V, Tessarollo L, Kaldis P (July 2014). "Loss of Cdk2 and cyclin A2 impairs cell ... Cyclin-dependent kinase 2 has been shown to interact with: BRCA1, CDK2AP1, CDKN1B CDKN3, CEBPA, Cyclin A1, Cyclin E1, Flap ... Likewise, abnormal expression of cyclin A2 is associated with chromosomal instability and tumor proliferation, while inhibition ... "Entrez Gene: CDK2 cyclin-dependent kinase 2". Echalier A, Endicott JA, Noble ME (March 2010). "Recent developments in cyclin- ...
Cyclin A2
The cyclin A2-CDK2 complex eventually phosphorylates E2F, turning off cyclin A2 transcription. E2F promotes cyclin A2 ... cyclin A1 is expressed during meiosis and embryogenesis while cyclin A2 is expressed in dividing somatic cells. Cyclin A2 ... Cyclin A2 is synthesized at the onset of S phase and localizes to the nucleus, where the cyclin A2-CDK2 complex is implicated ... Cyclin A2 has been shown to interact with: CDC6, E2F1, FEN1, ITGB3BP, RBL1, and SKP2. Cyclin A2 (Ccna2) is a key protein ...
Proliferating cell nuclear antigen
Annexin A2, CAF-1, CDC25C, CHTF18, Cyclin D1, Cyclin O, Cyclin-dependent kinase 4, Cyclin-dependent kinase inhibitor 1C, DNMT1 ... "Association of proliferating cell nuclear antigen with cyclin-dependent kinases and cyclins in normal and transformed human T ... Webb G, Parsons P, Chenevix-Trench G (1991). "Localization of the gene for human proliferating nuclear antigen/cyclin by in ... Matsuoka S, Yamaguchi M, Matsukage A (April 1994). "D-type cyclin-binding regions of proliferating cell nuclear antigen". J. ...
Intracranial aneurysm
... collagen type 1 A2, endothelial nitric oxide synthase, endothelin receptor A and cyclin dependent kinase inhibitor. Mutations ...
BEN domain
MAR-binding protein that down-regulates Cyclin D1 expression by recruiting HDAC1-mSin3A co-repressor complex at Cyclin D1 ... promoter locus; SMAR1 is the target of prostaglandin A2 (PGA2) induced growth arrest. NACC1, a novel member of the POZ/BTB (Pox ... "Tumor suppressor SMAR1 mediates cyclin D1 repression by recruitment of the SIN3/histone deacetylase 1 complex". Molecular and ...
Cyclin
... *A (A1, A2). *B (B1, B2, B3). *D (D1, D2, D3) ... cyclin D (Cdk4) cyclin E (Cdk2) cyclin E, A (Cdk2,1) cyclin A, ... cyclin E, A (Cdk2,1) cyclin A, B, B3 (Cdk1) H. sapiens cyclin D 1,2,3 (Cdk4, Cdk6) cyclin E (Cdk2) cyclin A (Cdk2, Cdk1) cyclin ... Cyclin A / CDK2 - active in S phase.. *Cyclin D / CDK4, Cyclin D / CDK6, and Cyclin E / CDK2 - regulates transition from G1 to ... G1 cyclins, G1/S cyclins, S cyclins, and M cyclins. This division is useful when talking about most cell cycles, but it is not ...
Cyclin-dependent kinase 4
Cyclin. *A (A1, A2). *B (B1, B2, B3). *D (D1, D2, D3) ... CDK4, CMM3, PSK-J3, cyclin-dependent kinase 4, cyclin dependent ... cyclin-dependent protein serine/threonine kinase regulator activity. • protein binding. • ATP binding. • cyclin binding. • ... Component of the ternary complex, cyclin D/CDK4/CDKN1B, required for nuclear translocation and activity of the cyclin D-CDK4 ... 1993). "Direct binding of cyclin D to the retinoblastoma gene product (pRb) and pRb phosphorylation by the cyclin D-dependent ...
Cyclin-dependent kinase 8
Cyclin. *A (A1, A2). *B (B1, B2, B3). *D (D1, D2, D3) ... CDK8, K35, cyclin-dependent kinase 8, cyclin dependent kinase 8 ... Rickert P, Corden JL, Lees E (Jan 1999). "Cyclin C/CDK8 and cyclin H/CDK7/p36 are biochemically distinct CTD kinases". Oncogene ... The protein encoded by this gene is a member of the cyclin-dependent protein kinase (CDK) family. CDK8 and cyclin C associate ... "Entrez Gene: CDK8 cyclin-dependent kinase 8".. *^ Nemet J, Jelicic B, Rubelj I, Sopta M (Feb 2014). "The two faces of Cdk8, a ...
Granulin
Hoque M, Young TM, Lee CG, Serrero G, Mathews MB, Pe'ery T (March 2003). "The growth factor granulin interacts with cyclin T1 ... Other studies have suggested tumor necrosis factor and EPH receptor A2 as potential progranulin facilitators. After binding to ... Progranulin can promote cyclin D1 expression in breast cancer lines and phosphorylation of proteins through extracellular ... Granulin has also been shown to interact with Cyclin T1 and TRIB3. Although progranulin expression increases as cells mature, ...
p21
Cyclin. *A (A1, A2). *B (B1, B2, B3). *D (D1, D2, D3) ... cyclin-dependent kinase inhibitor 1A, cyclin dependent kinase ... cyclin binding. • cyclin-dependent protein kinase activating kinase activity. • cyclin-dependent protein serine/threonine ... p21Cip1 (alternatively p21Waf1), also known as cyclin-dependent kinase inhibitor 1 or CDK-interacting protein 1, is a cyclin- ... "Entrez Gene: CDKN1A cyclin-dependent kinase inhibitor 1A (p21, Cip1)".. *^ Gartel AL, Radhakrishnan SK (May 2005). "Lost in ...
Apoptosis
Cyclin. *A (A1, A2). *B (B1, B2, B3). *D (D1, D2, D3) ...
Replication protein A2
RPA2 has been shown to interact with: Cyclin O, DNA-PKcs, Ku70, MEN1, RPA3, Replication protein A1, STAT3, TP53BP1 and Uracil- ... "Entrez Gene: RPA2 Replication protein A2, 32kDa". Otterlei M, Warbrick E, Nagelhus TA, Haug T, Slupphaug G, Akbari M, Aas PA, ...
List of MeSH codes (D12.776)
... cyclin-dependent kinase inhibitor p27 MeSH D12.776.624.776.355.700 - cyclin-dependent kinase inhibitor p57 See List of MeSH ... MeSH D12.776.070.400.200.100 - apolipoprotein A1 MeSH D12.776.070.400.200.150 - apolipoprotein A2 See List of MeSH codes ( ... cyclin-dependent kinase 5 MeSH D12.776.167.200.067.900 - cyclin-dependent kinase 9 MeSH D12.776.167.200.580.500 - cdc2 protein ... cyclin-dependent kinase inhibitor p15 MeSH D12.776.624.776.355.200 - cyclin-dependent kinase inhibitor p16 MeSH D12.776.624.776 ...
CKAP5
Basto R, Gergely F, Draviam VM, Ohkura H, Liley K, Raff JW (2007). "Hsp90 is required to localise cyclin B and Msps/ch-TOG to ... protein tumor overexpressed gene binds to the RNA trafficking protein heterogeneous nuclear ribonucleoprotein A2". Mol. Biol. ...
Schumanniophyton problematicum
... the iridoid flavopiridol and the iridoid glycosides scyphiphorin A1-A2 and scyphiphorin B1-B2. Flavopiridol (known also as ... "Successful treatment of animal models of rheumatoid arthritis with small-molecule cyclin-dependent kinase inhibitors". J. ...
Retinoblastoma protein
One such example of E2F-regulated genes repressed by Rb are cyclin E and cyclin A. Both of these cyclins are able to bind to ... Within 72-96 hours of active Rb induction in A2-4 cells, the target DNA replication factor proteins-MCMs, RPA34, DBF4, RFCp37, ... When E2F is free it activates factors like cyclins (e.g. cyclin E and cyclin A), which push the cell through the cell cycle by ... antagonizing transcription factor ARID4A Aryl hydrocarbon receptor BRCA1 BRF1 C-jun C-Raf CDK9 CUTL1 Cyclin A1 Cyclin D1 Cyclin ...
Platelet-derived growth factor
Ephrins (A1, A2, A3, A4, A5, B1, B2, B3). *Erythropoietin (see here instead) ...
Aminoacyl tRNA synthetase
Arif A, Jia J, Moodt RA, DiCorleto PE, Fox PL (January 2011). "Phosphorylation of glutamyl-prolyl tRNA synthetase by cyclin- ...
Licopeno, a enciclopedia libre
... á luz ou á calor, o licopeno pode sufrir isomerización a un dos seus isómeros cis, estes teñen forma curvada en vez de linear. ... in the cyclin E-cdk2 complexes". Oncogene 20 (26): 3428-436. PMID 11423993. doi:10.1038/sj.onc.1204452.. ... Debido á súa forte cor e falta de toxicidade, o licopeno é un colorante alimentario útil (co número E160d) e o seu uso está ... En canto á súa farmacocinética, despois da súa inxestión, o licopeno incorpórase a micelas lipídicas na luz do intestino ...
Mitosis
Cyclin. *A (A1, A2). *B (B1, B2, B3). *D (D1, D2, D3) ... cyclin-dependent kinases, and other cell cycle proteins. The ... All these phases in the cell cycle are highly regulated by cyclins, ...
Intracranial aneurysm
... collagen type 1 A2, endothelial nitric oxide synthase, endothelin receptor A and cyclin dependent kinase inhibitor. Mutations ...
Hsp70
"CDK-dependent Hsp70 Phosphorylation controls G1 cyclin abundance and cell-cycle progression". Cell. 151 (6): 1308-18. doi ...
Kaposi's sarcoma-associated herpesvirus
Crucial for the Entry of the KSHV [10] is the EPH receptor A2[11] , Hrs[12] , TSG101[13] and a few Integrins, whose identity ... ORF72 - vCyclin ORF73 - LANA, latency-associated nuclear antigen- tethers genome to chromosome during latency, also regulates ... cyclin-D, a G protein-coupled receptor, interferon regulatory factor and Flice inhibitory protein (FLIP), as well as DNA ... "The ephrin receptor tyrosine kinase A2 is a cellular receptor for Kaposi's sarcoma-associated herpesvirus". Nature Medicine ...
Amphiphysin
Floyd SR, Porro EB, Slepnev VI, Ochoa GC, Tsai LH, De Camilli P (March 2001). "Amphiphysin 1 binds the cyclin-dependent kinase ... 13 A2,13 6.89 cM. Start. 18,948,205 bp[2]. End. 19,150,921 bp[2]. ... Floyd SR, Porro EB, Slepnev VI, Ochoa GC, Tsai LH, De Camilli P (March 2001). "Amphiphysin 1 binds the cyclin-dependent kinase ...
Histone acetylation and deacetylation
... and A2 complexes, Gcn5L, p300/CREB-binding protein associated factor (PCAF), Elp3, HPA2 and HAT1.[10][11] Major features of the ... mice were found to die during embryogenesis and showed a drastic reduction in the production but increased expression of Cyclin ...
細胞週期 - 维基百科,自由的百科全书
細胞週期的進行是由不同的週期素(Cyclin)所調控。週期素意味著這些蛋白質的表現量會隨著細胞週期的進行而有所變化,進而確認週期素原來是扮演細胞週期調控的角色。依照目前的認知,就如同細胞週期G1期→S期→G2期→M期的進行,在G1期大量表現的週期素D( ... A(A1、
RET proto-oncogene
Ephrins (A1, A2, A3, A4, A5, B1, B2, B3). *Erythropoietin (see here instead) ...
CEBPA - Вікіпедія
negative regulation of cyclin-dependent protein serine/threonine kinase activity. • lung development. • cytokine-mediated ...
Retinoblastoma protein
One such example of E2F-regulated genes repressed by Rb are cyclin E and cyclin A. Both of these cyclins are able to bind to ... Within 72-96 hours of active Rb induction in A2-4 cells, the target DNA replication factor proteins-MCMs, RPA34, DBF4, RFCp37, ... When E2F is free it activates factors like cyclins (e.g. cyclin E and cyclin A), which push the cell through the cell cycle by ... See also: cyclin-dependent kinase and DREAM complex. When it is time for a cell to enter S phase, complexes of cyclin-dependent ...
Secretina, a enciclopedia libre
Saltar ata a navegación Saltar á procura A secretina é unha hormona que controla as secrecións no duodeno, e tamén a homeostase ... "Retinoic acid-induced human secretin gene expression in neuronal cells is mediated by cyclin-dependent kinase 1". Ann. N. Y. ... Ademais, a secretina estimula a secreción de pepsinóxeno nas células principais, o que axuda á dixestión das proteínas dos ...
CDKN2C - ويكيبيديا
CDKN2C, INK4C, p18, p18-INK4C, cyclin-dependent kinase inhibitor 2C, cyclin dependent kinase inhibitor 2C. ... A (A1, A2). *B (B1, B2, B3). *بروتين سيكلين دي (D1, D2, D3) ... CDKN2C (Cyclin dependent kinase inhibitor 2C) هوَ بروتين يُشَفر بواسطة جين CDKN2C في الإنسان.[1][2][3] ... "Entrez Gene: CDKN2C cyclin-dependent kinase inhibitor 2C (p18, inhibits CDK4)". مؤرشف من الأصل في 05 ديسمبر 2010.. الوسيط , ...
ಅಪೊಪ್ಟೋಸಿಸ್ - ವಿಕಿಪೀಡಿಯ
Cyclin. *A (A1, A2). *B (B1, B2, B3). *D (D1, D2, D3) ...
Mdm2
Zhao L, Samuels T, Winckler S, Korgaonkar C, Tompkins V, Horne MC, Quelle DE (January 2003). "Cyclin G1 has growth inhibitory ... "The MDM2 C-terminal region binds to TAFII250 and is required for MDM2 regulation of the cyclin A promoter". The Journal of ...
PTEN (جين) - ويكيبيديا، الموسوعة الحرة
regulation of cyclin-dependent protein serine/threonine kinase activity. • regulation of cellular component size. • response to ... A2, B) - 6-phosphogluconolactonase - PAF acetylhydrolase ... negative regulation of cyclin-dependent protein serine/ ... negative regulation of cyclin-dependent protein serine/threonine kinase activity. • negative regulation of neuron projection ...
Complexo de recoñecemento da orixe, a enciclopedia libre
Só son necesarias as subunidades Orc1-5 para a unión á orixe de replicación. Pola súa parte, Orc6 é básica para o mantemento do ... Nguyen VQ, Co C, Li JJ (June 2001). "Cyclin-dependent kinases prevent DNA re-replication through multiple mechanisms". Nature ... á cromatina nas orixes de replicación durante o ciclo celular.[5] O ORC dirixe a replicación do ADN por todo o xenoma e é ... "Binding of cyclin-dependent kinases to ORC and Cdc6p regulates the chromosome replication cycle". Proc. Natl. Acad. Sci. U.S.A ...
Myc
The first to be discovered was its capability to drive cell proliferation (upregulates cyclins, downregulates p21), but it also ...
Factor de crecemento transformante beta 1, a enciclopedia libre
Pode tamén diminuír os niveis de expresión de receptores de citocinas, como o receptor de IL-2 para regular á baixa a ... and the cyclin dependent kinase inhibitors P27 and P21". Leuk. Lymphoma 43 (1): 51-7. PMID 11908736. doi:10.1080/10428190210195 ...
Mitogen-activated protein kinase
... the cyclin-dependent kinases (CDKs), where substrates are recognized by the cyclin subunit, MAPKs associate with their ... Garai Á, Zeke A, Gógl G, Törő I, Fördős F, Blankenburg H, Bárkai T, Varga J, Alexa A, Emig D, Albrecht M, Reményi A (Oct 2012 ... The closest relatives of MAPKs are the cyclin-dependent kinases (CDKs).[2] ...
Protein serine/threonine phosphatase
Cyclin. *Cyclin-dependent kinase inhibitor protein. *Cyclin-dependent kinase. *Cyclin. Lipid. *Phosphoinositide phospholipase C ...
Human papillomavirus infection
p53 also upregulates the p21 protein, which blocks the formation of the cyclin D/Cdk4 complex, thereby preventing the ... and annexin A2[93] leading to entry of the virions into basal epithelial cells through clathrin-mediated endocytosis and/or ... "The S100A10 subunit of the annexin A2 heterotetramer facilitates L2-mediated human papillomavirus infection". PLoS One. 7 (8 ...
Cyclopentenone prostaglandins
6-epoxisoprostane A2. In cells, COX-1 and COX-2 metabolize arachidonic acid to PGH2 which is then converted to PGE2 by any one ... Cyclin D1, Cdk4, and Insulin-like growth factor 1; and e) regulating agents such as HSP70, GPR78, Gadd153, Ubiquitin B, and ...
Cyclin A2 - Wikipedia
The cyclin A2-CDK2 complex eventually phosphorylates E2F, turning off cyclin A2 transcription. E2F promotes cyclin A2 ... cyclin A1 is expressed during meiosis and embryogenesis while cyclin A2 is expressed in dividing somatic cells. Cyclin A2 ... Cyclin A2 is synthesized at the onset of S phase and localizes to the nucleus, where the cyclin A2-CDK2 complex is implicated ... Cyclin A2 has been shown to interact with: CDC6, E2F1, FEN1, ITGB3BP, RBL1, and SKP2. Cyclin A2 (Ccna2) is a key protein ...
Anti-Cyclin A2 antibody [E70.1] (ab18719) | Abcam
Anti-Cyclin A2 antibody [E67.1] (ab39) | Abcam
Mouse monoclonal Cyclin A2 antibody [E67.1]. Validated in WB, IP, IHC, ICC, ICC/IF and tested in Mouse, Cow, Human, African ... 148 of human Cyclin A2. Cyclin As that contain the epitope Cow A2 Human A2 Hamster A2 Mouse A2 Cyclin As that do not contain ... Primary - Mouse Anti-Cyclin A2 antibody [E67.1] (ab39) ICC/IF, WB, ICC, IP, IHC-P ... Immunocytochemistry/ Immunofluorescence - Anti-Cyclin A2 antibody [E67.1] (ab39)Image courtesy of an anonymous Abreview. ...
Cyclin A2 expression can help regenerate damaged myocardium
... a protein called cyclin A2. It is unique in its control at two major transitions of the cell cycle and is the only cyclin that ... This approach -- using cyclin A2 expression via gene transfer -- yielded improved myocardial function. "Penn is the first to do ... Cyclin A2 expression can help regenerate damaged myocardium. By University of Pennsylvania School of Medicine Jul 8, 2006, 21: ...
Cyclin A2 expression can help regenerate damaged myocardium
... a protein called cyclin A2. It is unique in its control at two major transitions of the cell cycle and is the only cyclin that ... Cyclin A2 expression can help regenerate damaged myocardium. Jul 8, 2006, 21:55, Reviewed by: Dr. Rashmi Yadav. ... This approach -- using cyclin A2 expression via gene transfer -- yielded improved myocardial function. "Penn is the first to do ... "Therapeutic Delivery of Cyclin A2 Induces Myocardial Regeneration and Enhances Cardiac Function in Ischemic Heart Failure." Co- ...
Exendin-4 Stimulation of Cyclin A2 in β-Cell Proliferation | Diabetes
... or cyclin A2-expressing (CMV-cyclin A2; E1fα-EGFP) lentiviridae. β-Cells infected with cyclin A2-expressing lentivirus (▪) show ... 7). Formation of cyclin A2-cyclin-dependent kinase (cdk) 1 or A2-cdk 2 complexes lead to p27 phosphorylation and degradation ( ... Knockdown of cyclin A2 in Min6 cells reduces proliferation rate. siRNA-mediated knockdown of cyclin A2 in Min6 cells is ... CONCLUSIONS-Cyclin A2 is required for β-cell proliferation, exendin-4 stimulates cyclin A2 expression via the cAMP pathway, and ...
Cyclin A2 Mouse anti-Human, Mouse, Bovine, Mustelid, Primate, Alexa Fluor
| Fisher Scientific
Shop a large selection of products and learn more about Cyclin A2 Mouse anti-Human, Mouse, Bovine, Mustelid, Primate, Alexa ... Cyclin A2 Monoclonal antibody specifically detects Cyclin A2 in Human,Mouse,Bovine,Mustelid,Primate samples. It is validated ... Its epitope is located amino acids 144-148 of human Cyclin A2. Cyclins are regulatory subunits of the cyclin-dependent kinases ... Cyclin A2 Mouse anti-Human, Mouse, Bovine, Mustelid, Primate, Alexa Fluor 750, Clone: E67, Novus Biologicals ...
Cyclin A2 modulates kinetochore-microtubule attachment in meiosis II | JCB
anti-Cyclin A2 antibody | GeneTex
... cyclin A2) for ICC/IF, IHC-P, IP, WB. Anti-Cyclin A2 pAb (GTX103042) is tested in Human, Mouse, Rat samples. 100% Ab-Assurance. ... CCN1 antibody, CCNA antibody, CCNA2 antibody, cyclin-A antibody, cyclin-A2 antibody, cyclin A2 antibody. ... Immunoprecipitation of Cyclin A2 protein by 2.5 μg of Cyclin A2 antibody (GTX103042) 10% SDS-PAGE The immunoprecipitated Cyclin ... Immunoprecipitation of Cyclin A2 protein by 2.5 μg of Cyclin A2 antibody (GTX103042) 10% SDS-PAGE The immunoprecipitated Cyclin ...
Cyclin A2 Induces Cardiac Regeneration After Myocardial Infarction Through Cytokinesis of Adult Cardiomyocytes | Science...
Cyclin A2 (Ccna2), normally silenced after birth in the mammalian heart, can induce cardiac repair in small-animal models of ... Cyclin A2 Induces Cardiac Regeneration After Myocardial Infarction Through Cytokinesis of Adult Cardiomyocytes ... Cyclin A2 Induces Cardiac Regeneration After Myocardial Infarction Through Cytokinesis of Adult Cardiomyocytes ... Cyclin A2 Induces Cardiac Regeneration After Myocardial Infarction Through Cytokinesis of Adult Cardiomyocytes ...
Cyclin A2 is an RNA binding protein that controls Mre11 mRNA translation | Science
Cyclin A2 activates the cyclin-dependent kinases Cdk1 and Cdk2 and is expressed at elevated levels from S phase until early ... Unexpectedly, cyclin A2 controlled Mre11 abundance through a C-terminal RNA binding domain that selectively and directly binds ... These data reveal cyclin A2 as a mechanistically diverse regulator of DNA replication combining multifaceted kinase-dependent ... We found that mutant mice that cannot elevate cyclin A2 are chromosomally unstable and tumor-prone. Underlying the chromosomal ...
Mouse Monoclonal anti-CyclinA2 (E67) | Biotium
Its epitope is located amino acids 144-148 of human Cyclin A2. Cyclins are regulatory subunits of the cyclin-dependent kinases ... In mammalian somatic cells, cyclin A is required for S-phase and passage through G2-phase. The D and E type cyclins regulate ... Adamczewski JP; Gannon JV; Hunt T. Simian virus 40 large T antigen associates with cyclin A and p33cdk2. Journal of Virology, ... These cyclin/cdk complexes are essential for passage through specific stages in the cell cycle. ...
Transcriptional Regulation of Cyclin A2 by RASSF1A through the Enhanced Binding of p120E4F to the Cyclin A2 Promoter | Cancer...
Transcriptional Regulation of Cyclin A2 by RASSF1A through the Enhanced Binding of p120E4F to the Cyclin A2 Promoter. Jalal ... RASSF1A inhibits the cyclin A2 promoter through increasing p120E4F-mediated repression. Cyclin A2 is regulated by the ... Transcriptional Regulation of Cyclin A2 by RASSF1A through the Enhanced Binding of p120E4F to the Cyclin A2 Promoter ... Transcriptional Regulation of Cyclin A2 by RASSF1A through the Enhanced Binding of p120E4F to the Cyclin A2 Promoter ...
Cyclin A2 (BF683) Mouse mAb, UniProt ID P20248 #4656 to TrkB Antibody, UniProt ID Q16620 #4606 from Cell Signaling Technology
Cyclin A2 (BF683) Mouse mAb - Western Blotting, UniProt ID P20248, Entrez ID 890 #4656, Monoclonal Antibody - TESK1 (D49D4) ... Product listing: Cyclin A2 (BF683) Mouse mAb, UniProt ID P20248 #4656 to TrkB Antibody, UniProt ID Q16620 #4606 ... Monoclonal Antibody - Cyclin A2 (BF683) Mouse mAb - Western Blotting, UniProt ID P20248, Entrez ID 890 #4656 ... and cyclin A is required for completion of prophase (5). At late prophase, cyclin A may no longer be necessary as cdc2/cyclinB1 ...
ccna2 Protein, cyclin A2 - Creative BioMart
In contrast to cyclin A1, which is present only in germ cells, this cyclin is expressed in all;tissues tested. This cyclin ... Cyclins function as regulators of CDK kinases.Different cyclins exhibit distinct expression and degradation patterns which ... The protein encoded by this gene belongs to the highly conserved cyclin family, whose members are characterized by a;dramatic ... In contrast to cyclin A1, which is present only in germ cells, this cyclin is expressed in all;tissues tested. This cyclin ...
Cyclin A2 Has a CDK-Independent Role as an RNA Binding Protein | Cancer Discovery
As both underexpression and overexpression of cyclin A2 have been linked to poor outcome in tumors, the role of cyclin A2 in ... Cyclin A2 (encoded by CCNA2) is responsible for activating the cyclin-dependent kinases CDK1 and CDK2 to induce S-phase ... Mechanistically, cyclin A2 bound directly to the 3UTR of Mre11 mRNA in a CDK-independent manner to promote its translation, ... Ccna2−/H mice had a marked reduction in cyclin A2 protein in tissues with a high mitotic index but relatively normal levels in ...
Histone Deacetylase 10 Regulates the Cell Cycle G2/M Phase Transition via a Novel Let-7-HMGA2-Cyclin A2 Pathway | Molecular and...
However, cyclin A2 is the major A-type cyclin in somatic cells (52). Cyclin A2 is ubiquitously expressed in proliferating cells ... Mammals express two A-type cyclins, embryonic-specific cyclin A1 and somatic cyclin A2. Because cyclin A1 expression is ... Loss of cyclin A2 in HDAC10 knockdown cells contributed to G2/M arrest. The effect of HDAC10 on cyclin A2 transcription was ... HDAC10, but not HDAC6, regulates the G2/M transition via cyclin A2. (A and B) Western blot analysis results for cyclin A2 in ...
Cyclin A2 Antibody 66391-1-Ig | Proteintech
Cyclin A2 antibody Mouse Monoclonal from Proteintech validated in Western Blot (WB), Immunohistochemistry (IHC), ... WB protocol for Cyclin A2 antibody 66391-1-Ig. Download protocol. IHC protocol for Cyclin A2 antibody 66391-1-Ig. Download ... Cyclin A2 Monoclonal antibody. Cyclin A2 Monoclonal Antibody for IF, IHC, WB,ELISA. ... WB result of Cyclin A2 antibody (66391-1-Ig; 1:2000; incubated at room temperature for 1.5 hours) with sh-Control and sh-Cyclin ...
A novel function for Cyclin A2: Control of cell invasion via RhoA signaling - IGMM
These defects are rescued by restoration of wild-type Cyclin A2, which directly interacts with RhoA, or by a Cyclin A2 mutant ... Cyclin A2 potentiates the exchange activity of a RhoA-specific guanine nucleotide exchange factor. Consistent with this, Cyclin ... Cyclin A2 plays a key role in cell cycle regulation. It is essential in embryonic cells and in the hematopoietic lineage yet ... Moreover, Cyclin A2 expression is lower in metastases relative to primary colon adenocarcinoma in matched human tumors. All ...
RCSB PDB - Protein Feature View
- Cyclin-A2 - P20248 (CCNA2 HUMAN)
Cyclin which controls both the G1/S and the G2/M transition phases of the cell cycle. Functions through the formation of ... The cyclin subunit confers the substrate specificity of these complexes and differentially interacts with and activates CDK1 ... specific serine/threonine protein kinase holoenzyme complexes with the cyclin-dependent protein kinases CDK1 or CDK2. ...
Cyclin A2 - Beckman Coulter
... there are two A-type cyclins - an embryonic-specific cyclin A1 and a somatic cyclin A2. Cyclin A1 is only expressed in meiosis ... whereas cyclin A2 is present in proliferating somatic cells ... cyclin A2 complexes to the CDK1 (also called CDC2). Cyclin A2 ... Cyclin A2 Antigen. In humans, there are two A-type cyclins - an embryonic-specific cyclin A1 and a somatic cyclin A2. Cyclin A1 ... whereas cyclin A2 is present in proliferating somatic cells. Cyclin A2 is a 48 kDa protein composed of 432 amino-acids. Cyclins ...
Anti-Cyclin A2 抗体 (ab2097) | アブカム
"ウサギ・ポリクローナル抗体 ab2097 交差種: Ms,Rat,Rb,Hu 適用: WB,IP,ELISA,ICC/IF…Cyclin A2抗体一覧…画像、プロトコール、文献などWeb上の情報 ... Anti-Cyclin A2 antibody. Cyclin A2 一次抗体 製品一覧. ... 一次抗体 - Rabbit Anti-Cyclin A2 antibody (ab2097) WB, IP, ELISA, ... タンパク質 - Recombinant Human Cyclin A2 protein (ab126696) SDS-PAGE 二次抗体 - Goat Anti-Rabbit IgG H&L (HRP) (ab205718) IHC-P, WB, ... Immunocytochemistry/ Immunofluorescence - Anti-Cyclin A2 antibody (ab2097)Image from
Cyclin A2 - AP06079PU-N | acris-antibodies.com
The critical role that the family of regulatory proteins known as cyclins play in eukaryotic cell cycle regulation is well ... Product Description for Cyclin A2. Rabbit anti Human, Mouse, Rat Cyclin A2.. Presentation: Aff - Purified. Product is tested ... A second form of cyclin A, named cyclin A1 because of its high sequence homology to Xenopus cyclin A1, is most highly expressed ... Cyclin A2. Add to Cart. Human > 80 % Preparation: Recombint protein was captured through anti-DDK affinity column followed by ...
Anti-Cyclin A2 抗体 [E23.1] (ab38) | アブカム
"マウス・モノクローナル抗体 ab38 交差種: Ms,Rat,Hu 適用: WB,IP,IHC-P,IHC-Fr,Flow Cyt…Cyclin A2抗体一覧…画像、プロトコール、文献など ... Anti-Cyclin A2 antibody [E23.1]. Cyclin A2 一次抗体 製品一覧. ... All lanes : Anti-Cyclin A2 antibody [E23.1] (ab38) at 2 µg/ml. Lane 1 : U2OS (Hu) whole cell lysate. Lane 2 : 293T (Hu) whole ... All lanes : Anti-Cyclin A2 antibody [E23.1] (ab38) at 5 µg/ml. Lane 1 : HEK293 (Human embryonic kidney cell line) Whole
Cyclin A2 modulates kinetochore-microtubule attachment in meiosis II
The role of cyclin A2 in female meiosis and its dynamics during the transition from meiosis I (MI) to meiosis II (MII) remain ... Conditional deletion of cyclin A2 from mouse oocytes has no discernible effect on MI but leads to disrupted MII spindles and ... We found that cyclin A2 decreases in prometaphase I but recovers after the first meiotic division and persists, uniquely for ... Cyclin A2 is a crucial mitotic Cdk regulatory partner that coordinates entry into mitosis and is then destroyed in prometaphase ...
Cyclin A-Cdk1 regulates the origin firing program in mammalian cells | PNAS
Purification of Recombinant Cyclin-Cdk Fusion Proteins.. pcDNA3.1cyclin A2-Cdk1, pcDNA3.1cyclin A2-Cdk2, pcDNA3.1cyclin B1-Cdk1 ... but not cyclin A2-Cdk2AF or cyclin A2-Cdk1AF, induced γH2AX foci in HeLa cells (Fig. 2B). Amounts of cyclin B1-Cdk1AF, cyclin ... Construction of Cyclin A2-Cdk1, Cyclin A2-Cdk2, and Cyclin B1-Cdk1 Fusion Vectors.. For subcloning of full-length mouse Cdk1 ... For preparation of cyclin A2-Cdk1, cyclin A2-Cdk2, and cyclin B1-Cdk1 fusion constructs, sets of primers and mouse cDNA derived ...
B15092 - Beckman Coulter
In humans, there are two A-type cyclins - an embryonic-specific cyclin A1 and a somatic cyclin A2. Cyclin A1 is only expressed ... whereas cyclin A2 is present in proliferating somatic cells. Cyclin A2 is a 48 kDa protein composed of 432 amino-acids. Cyclins ... For passage through G2 to M phase, cyclin A2 complexes to the CDK1 (also called CDC2). Cyclin A2 is degraded via the ubiquitin- ... The cyclin A2-CDK2 complex initiates DNA replication and is required for S phase progression. ...
Cyclin A2 is an RNA binding protein that controls Mre11 mRNA translation<...
Cyclin A2 is an RNA binding protein that controls Mre11 mRNA translation. Together they form a unique fingerprint. * Cyclin A2 ... Cyclin A2 activates the cyclin-dependent kinases Cdk1 and Cdk2 and is expressed at elevated levels from S phase until early ... N2 - Cyclin A2 activates the cyclin-dependent kinases Cdk1 and Cdk2 and is expressed at elevated levels from S phase until ... AB - Cyclin A2 activates the cyclin-dependent kinases Cdk1 and Cdk2 and is expressed at elevated levels from S phase until ...
Cyclin A2 localises in the cytoplasm at the S/G2 transition to activate PLK1.
Cyclin A2 participates in feedback loops that activate mitotic kinases in G2 phase, but why active Cyclin A2-CDK2 during the S ... Cytoplasmic presence of Cyclin A2 is restricted by p21, in particular after DNA damage. Cyclin A2 chromatin association during ... and that only cytoplasmic Cyclin A2 interacts with Bora and PLK1. Expression of predominately cytoplasmic Cyclin A2 or phospho- ... Cyclin A2 is a key regulator of the cell cycle, implicated both in DNA replication and mitotic entry. ...
PDB 4bcn structure summary ‹ Protein Data Bank in Europe (PDBe) ‹ EMBL-EBI
Cyclin-like superfamily * Occurring in:. *Cyclin-A2. *Cyclin-A2. > Cyclin-like * Occurring in:. *Cyclin-A2. *Cyclin-A2. > ... Cyclin-A2 Chain: B Molecule details › Chain: B. Length: 262 amino acids. Theoretical weight: 30.08 KDa. Source organism: Homo ... Cyclin-A2 Chain: D Molecule details › Chain: D. Length: 262 amino acids. Theoretical weight: 30.04 KDa. Source organism: Homo ... Cyclin-dependent kinase 2. > Protein kinase domain * Occurring in:. *Cyclin-dependent kinase 2. > Protein kinase, ATP binding ...
Ccna2CDK2KinasesProtein KinaseAntibodyGeneMRNARole of cyclinCDK1ProteinsLevels of cyclinPromoterProgressionRegulates cyclin A2 expressionPhosphorylationMitosisCDC2ReplicationRegulatorInteractsCytoplasmCdksSomaticOverexpression of cyclinPathwaySpecificitySpeciesCDK4ExpressionHumanChromosomesFound that cyclinDeletion of cyclinBindsComplexesAntigenTransitionDependentRegulationInhibitorKnockdownMiceGerm cellsTranscriptionMeiosisAmino acids
Ccna29
- Cyclin-A2 is a protein that in humans is encoded by the CCNA2 gene. (wikipedia.org)
- Cyclin A2 (Ccna2) is a key protein involved in the direction of mammalian cardiac myocytes to grow and divide, and has been shown to induce cardiac repair following myocardial infarction. (wikipedia.org)
- Cyclin A2 ( Ccna2 ), normally silenced after birth in the mammalian heart, can induce cardiac repair in small-animal models of myocardial infarction. (sciencemag.org)
- Cyclin A2 (encoded by CCNA2 ) is responsible for activating the cyclin-dependent kinases CDK1 and CDK2 to induce S-phase chromosome duplication and initiate mitosis. (aacrjournals.org)
- Because complete loss of cyclin A2 is embryonically lethal, Kanakkanthara and colleagues developed a hypomorphic Ccna2 allele ( Ccna2 H ) with reduced expression of cyclin A2 to better understand its role in tumorigenesis. (aacrjournals.org)
- Ccna2 −/ H mice had a marked reduction in cyclin A2 protein in tissues with a high mitotic index but relatively normal levels in tissues with less actively dividing cells. (aacrjournals.org)
- Ccna2 −/ H mice were more susceptible to spontaneous and carcinogen-induced tumors than Ccna2 +/+ mice, indicating that cyclin A2 insufficiency promotes malignant transformation. (aacrjournals.org)
- Important cyclin involved in cell cycle control [ 794 ], CCNA2 could be a downstream target of pathways related to senescence and ageing. (senescence.info)
- This Cyclin A (CCNA2) antibody is generated from rabbits immunized with a KLH conjugated synthetic peptide between 51-84 amino acids from the N-terminal region of human Cyclin A (CCNA2). (avivasysbio.com)
CDK232
- Cyclin A2 is synthesized at the onset of S phase and localizes to the nucleus, where the cyclin A2-CDK2 complex is implicated in the initiation and progression of DNA synthesis. (wikipedia.org)
- Phosphorylation of CDC6 and MCM4 by the cyclin A2-CDK2 complex prevents re-replication of DNA during the cell cycle. (wikipedia.org)
- The cyclin A2-CDK2 complex eventually phosphorylates E2F, turning off cyclin A2 transcription. (wikipedia.org)
- This cyclin binds and activates CDC2 or CDK2 kinases, and thus promotes both cell cycle G1/S and G2/M transitions. (genetex.com)
- Cyclin A2 activates the cyclin-dependent kinases Cdk1 and Cdk2 and is expressed at elevated levels from S phase until early mitosis. (sciencemag.org)
- Functions through the formation of specific serine/threonine protein kinase holoenzyme complexes with the cyclin-dependent protein kinases CDK1 or CDK2 . (sdsc.edu)
- The cyclin subunit confers the substrate specificity of these complexes and differentially interacts with and activates CDK1 and CDK2 throughout the cell cycle. (sdsc.edu)
- The cyclin A2-CDK2 complex initiates DNA replication and is required for S phase progression. (mybeckman.com.br)
- Cyclin A accumulates prior to cyclin B in the cell cycle, appears to be involved in control of S phase and has been shown to associate with cyclin-dependent kinase-2 (Cdk2). (acris-antibodies.com)
- It has been proposed that cyclin A1 can associate with Cdk2, p39 and Cdc2 p34. (acris-antibodies.com)
- Cyclin A2 participates in feedback loops that activate mitotic kinases in G2 phase, but why active Cyclin A2-CDK2 during the S phase does not trigger mitotic kinase activation remains unclear. (scilifelab.se)
- We find that Cyclin A2-CDK2 can activate the mitotic kinase PLK1 through phosphorylation of Bora, and that only cytoplasmic Cyclin A2 interacts with Bora and PLK1. (scilifelab.se)
- The adenosine 5'-triphosphate (ATP) competitive cyclin-dependent kinase inhibitor O(6)-cyclohexylmethylguanine (NU2058, 1) has been employed as the lead in a structure-based drug discovery program resulting in the discovery of the potent CDK1 and -2 inhibitor NU6102 (3, IC(50) = 9.5 nM and 5.4 nM vs CDK1/cyclinB and CDK2/cyclinA3, respectively). (rcsb.org)
- Phospho-CDK2/cyclin A, a kinase that is active in cell cycle S phase, contains an RXL substrate recognition site that is over 40 A from the catalytic site. (rcsb.org)
- Cyclin E/CDK2 prevents oxidative stress-mediated Ras-induced senescence by phosphorylating MYC. (uniprot.org)
- NPM1 phosphorylation by cyclin E/CDK2 promotes its dissociates from unduplicated centrosomes, thus initiating centrosome duplication. (uniprot.org)
- Cyclin E/CDK2-mediated phosphorylation of NPAT at G1-S transition and until prophase stimulates the NPAT-mediated activation of histone gene transcription during S phase. (uniprot.org)
- This cyclin binds both CDK2 and CDC2 kinases, which give two distinct kinase activities, one appearing in S phase, the other in G2, and thus regulate separate functions in cell cycle. (novusbio.com)
- Cyclin A can regulate multiple cell cycle steps because it associates with, and thereby activates, two distinct CDKs - CDK2 and CDK1. (wikipedia.org)
- Association of cyclin A with CDK2 is required for passage into S phase while association with CDK1 is required for entry into M phase. (wikipedia.org)
- As the cell passes from G1 into S phase, cyclin A associates with CDK2, replacing cyclin E. Cyclin E is responsible for initiating the assembly of the pre-replication complex. (wikipedia.org)
- When the amount of cyclin A/CDK2 complex reaches a threshold level, it terminates the assembly of the pre-replication complex made by cyclin E/CDK2. (wikipedia.org)
- As the amount of Cyclin A/CDK2 complex increases, the complex initiates DNA replication. (wikipedia.org)
- This is thought to occur through the phosphorylation of particular DNA replication machinery components, such as CDC6, by the cyclin A/CDK2 complex. (wikipedia.org)
- Since the action of cyclin A/CDK2 inhibits that of cyclin E/CDK2, the sequential activation of cyclin E followed by the activation of cyclin A is important and tightly regulated in S phase. (wikipedia.org)
- Cyclin A/CDK2 complex was thought to be restricted to the nucleus and thus exclusively involved in S phase progression. (wikipedia.org)
- New research has since debunked this assumption, shedding light on cyclin A/CDK2 migration to the centrosomes in late G2. (wikipedia.org)
- It is suspected that the presence of cyclin A/CDK2 at the centrosomes may confer a means of regulating the movement of cyclin B/CDK1 to the centrosome and thus the timing of mitotic events. (wikipedia.org)
- A study in 2008 provided further evidence of cyclin A/CDK2 complex's role in mitosis. (wikipedia.org)
- Cells were modified so their CDK2 was inhibited and their cyclin A2 gene was knocked out. (wikipedia.org)
- Coupling of microtubule nucleation in the centrosome with mitotic events in the nucleus was lost in the cyclin A knockout/CDK2 inhibited mutant cells. (wikipedia.org)
- This G1 arrest is associated with a dramatic decrease in the protein levels of Cdk2 and cyclin E correlated with an inhibition of the Cdk2 kinase activity. (biomedsearch.com)
Kinases9
- Cyclin A2 belongs to the cyclin family, whose members regulate cell cycle progression by interacting with CDK kinases. (wikipedia.org)
- Cyclins are regulatory subunits of the cyclin-dependent kinases (cdks) and they control transition at different specific phases of the cell cycle. (fishersci.com)
- Cyclins function as regulators of CDK kinases. (genetex.com)
- Cyclins are regulatory subunits of the cyclin-dependent kinases (cdk's) and they control transition at different specific phases of the cell cycle. (biotium.com)
- Cyclins control the activation of cyclin dependent kinases (CDKs) by associating with them to form a cyclin-CDK complex able to phosphorylate selected proteins and to induce downstream processes. (mybeckman.com.br)
- Cyclin A, along with the other members of the cyclin family, regulates cell cycle progression through physically interacting with cyclin-dependent kinases (CDKs), which thereby activates the enzymatic activity of its CDK partner. (wikipedia.org)
- Lactoferrin inhibits G1 cyclin-dependent kinases during growth arrest of human breast carcinoma cells. (biomedsearch.com)
- Here we show that p21 WAF1/CIP1, the prototype inhibitor of cyclin-dependent kinases (CDKs), is required for this coordination in human cells. (biomedsearch.com)
- Although cyclins were initially characterized as molecules whose expression "cycled" (hence the name) once per cell cycle, it is now known that they function both as activating regulatory subunits and substrate specificity-determining components for cyclin-dependent kinases (Cdks) ( 9 , 27 , 29 ). (asm.org)
Protein Kinase1
- The encoded protein is the catalytic subunit of the cyclin-dependent protein kinase complex, which regulates progression through the cell cycle. (nih.gov)
Antibody13
- Cyclin A2 antibody immunoprecipitates cyclin A2 protein in IP experiments. (genetex.com)
- IP Sample: 1000 μg 293T whole cell lysate/extract A. 30 μg 293T whole cell lysate/extract B. Control with 2.5 μg of preimmune rabbit IgG C. Immunoprecipitation of Cyclin A2 protein by 2.5 μg of Cyclin A2 antibody (GTX103042) 10% SDS-PAGE The immunoprecipitated Cyclin A2 protein was detected by Cyclin A2 antibody (GTX103042) diluted at 1:1000. (genetex.com)
- Untreated (-) and treated (+) HeLa whole cell extracts (30 µg) were separated by 10% SDS-PAGE, and the membrane was blotted with Cyclin A2 antibody (GTX103042) diluted at 1:1000. (genetex.com)
- Cyclin A2 antibody detects Cyclin A2 protein by western blot analysis. (genetex.com)
- This antibody recognizes a protein of 54 kDa, which is identified as cyclin A. (biotium.com)
- Various lysates were subjected to SDS PAGE followed by western blot with 66391-1-Ig (Cyclin A2 antibody) at dilution of 1:10000 incubated at room temperature for 1.5 hours. (ptglab.com)
- Immunohistochemical analysis of paraffin-embedded human tonsillitis tissue slide using 66391-1-Ig (Cyclin A2 antibody) at dilution of 1:2000 (under 10x lens. (ptglab.com)
- Immunohistochemical analysis of paraffin-embedded human tonsillitis tissue slide using 66391-1-Ig (Cyclin A2 antibody) at dilution of 1:2000 (under 40x lens. (ptglab.com)
- Immunofluorescent analysis of (4% PFA ) fixed HeLa cells using 66391-1-Ig(Cyclin A2 antibody) at dilution of 1:100 and Alexa Fluor 488-conjugated AffiniPure Goat Anti-Mouse IgG(H+L). (ptglab.com)
- The 11B2G3 antibody reacts with human cyclin A2. (mybeckman.com.br)
- This antibody detects endogenous levels of Cyclin A2 protein (region surrounding Trp250). (acris-antibodies.com)
- Western Blot: Cyclin A1 Antibody [NBP1-02902] - Cyclin A1 western with U2OS cells. (novusbio.com)
- Immunohistochemistry-Paraffin: Cyclin A1 Antibody [NBP1-02902] - Human testis after heat-induced antigen retrieval. (novusbio.com)
Gene9
- This approach -- using cyclin A2 expression via gene transfer -- yielded improved myocardial function. (rxpgnews.com)
- The protein encoded by this gene belongs to the highly conserved cyclin family, whose members are characterized by a dramatic periodicity in protein abundance through the cell cycle. (genetex.com)
- Together, these data identify the cyclin A2 gene as a cellular target for RASSF1A through p120 E4F and for the first time suggest a transcriptional mechanism for RASSF1A-dependent cell cycle regulation. (aacrjournals.org)
- In the process of searching for regulatory factors of endoreduplication, the promoter of an Arabidopsis thaliana cyclin A gene, CYCA2;3 , was revealed to be active in developing trichomes during the termination period of endoreduplication as well as in proliferating tissues. (plantcell.org)
- In this study, using real- time RT-PCR method , we defined the time course of degradation and deadenylation of an oocyte specific gene [c-mos] more precisely and a gene that is re-synthesized after ZGA [ cyclin A2 ]. (bvsalud.org)
- The gene expression pattern of A2V6 mRNA in human tissues was noticeably different from that of wild-type cyclin A2 A2WT mRNA. (duhnnae.com)
- To study the inhibitory effect of small interference RNA ( siRNA ) targeting cyclin A2 gene on the growth of osteosarcoma MG-63 and human normal skin fibroblast HSF cells and to explore whether cyclin A2 siRNAs could become a useful tool in the treatment of osteosarcoma . (bvsalud.org)
- The cyclin encoded by this gene was shown to be expressed in testis and brain, as well as in several leukemic cell lines, and is thought to primarily function in the control of the germline meiotic cell cycle. (novusbio.com)
- A single cyclin A gene has been identified in Drosophila while Xenopus, mice and humans contain two distinct types of cyclin A: A1, the embryonic-specific form, and A2, the somatic form. (wikipedia.org)
MRNA16
- Using small interfering RNA to knockdown endogenous RASSF1A in the breast tumor cell line HB2 and in the cervical cancer cell line HeLa, we identify that a key player in cell cycle progression, cyclin A2, is concomitantly increased at both protein and mRNA levels. (aacrjournals.org)
- Cyclin A2 binds to Mre11 mRNA to promote Mre11 translation and repair of replication errors. (aacrjournals.org)
- Mechanistically, cyclin A2 bound directly to the 3'UTR of Mre11 mRNA in a CDK-independent manner to promote its translation, and thus depletion of cyclin A2 resulted in a reduction in MRE11. (aacrjournals.org)
- Van Deursen, Jan M. / Cyclin A2 is an RNA binding protein that controls Mre11 mRNA translation . (elsevier.com)
- siRNA-mediated WTAP knockdown down-regulated the stability of cyclin A2 mRNA through a nine-nucleotide essential sequence in cyclin A2 mRNA 3′ UTR. (elsevier.com)
- Collectively, these findings establish WTAP as an essential factor for the stabilization of cyclin A2 mRNA, thereby regulating G 2 /M cell-cycle transition. (elsevier.com)
- Our data indicate that oocyte -specific transcript, c-mos, degrades rapidly while cyclin A2 mRNA does not and the deadenylation of c-mos mRNA precedes the process of degradation. (bvsalud.org)
- Sequence-specific primers were designed to amplify various exon-intron regions of cyclin A2 mRNA in cell lines and human tissues. (duhnnae.com)
- We found a splice variant of cyclin A2 mRNA called A2V6 that partly retains Intron 6. (duhnnae.com)
- This study has revealed that some highly differentiated human tissues express an intron-retaining cyclin A2 mRNA that induced a G1-S block in vitro. (duhnnae.com)
- Three pairs of siRNAs targeting cyclin A2 mRNA and a pair of nonsense siRNA were designed according to the current criteria. (bvsalud.org)
- At the same time , the mRNA expression of PCNA and cyclin B1 in siRNA -treated MG-63 cells were examined. (bvsalud.org)
- After 48 h treatment with siRNA1, cyclin A2 mRNA and protein expression in MG-63 cells was significantly reduced by nearly 80% as compared with that of the blank control group , whereas the negative and blank control groups had similar expression levels. (bvsalud.org)
- Cyclin A2 -siRNAs can induce obvious inhibition of cyclin A2 mRNA and protein expression in MG-63 and HSF cells , which consequently down-regulate the proliferation of MG-63 cells . (bvsalud.org)
- BrunoL1 regulates endoderm proliferation through translational enhancement of cyclin A2 mRNA. (xenbase.org)
- We demonstrate that BrunoL1 regulates proliferation of endoderm cells through translational control of cyclin A2 mRNA. (xenbase.org)
Role of cyclin5
- As both underexpression and overexpression of cyclin A2 have been linked to poor outcome in tumors, the role of cyclin A2 in tumor progression is unclear. (aacrjournals.org)
- The role of cyclin A2 in female meiosis and its dynamics during the transition from meiosis I (MI) to meiosis II (MII) remain unclear. (edu.au)
- We demonstrate here the essential role of cyclin A2-Cdk1 in the regulation of late origin firing. (pnas.org)
- To investigate the role of cyclin F in vivo, we generated mice deficient for cyclin F and conditionally deficient mice as well as mouse embryonic fibroblasts (MEFs) conditionally deficient for cyclin F. Heterozygous animals are normal and fertile, but CycF −/− animals, with a myriad of developmental anomalies due in large part to failures in yolk sac and chorioallantoic placentation, die around embryonic day 10.5. (asm.org)
- In addition, cyclin E expression from the cyclin D1 promoter completely rescues phenotypic consequences of cyclin D1 loss by bypassing cyclin D1's function in the cell cycle ( 12 ), suggesting that the essential role of cyclin D is to activate cyclin E expression. (asm.org)
CDK115
- Recent studies have shown that the cyclin A2-CDK1 complex triggers cyclin B1-CDK1 activation which results in chromatin condensation and the breakdown of the nuclear envelope. (wikipedia.org)
- For passage through G2 to M phase, cyclin A2 complexes to the CDK1 (also called CDC2). (mybeckman.com.br)
- Activity of cyclin A2-Cdk1 was hardly detected at the onset of S phase, but it was obvious at middle to late S phase under unperturbed condition. (pnas.org)
- Chk1 depletion resulted in increased expression of Cdc25A, subsequent hyperactivation of cyclin A2-Cdk1, and abnormal replication at early S phase. (pnas.org)
- Our results thus suggest that cyclin A2-Cdk1 is a key regulator of S-phase programs. (pnas.org)
- In this article, we demonstrate that Chk1 depletion resulted in an aberrant origin firing and a hyperactivation of cyclin A2-Cdk1 at early S phase. (pnas.org)
- Ectopic expression of cyclin A2-Cdk1AF induced late origin firing at early S phase, and a loss of Cdk1 activity compromised activation of late origins at late S phase. (pnas.org)
- Our results thus suggested that cyclin A2-Cdk1 might function as a transregulator of late origin firing in mammals. (pnas.org)
- controls the timing of entry into mitosis/meiosis by controlling the subsequent activation of cyclin B/CDK1 by phosphorylation, and coordinates the activation of cyclin B/CDK1 at the centrosome and in the nucleus. (uniprot.org)
- In late S phase, cyclin A can also associate with CDK1. (wikipedia.org)
- Cyclin A remains associated with CDK1 from late S into late G2 phase when it is replaced by cyclin B. Cyclin A/CDK1 is thought to be involved in the activation and stabilization of cyclin B/CDK1 complex. (wikipedia.org)
- Degradation of cyclin A/CDK1 induces mitotic exit. (wikipedia.org)
- These mutants entered mitosis late due to a delayed activation of the cyclin B/CDK1 complex. (wikipedia.org)
- Cyclin B-dependent kinase (CDK1-CCNB1) promotes entry into mitosis. (rupress.org)
- The two crucial targets ubiquitylated by the APC/C to promote mitotic exit are securin, the inhibitor of separase, and most important for this work, cyclin B, the activating subunit of a cyclin-dependent mitotic kinase (CDK1). (rupress.org)
Proteins8
- The critical role that the family of regulatory proteins known as cyclins play in eukaryotic cell cycle regulation is well established. (acris-antibodies.com)
- Here, we show that the ubiquitin ligase NIRF (also known as UHRF2), which induces G1 arrest, interacts with multiple cell cycle proteins including cyclins (A2, B1, D1 and E1), p53 and pRB, and ubiquitinates cyclins D1 and E1. (nih.gov)
- This cyclin was found to bind to important cell cycle regulators, such as Rb family proteins, transcription factor E2F-1, and the p21 family proteins. (novusbio.com)
- We compared the ability of other Bruno-Like proteins, both vertebrate and invertebrate, to stimulate translation via the cyclin A2 3''UTR and found that only Drosophila Bru-3 had similar activity. (xenbase.org)
- The proteins that N-(3-cyclopropyl-1H-pyrazol-5-yl)-2-(2-naphthyl)acetamide targets include cyclin-A2 and cyclin-dependent kinase 2. (drugbank.ca)
- Cyclin A is a member of the cyclin family, a group of proteins that function in regulating progression through the cell cycle. (wikipedia.org)
- In developing white matter, decreased total β-catenin, activated β-catenin, and cyclin D1 levels coincided with the peak of Sox17 expression, and immunoprecipitates showed a developmentally regulated interaction among Sox17, T-cell transcription factor 4, and β-catenin proteins. (jneurosci.org)
- however, none of these proteins have been shown to contribute to cyclin B1 localization. (rupress.org)
Levels of cyclin3
- The levels of cyclin A2 are tightly synchronized with the progression of the cell cycle. (wikipedia.org)
- RESULTS- Mice treated with exendin-4 showed increased β-cell proliferation, elevated islet protein levels of cyclin A2 with unchanged D-type cyclins, elevated PDX-1 and Skp2 levels, and reduced p27 levels. (diabetesjournals.org)
- Sox17 knockdown also increases the levels of cyclin D1, Axin2, and activated β-catenin. (jneurosci.org)
Promoter6
- E2F promotes cyclin A2 transcription by de-repressing the promoter. (wikipedia.org)
- Exendin-4 stimulated cyclin A2 promoter activity via the cAMP-cAMP response element binding protein pathway. (diabetesjournals.org)
- However, electrophoretic mobility shift assays indicate that knockdown of endogenous RASSF1A in HB2 and HeLa cells leads to a reduction in the binding capacity of p120 E4F to the cyclin A2 promoter, whereas in the A549 clone stably expressing RASSF1A the binding capacity is increased. (aacrjournals.org)
- HDAC10 regulates cyclin A2 expression by deacetylating histones near the let-7 promoter, thereby repressing transcription. (asm.org)
- HMGA2 loss resulted in enrichment of the transcriptional repressor E4F at the cyclin A2 promoter. (asm.org)
- Sox17 overexpression inhibited PDGF-induced TOPFLASH and cyclin D1 promoter activity, and decreased endogenous cyclin D1, activated β-catenin, as well as total β-catenin levels. (jneurosci.org)
Progression8
- Because cyclin A2 was stimulated by cAMP, we assessed the role of cylcin A2 in cell cycle progression in Min6 and isolated islet β-cells. (diabetesjournals.org)
- A report from our laboratory (9) suggests an interaction of RASSF1A with the ubiquitously expressed E1A-regulated transcription factor p120 E4F , a transcriptional repressor of cyclin A2, adding further weight to the role RASSF1A in cell cycle progression. (aacrjournals.org)
- Furthermore, overexpression of p120 E4F in NIH 3T3 cells inhibits progression from G 1 to S phase by a mechanism that involves the repression of cyclin A2 (13) . (aacrjournals.org)
- Human cyclin A2 is a key regulator of S phase progression and entry into mitosis. (duhnnae.com)
- Alternative splice variants of the G1 and mitotic cyclins have been shown to interfere with full-length cyclin functions to modulate cell cycle progression and are therefore likely to play a role in differentiation or oncogenesis. (duhnnae.com)
- Transcription of cyclin A is tightly regulated and synchronized with cell cycle progression. (wikipedia.org)
- Initiation of transcription of cyclin A is coordinated with passage of the R point, a critical transition point that is required for progression from G1 into S phase. (wikipedia.org)
- Surprisingly, the E-type cyclins appear to be dispensable for cell cycle progression in normally cycling cells, but they are essential for cell cycle reentry ( 13 , 24 ). (asm.org)
Regulates cyclin A2 expression1
- In this study, we investigated the mechanism by which ASL regulates cyclin A2 expression. (ncku.edu.tw)
Phosphorylation2
- It is also possible that cyclin A2-CDK contributes to tumorigenesis by the phosphorylation of oncoproteins or tumor suppressors like p53. (wikipedia.org)
- Acinus S422D, an SRPK2 phosphorylation mimetic, enhances cyclin A1 transcription, whereas acinus S422A, an unphosphorylatable mutant, blocks the stimulatory effect of SRPK2. (aacrjournals.org)
Mitosis8
- The D and E type cyclins regulate the passage of G1, while cyclin B is a critical regulator of mitosis. (fishersci.com)
- Background: While overcoming the G1/S checkpoint to commence DNA replication requires cyclin E, and traversing the G2/M checkpoint to initiate mitosis requires cyclin B to be present, cyclin A seems to be required for both S-phase and M-phase (1). (cellsignal.com)
- Cyclin A availability is apparently the rate-limiting step for entry into mitosis, and cyclin A is required for completion of prophase (5). (cellsignal.com)
- Cyclin A2 is degraded via the ubiquitin-dependant proteolysis pathway in the early phases of mitosis. (mybeckman.com.br)
- Cyclin A2 is a crucial mitotic Cdk regulatory partner that coordinates entry into mitosis and is then destroyed in prometaphase within minutes of nuclear envelope breakdown. (edu.au)
- activated by interaction with cyclin E during the early stages of DNA synthesis to permit G1-S transition, and subsequently activated by cyclin A2 (cyclin A1 in germ cells) during the late stages of DNA replication to drive the transition from S phase to mitosis, the G2 phase. (uniprot.org)
- NPY also upregulated several genes required for mitosis in MSC, including aurora B kinase, FGF-2, cycline A2, eukaryotic initiation factor 4 E, and stromal cell-derived factor-1α. (physiology.org)
- This indicates that distinct properties of cyclin A and B are required to initiate and then sustain mitosis ( Gong and Ferrell, 2010 ). (rupress.org)
CDC23
- At late prophase, cyclin A may no longer be necessary as cdc2/cyclinB1 becomes active (5). (cellsignal.com)
- The best-characterized cyclin complex is the mitotic cyclin B/Cdc2 p34 kinase, the active component of maturing promoting factor. (acris-antibodies.com)
- In agreement with this observation, cdc2 kinase, a cdc2/cyclin B complex essential for G 2 -M phase transition, phosphorylates SF2/ASF ( 11 ). (aacrjournals.org)
Replication7
- These data reveal cyclin A2 as a mechanistically diverse regulator of DNA replication combining multifaceted kinase-dependent functions with a kinase-independent, RNA binding-dependent role that ensures adequate repair of common replication errors. (sciencemag.org)
- A number of studies have described the ability of over-expressed cyclin A to accelerate the G1 to S transition causing DNA replication, and cyclin A antisense DNA can prevent DNA replication (2-4). (cellsignal.com)
- Hence, the ectopic expression of cyclin A2-Cdk1AF (constitutively active mutant) fusion constructs resulted in abnormal origin firing, causing the premature appearance of DNA replication at late origins at early S phase. (pnas.org)
- Cyclin A2 is a key regulator of the cell cycle, implicated both in DNA replication and mitotic entry. (scilifelab.se)
- Cyclin A2 chromatin association during DNA replication and additional mechanisms contribute to Cyclin A2 localisation change in the G2 phase. (scilifelab.se)
- Cyclin A resides in the nucleus during S phase where it is involved in the initiation and completion of DNA replication. (wikipedia.org)
- In addition to initiating DNA synthesis, Cyclin A ensures that DNA is replicated once per cell cycle by preventing the assembly of additional replication complexes. (wikipedia.org)
Regulator2
- They did this by expressing the cell-cycle regulator, a protein called cyclin A2. (rxpgnews.com)
- A known transcriptional regulator of cyclin A2, p120 E4F (a repressor of cyclin A2), has been shown previously by our group to interact with RASSF1A. (aacrjournals.org)
Interacts3
- These defects are rescued by restoration of wild-type Cyclin A2, which directly interacts with RhoA, or by a Cyclin A2 mutant unable to associate with Cdk. (cnrs.fr)
- Cyclin F/FBXO1 Interacts with HIV-1 Viral Infectivity Factor (Vif) and Restricts Progeny Virion Infectivity by Ubiquitination and Proteasomal Degradation of Vif Protein through SCFcyclin F E3 Ligase Machinery. (ebi.ac.uk)
- Thus, ASL interacts with cyclin A2 in cytoplasm, and may promote HCC formation through this non-enzymatic function. (ncku.edu.tw)
Cytoplasm2
- Cyclin A2 localises in the cytoplasm at the S/G2 transition to activate PLK1. (scilifelab.se)
- We found that ASL interacted with cyclin A2 in HCC cells and the localization of their interaction was in the cytoplasm. (ncku.edu.tw)
Cdks1
- The temporal expression of cyclins is tightly regulated and subsequently plays a critical role in controlling the enzymatic activity of cdks. (fishersci.com)
Somatic5
- It is one of the two types of cyclin A: cyclin A1 is expressed during meiosis and embryogenesis while cyclin A2 is expressed in dividing somatic cells. (wikipedia.org)
- In mammalian somatic cells, cyclin A is required for S-phase and passage through G2-phase. (fishersci.com)
- In humans, there are two A-type cyclins - an embryonic-specific cyclin A1 and a somatic cyclin A2. (mybeckman.com.br)
- Cyclin A1 is only expressed in meiosis and very early embryos, whereas cyclin A2 is present in proliferating somatic cells. (mybeckman.com.br)
- Cyclin A2 is expressed in dividing somatic cells. (wikipedia.org)
Overexpression of cyclin2
- Overexpression of cyclin A2 in mammalian cells can result in the delayed onset of metaphase and anaphase. (wikipedia.org)
- WTAP knockdown induced G 2 accumulation, which is partially rescued by adenoviral overexpression of cyclin A2. (elsevier.com)
Pathway2
- CONCLUSIONS- Cyclin A2 is required for β-cell proliferation, exendin-4 stimulates cyclin A2 expression via the cAMP pathway, and exendin-4 stimulation of cAMP requires PDX-1. (diabetesjournals.org)
- Once cyclin B is activated, cyclin A is no longer needed and is subsequently degraded through the ubiquitin pathway. (wikipedia.org)
Specificity1
- Clk/Sty was initially cloned as a cyclin-dependent kinase (CDK)-like kinase by PCR ( 4 , 5 ), as well as a dual specificity kinase in an expression screening ( 6 - 8 ). (aacrjournals.org)
Species2
- Few other monoclonal antibodies other than E67.1 are able to immunoprecipitate active CDK/Cyclin A H1 kinase from such a wide range of species. (abcam.com)
- Cross reactivity with Cyclin A from other species may also occur. (abcam.co.jp)
CDK42
- Recent reports have shown that adult cardiac myocytes can be induced to reenter into cell cycle with periostin ( 17 ), p38 MAP kinase inhibitor ( 8 ), cyclin D1/CDK4 ( 27 ), cyclin A2 ( 3 ), and transforming growth factor-β ( 4 ). (physiology.org)
- Temporal distribution of CDK4, CDK6, D-type cyclins, and p27 in developing mouse oocytes. (muni.cz)
Expression17
- Increased expression of cyclin A2 has been observed in many types of cancer such as breast, cervical, liver, and lung among others. (wikipedia.org)
- While it is not clear whether increased expression of cyclin A2 is a cause or result of tumorigenesis, it is indicative of prognostic values such as predictions of survival or relapse. (wikipedia.org)
- Mutation or disruption of normal cyclin A expression causes cells to arrest in G2-phase. (fishersci.com)
- Different cyclins exhibit distinct expression and degradation patterns which contribute to the temporal coordination of each mitotic event. (genetex.com)
- Here, we report that HDAC10 regulates the cell cycle via modulation of cyclin A2 expression, and cyclin A2 overexpression rescues HDAC10 knockdown-induced G 2 /M transition arrest. (asm.org)
- Loss of HDAC1 and -2 induces expression of these cyclin-dependent kinase (CDK) inhibitors, leading to a cell cycle block in G 1 . (asm.org)
- Moreover, Cyclin A2 expression is lower in metastases relative to primary colon adenocarcinoma in matched human tumors. (cnrs.fr)
- Expression of predominately cytoplasmic Cyclin A2 or phospho-mimicking PLK1 T210D can partially rescue a G2 arrest caused by Cyclin A2 depletion. (scilifelab.se)
- Our laboratory has previously demonstrated that arginine metabolic enzyme argininosuccinate lyase (ASL) promoted HCC formation in part via maintenance of cyclin A2 protein expression and arginine production for channeling to nitric oxide synthase. (ncku.edu.tw)
- Although all three siRNAs could reduce the cyclin A2 expression, siRNA , appeared to be the most effective. (bvsalud.org)
- In contrast, although cyclin A2 expression in HSF reduced by nearly 60% after treatment by siRNA1 for 48h, these cells exhibited only a slight change in cell cycling, and neither clear inhibition of proliferation nor impaired colony forming ability was observed. (bvsalud.org)
- Ablation of acinus or SRPK2 abrogates cyclin A1 expression in leukemia cells and arrest cells at G 1 phase. (aacrjournals.org)
- Furthermore, both SRPK2 and acinus are overexpressed in some human acute myelogenous leukemia patients and correlate with elevated cyclin A1 expression levels, fitting with the oncogenic activity of cyclin A1 in leukemia. (aacrjournals.org)
- YTHDC2-deficient male germ cells enter meiosis but have a mixed identity, maintaining expression of Cyclin A2 and failing to properly express many meiotic markers. (elifesciences.org)
- This is not due to disparate biochemical capabilities but rather to tissue-specific expression patterns, since each D cyclin appears to be capable of substituting for the other ( 4 , 10 , 32 , 33 ). (asm.org)
- In OPCs, the expression pattern of Sox17, cyclin D1, and secreted Frizzled-related protein-1 in the presence of platelet-derived growth factor (PDGF) was coordinately accelerated by addition of thyroid hormone, indicating differentiation-induced regulation of Sox17 targets. (jneurosci.org)
- These results indicate that Sox17 suppresses cyclin D1 expression and cell proliferation by directly antagonizing β-catenin, whose activity in OPCs is stimulated not only by Wnt3a, but also by PDGF. (jneurosci.org)
Human8
- This would place the epitope within the region spanning amino acids 144 - 148 of human Cyclin A2. (abcam.com)
- It recognizes a protein of 54kDa, which is identified as cyclin A. Its epitope is located amino acids 144-148 of human Cyclin A2. (fishersci.com)
- Recombinant protein encompassing a sequence within the center region of human Cyclin A2. (genetex.com)
- 66391-1-Ig targets Cyclin A2 in WB, IHC, IF,ELISA applications and shows reactivity with human samples. (ptglab.com)
- Antiserum will specifically react with a 60 kDa Cyclin A2 protein from human, rat and mouse tissue. (abcam.co.jp)
- Synthetic peptide corresponding to Human Cyclin A2. (abcam.co.jp)
- The alternative splicing of human cyclin A2 has not yet been studied. (duhnnae.com)
- Human cyclin F was originally isolated as a cDNA capable of suppressing the temperature sensitivity of a Saccharomyces cerevisiae cdc4 - 1 mutant. (asm.org)
Chromosomes2
- In Ythdc2 -/- testes, germ cells attempt to enter meiotic prophase, but fail to properly express many meiotic markers, continue to express Cyclin A2, rapidly condense their chromosomes and initiate an aberrant mitotic-like division before undergoing apoptosis. (elifesciences.org)
- Once the nuclear envelope has broken down, cyclin A is rapidly destroyed, while cyclin B1 associates with the condensed chromosomes and the spindle apparatus and is stabilized by the spindle checkpoint ( Pines and Hunter, 1991 ). (rupress.org)
Found that cyclin1
- We found that cyclin A2 decreases in prometaphase I but recovers after the first meiotic division and persists, uniquely for metaphase, in MII-arrested oocytes. (edu.au)
Deletion of cyclin2
- Conditional deletion of cyclin A2 from mouse oocytes has no discernible effect on MI but leads to disrupted MII spindles and increased merotelic attachments. (edu.au)
- Tissue-specific deletion of cyclin F revealed that it was not required for the development and function of a number of different embryonic and adult tissues. (asm.org)
Binds4
- Unexpectedly, cyclin A2 controlled Mre11 abundance through a C-terminal RNA binding domain that selectively and directly binds Mre11 transcripts to mediate polysome loading and translation. (sciencemag.org)
- Here, we show that SRPK2 binds and phosphorylates acinus, an SR protein essential for RNA splicing, and redistributes it from the nuclear speckles to the nucleoplasm, resulting in cyclin A1 but not A2 up-regulation. (aacrjournals.org)
- Depending on which CDK partner cyclin A binds, the cell will continue through the S phase or it will transition from G2 to the M phase. (wikipedia.org)
- Cyclin A binds to the mitotic spindle poles in the centrosome however, the mechanism by which the complex is shuttled to the centrosome is not well understood. (wikipedia.org)
Complexes2
- These cyclin/cdk complexes are essential for passage through specific stages in the cell cycle. (fishersci.com)
- In addition, cyclin A has been implicated in cell transformation and is found in complexes with E1A, transcription factors DRTF1 and E2F and retinoblastoma protein, p110. (acris-antibodies.com)
Antigen1
- Hunt T. Simian virus 40 large T antigen associates with cyclin A and p33cdk2. (biotium.com)
Transition4
- Cyclin A2 is involved in the G2/M transition but it cannot independently form a maturation promoting factor (MPF). (wikipedia.org)
- Cyclin which controls both the G1/S and the G2/M transition phases of the cell cycle. (sdsc.edu)
- We find no evidence that such mechanisms involve G2 feedback loops and suggest that cytoplasmic appearance of Cyclin A2 at the S/G2 transition functions as a trigger for mitotic kinase activation. (scilifelab.se)
- Cyclin A has been shown to play a crucial role in the G2/M transition in Drosophila and Xenopus embryos. (wikipedia.org)
Dependent4
- In addition to suggesting that cyclin A2 insufficiency promotes tumorigenesis, these findings reveal a previously undescribed function for a cyclin as an RNA-binding protein in addition to its CDK-dependent functions. (aacrjournals.org)
- It has been proposed that endoreduplication is regulated at its entry by mitotic cyclin-dependent kinase activity. (plantcell.org)
- Structure-based design of a potent purine-based cyclin-dependent kinase inhibitor. (cathdb.info)
- Loss-of-function studies in mice have proven particularly useful in understanding specific roles carried out by cyclins and the tissues which are exquisitely dependent upon their activity. (asm.org)
Regulation4
- Cyclin A2 plays a key role in cell cycle regulation. (cnrs.fr)
- Consistent with this, Cyclin A2 depletion enhances migration of fibroblasts and invasiveness of transformed cells via down-regulation of RhoA activity. (cnrs.fr)
- One such regulatory component is cyclin A which plays a role in the regulation of two different cell cycle stages. (wikipedia.org)
- In contrast, MEFs lacking cyclin F, while viable, do exhibit cell cycle defects, including reduced population-doubling time and a delay in cell cycle reentry from quiescence, indicating that cyclin F plays a role in cell cycle regulation. (asm.org)
Inhibitor3
- RESEARCH DESIGN AND METHODS- Changes in islet protein levels of cyclins and of two critical cell cycle regulators cyclin kinase inhibitor p27 and S-phase kinase-associated protein 2 (Skp2) were assessed in mice treated with exendin-4 and in a mouse model with specific upregulation of nuclear cAMP signaling exhibiting increased β-cell proliferation (CBP-S436A mouse). (diabetesjournals.org)
- The CDC6 bispeptide was a potent inhibitor competitive with both ATP and peptide substrate of pCDK2/cyclin A activity against a heptapeptide substrate (Ki = 0.83 nm) but less effective against RXL-containing substrates. (rcsb.org)
- This protein associates with and regulated by other subunits of the complex including cyclin A or E, CDK inhibitor p21Cip1 (CDKN1A), and p27Kip1 (CDKN1B). (nih.gov)
Knockdown2
- In Min6 cells, cyclin A2 knockdown prevented exendin-4-stimulated proliferation. (diabetesjournals.org)
- PDX-1 knockdown reduced exendin-4-stimulated cAMP synthesis and cyclin A2 transcription. (diabetesjournals.org)
Mice5
- It is unique in its control at two major transitions of the cell cycle and is the only cyclin that is completely silenced after birth in mice, rats and humans. (rxpgnews.com)
- We found that mutant mice that cannot elevate cyclin A2 are chromosomally unstable and tumor-prone. (sciencemag.org)
- Moreover, WTAP-null mice exhibited proliferative failure with death resulting at approximately embryonic day 6.5, an etiology almost identical to cyclin A2-null mice. (elsevier.com)
- Since its initial discovery, homologues of cyclin A have been identified in numerous eukaryotes including Drosophila, Xenopus, mice, and in humans but has not been found in lower eukaryotes like yeast. (wikipedia.org)
- The fact that mice lacking two D cyclins exhibit more exacerbated phenotypes in certain tissues than the mice lacking either cyclin D alone also supports the notion that they have similar biochemical functions ( 4 ). (asm.org)
Germ cells2
- In contrast to cyclin A1, which is present only in germ cells, this cyclin is expressed in all tissues tested. (genetex.com)
- A second form of cyclin A, named cyclin A1 because of its high sequence homology to Xenopus cyclin A1, is most highly expressed in germ cells. (acris-antibodies.com)
Transcription2
- Cyclin A2 transcription is mostly regulated by the transcription factor E2F and begins in G1, after the R point. (wikipedia.org)
- After the R point, pRb is phosphorylated and can no longer bind E2F, leading to cyclin A2 transcription. (wikipedia.org)
Meiosis1
- Cyclin A1 is prevalently expressed during meiosis and early on in embryogenesis. (wikipedia.org)
Amino acids1
- Cyclin A2 is a 48 kDa protein composed of 432 amino-acids. (mybeckman.com.br)