Chromatin Assembly Factor-1
Chromatin
Chromatin Assembly and Disassembly
Chromosomal Proteins, Non-Histone
Retinoblastoma-Binding Protein 4
Histones
Nucleosomes
Molecular Chaperones
Retinoblastoma-Binding Protein 7
DNA-Binding Proteins
Saccharomyces cerevisiae Proteins
Proliferating Cell Nuclear Antigen
Heterochromatin
Saccharomyces cerevisiae
Nucleosome Assembly Protein 1
Cell Cycle Proteins
Nuclear Proteins
Histone Acetyltransferases
Protein Binding
S Phase
HeLa Cells
Gene Silencing
Mutation
Molecular Sequence Data
Cell Nucleus
DNA Damage
Amino Acid Sequence
Apc5 Subunit, Anaphase-Promoting Complex-Cyclosome
Nucleoplasmins
Chromatin Immunoprecipitation
Transcription, Genetic
DNA, Superhelical
Micrococcal Nuclease
Ribosome Subunits, Large, Eukaryotic
DNA
Centromere
Transcription Factors
Protein Subunits
Protein Structure, Tertiary
Gene Expression Regulation, Fungal
Base Sequence
Virus Assembly
Acetyltransferases
Mitosis
Binding Sites
Repressor Proteins
Promoter Regions, Genetic
Drosophila Proteins
Two-Hybrid System Techniques
Xenopus laevis
Drosophila
Adenosine Triphosphatases
Models, Biological
Sequence Homology, Amino Acid
Electron Transport Complex I
Xenopus
DNA Repair
Macromolecular Substances
Yeasts
Cell Cycle
Models, Molecular
Histone Deacetylases
Mitochondrial Diseases
Epigenesis, Genetic
Gene Deletion
Plasmids
Deoxyribonuclease I
Electron Transport Complex IV
Methanococcales
Replication-dependent marking of DNA by PCNA facilitates CAF-1-coupled inheritance of chromatin. (1/113)
Chromatin assembly factor 1 (CAF-1) is required for inheritance of epigenetically determined chromosomal states in vivo and promotes assembly of chromatin during DNA replication in vitro. Herein, we demonstrate that after DNA replication, replicated, but not unreplicated, DNA is also competent for CAF-1-dependent chromatin assembly. The proliferating cell nuclear antigen (PCNA), a DNA polymerase clamp, is a component of the replication-dependent marking of DNA for chromatin assembly. The clamp loader, replication factor C (RFC), can reverse this mark by unloading PCNA from the replicated DNA. PCNA binds directly to p150, the largest subunit of CAF-1, and the two proteins colocalize at sites of DNA replication in cells. We suggest that PCNA and CAF-1 connect DNA replication to chromatin assembly and the inheritance of epigenetic chromosome states. (+info)WD repeats of the p48 subunit of chicken chromatin assembly factor-1 required for in vitro interaction with chicken histone deacetylase-2. (2/113)
Chromatin assembly factor-1 (CAF-1) is essential for chromatin assembly in eukaryotes, and comprises three subunits of 150 kDa (p150), 60 kDa (p60), and 48 kDa (p48). We cloned and sequenced cDNA encoding the small subunit of the chicken CAF-1, chCAF-1p48. It consists of 425 amino acid residues including a putative initiation Met, possesses seven WD repeat motifs, and contains only one amino acid change relative to the human and mouse CAF-1p48s. The immunoprecipitation experiment followed by Western blotting revealed that chCAF-1p48 interacts with chicken histone deacetylases (chHDAC-1 and -2) in vivo. The glutathione S-transferase pulldown affinity assay revealed the in vitro interaction of chCAF-1p48 with chHDAC-1, -2, and -3. We showed that the p48 subunit tightly binds to two regions of chHDAC-2, located between amino acid residues 82-180 and 245-314, respectively. We also established that two N-terminal, two C-terminal, or one N-terminal and one C-terminal WD repeat motif of chCAF-1p48 are required for this interaction, using deletion mutants of the respective regions. These results suggest that chCAF-1p48 is involved in many aspects of DNA-utilizing processes, through alterations in the chromatin structure based on both the acetylation and deacetylation of core histones. (+info)Chromatin replication: Finding the right connection. (3/113)
Nucleosomes are preferentially assembled on replicating DNA by chromatin assembly factor 1; recent studies have shown that replicated DNA is marked for assembly into chromatin by the replication-fork-associated protein PCNA. (+info)Chromatin assembly during DNA replication in somatic cells. (4/113)
Newly replicated DNA is assembled into chromatin through two principle pathways. Firstly, parental nucleosomes segregate to replicated DNA, and are transferred directly to one of the two daughter strands during replication fork passage. Secondly, chromatin assembly factors mediate de-novo assembly of nucleosomes on replicating DNA using newly synthesized and acetylated histone proteins. In somatic cells, chromatin assembly factor 1 (CAF-1) appears to be a key player in assembling new nucleosomes during DNA replication. It provides a molecular connection between newly synthesized histones and components of the DNA replication machinery during the S phase of the cell division cycle. (+info)Heterochromatin dynamics in mouse cells: interaction between chromatin assembly factor 1 and HP1 proteins. (5/113)
Mechanisms contributing to the maintenance of heterochromatin in proliferating cells are poorly understood. We demonstrate that chromatin assembly factor 1 (CAF-1) binds to mouse HP1 proteins via an N-terminal domain of its p150 subunit, a domain dispensable for nucleosome assembly during DNA replication. Mutations in p150 prevent association with HP1 in heterochromatin in cells that are not in S phase and the formation of CAF-1-HP1 complexes in nascent chromatin during DNA replication in vitro. We suggest that CAF-1 p150 has a heterochromatin-specific function distinct from its nucleosome assembly function during S phase. Just before mitosis, CAF-1 p150 and some HP1 progressively dissociate from heterochromatin concomitant with histone H3 phosphorylation. The HP1 proteins reassociate with chromatin at the end of mitosis, as histone H3 is dephosphorylated. (+info)Duplication and maintenance of heterochromatin domains. (6/113)
To investigate the mechanisms that assure the maintenance of heterochromatin regions, we took advantage of the fact that clusters of heterochromatin DNA replicate late in S phase and are processed in discrete foci with a characteristic nuclear distribution. At the light microscopy level, within these entities, we followed DNA synthesis, histone H4 acetylation, heterochromatin protein 1 (Hp1alpha and -beta), and chromatin assembly factor 1 (CAF-1). During replication, Hp1alpha and -beta domains of concentration are stably maintained, whereas heterochromatin regions are enriched in both CAF-1 and replication-specific acetylated isoforms of histone H4 (H4Ac 5 and 12). We defined a time window of 20 min for the maintenance of this state. Furthermore, treatment with Trichostatin A (TSA), during and after replication, sustains the H4Ac 5 and 12 state in heterochromatin excluding H4Ac 8 and 16. In comparison, early replication foci, at the same level, did not display any specific enrichment in H4Ac 5 and 12. These data emphasize the specific importance for heterochromatin of the replication-associated H4 isoforms. We propose that perpetuation of heterochromatin involves self-maintenance factors, including local concentration of Hp1alpha and -beta, and that a degree of plasticity is provided by the cycle of H4 acetylation/deacetylation assisted by CAF-1. (+info)A CAF-1-PCNA-mediated chromatin assembly pathway triggered by sensing DNA damage. (7/113)
Sensing DNA damage is crucial for the maintenance of genomic integrity and cell cycle progression. The participation of chromatin in these events is becoming of increasing interest. We show that the presence of single-strand breaks and gaps, formed either directly or during DNA damage processing, can trigger the propagation of nucleosomal arrays. This nucleosome assembly pathway involves the histone chaperone chromatin assembly factor 1 (CAF-1). The largest subunit (p150) of this factor interacts directly with proliferating cell nuclear antigen (PCNA), and critical regions for this interaction on both proteins have been mapped. To isolate proteins specifically recruited during DNA repair, damaged DNA linked to magnetic beads was used. The binding of both PCNA and CAF-1 to this damaged DNA was dependent on the number of DNA lesions and required ATP. Chromatin assembly linked to the repair of single-strand breaks was disrupted by depletion of PCNA from a cell-free system. This defect was rescued by complementation with recombinant PCNA, arguing for role of PCNA in mediating chromatin assembly linked to DNA repair. We discuss the importance of the PCNA-CAF-1 interaction in the context of DNA damage processing and checkpoint control. (+info)Distinct importin recognition properties of histones and chromatin assembly factors. (8/113)
Synthesis of the protein components of nuclear chromatin occurs in the cytoplasm, necessitating specific import into the nucleus. Here, we report the binding affinities of the nuclear localisation sequence (NLS)-binding importin subunits for a range of histones and chromatin assembly factors. The results suggest that import of histones to the nucleus may be mediated predominantly by importin beta1, whereas the import of the other components probably relies on the conventional alpha/beta1 import pathway. Differences in recognition by importin beta1 were observed between histone H2A and the variant H2AZ, as well as between histone H3/4 with or without acetylation. The results imply that different histone variants may possess distinct nuclear import properties, with acetylation possibly playing an inhibitory role through NLS masking. (+info)Mitochondrial diseases can affect anyone, regardless of age or gender, and they can be caused by mutations in either the mitochondrial DNA (mtDNA) or the nuclear DNA (nDNA). These mutations can be inherited from one's parents or acquired during embryonic development.
Some of the most common symptoms of mitochondrial diseases include:
1. Muscle weakness and wasting
2. Seizures
3. Cognitive impairment
4. Vision loss
5. Hearing loss
6. Heart problems
7. Neurological disorders
8. Gastrointestinal issues
9. Liver and kidney dysfunction
Some examples of mitochondrial diseases include:
1. MELAS syndrome (Mitochondrial Myopathy, Encephalopathy, Lactic Acidosis, and Stroke-like episodes)
2. Kearns-Sayre syndrome (a rare progressive disorder that affects the nervous system and other organs)
3. Chronic progressive external ophthalmoplegia (CPEO), which is characterized by weakness of the extraocular muscles and vision loss
4. Mitochondrial DNA depletion syndrome, which can cause a wide range of symptoms including seizures, developmental delays, and muscle weakness.
5. Mitochondrial myopathy, encephalomyopathy, lactic acidosis, and stroke-like episodes (MELAS)
6. Leigh syndrome, which is a rare genetic disorder that affects the brain and spinal cord.
7. LHON (Leber's Hereditary Optic Neuropathy), which is a rare form of vision loss that can lead to blindness in one or both eyes.
8. Mitochondrial DNA mutation, which can cause a wide range of symptoms including seizures, developmental delays, and muscle weakness.
9. Mitochondrial myopathy, encephalomyopathy, lactic acidosis, and stroke-like episodes (MELAS)
10. Kearns-Sayre syndrome, which is a rare progressive disorder that affects the nervous system and other organs.
It's important to note that this is not an exhaustive list and there are many more mitochondrial diseases and disorders that can affect individuals. Additionally, while these diseases are rare, they can have a significant impact on the quality of life of those affected and their families.
Chromatin assembly factor 1
CHAF1B
RSF1
Barrier to autointegration factor 1
CHAF1A
Proliferating cell nuclear antigen
CSTF3
CBX1
CBX5 (gene)
MBD1
TLK1
TLK2
ASF1B
ASF1A
EHMT1
Deficiency of RbAp48 protein and memory loss
TOP3A
Bloom syndrome protein
Eukaryotic DNA replication
DBF4
Cell division cycle 7-related protein kinase
DNA replication factor CDT1
Chromatin remodeling
Nucleosome
Spindle apparatus
Chromatin
WAC protein domain
Bruce William Stillman
CAF
Phycodnaviridae
Caspase-activated DNase
Death-associated protein 6
Cell cycle
Short interspersed nuclear element
Glucocorticoid receptor
Sex-chromosome dosage compensation
Microtubule
Pre-replication complex
Epigenomics
Nuclear receptor coactivator 2
Mediator (coactivator)
H4K8ac
MCM6
Ubiquitin
PTK2
NEDD9
RNA-Seq
Cyclin-dependent kinase 1
MicroRNA
DNA repair
Valosin-containing protein
DNA mismatch repair
NEDD1
Exon junction complex
Nondisjunction
Nucleic acid quaternary structure
Survivin
HSV epigenetics
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Subunit9
- The p150 subunit of human CAF-1 contains an N-terminal domain (p150N) that is dispensable for histone deposition but promotes the localization of specific loci (nucleolar-associated domains [NADs]) and proteins to the nucleolus during interphase. (nih.gov)
- Co-Expression of Chromatin Assembly Factor 1 Subunit A and Proliferating Cell Nuclear Antigen Is a Prognostic Biomarker of Esophageal Cancer. (bvsalud.org)
- Chromatin assembly factor 1 subunit A (CHAF1A) was highly correlated with proliferating cell nuclear antigen ( PCNA ) expression in EC. (bvsalud.org)
- Complex subunit associated factors are involved in hybridoma growth, Eosinohils, eritroid proliferation and derived from promotor binding stimulating subunits on the DNA binding complex. (chromatine.com)
- 1. The Cac2 subunit is essential for productive histone binding and nucleosome assembly in CAF-1. (nih.gov)
- 9. The Cac1 subunit of histone chaperone CAF-1 organizes CAF-1-H3/H4 architecture and tetramerizes histones. (nih.gov)
- The 48 kDa subunit, RETINOBLASTOMA-BINDING PROTEIN 4 , is also a component of several other protein complexes involved in chromatin remodeling. (nih.gov)
- The gene Chromatin assembly factor 1 subunit is referred to in FlyBase by the symbol Dmel\Caf1 (CG42. (yeastrc.org)
- A member of the polyomavirus enhancer binding protein 2/core binding factor (PEBP2/CBF) is composed of PEBP2 alphaB1/AML1 (as the alpha subunit) and a beta subunit. (sdbonline.org)
Higher order chromatin structure2
Asf18
- 6. CAF-1-induced oligomerization of histones H3/H4 and mutually exclusive interactions with Asf1 guide H3/H4 transitions among histone chaperones and DNA. (nih.gov)
- 18. A link between Sas2-mediated H4 K16 acetylation, chromatin assembly in S-phase by CAF-I and Asf1, and nucleosome assembly by Spt6 during transcription. (nih.gov)
- CIA (CCG1-interacting factor A)/ASF1, which is the most conserved histone chaperone among the eukaryotes, was genetically identified as a factor for an anti-silencing function (Asf1) by yeast genetic screening. (proteopedia.org)
- Intensive studies have revealed that CIA/ASF1 mediates nucleosome assembly by forming a complex with another histone chaperone in human cells and yeast, and is involved in DNA replication, transcription, DNA repair and silencing/anti-silencing in yeast. (proteopedia.org)
- Despite all these biochemical and biological functional analyses, the structure-function relationship of the nucleosome assembly/disassembly activity of CIA/ASF1 has remained elusive. (proteopedia.org)
- The histone H3-H4 tetramer-disrupting activity of CIA/ASF1 and the crystal structure of the CIA/ASF1-histone-H3-H4 dimer complex should give insights into mechanisms of both nucleosome assembly/disassembly and nucleosome semi-conservative replication. (proteopedia.org)
- Mello JA, Sillje HH, Roche DM, Kirschner DB, Nigg EA, Almouzni G. Human Asf1 and CAF-1 interact and synergize in a repair-coupled nucleosome assembly pathway. (proteopedia.org)
- During her postdoctoral studies with Dr. James Kadonaga at the University of California, San Diego, she identified the key chromatin assembly factors Anti-silencing Function 1 (Asf1) and characterized Chromatin Assembly Factor 1 (CAF-1) from Drosophila. (longevity.international)
Histones5
- Chromatin assembly factor 1 (CAF-1) deposits histones during DNA synthesis. (nih.gov)
- 8. The N-terminal domains of histones H3 and H4 are not necessary for chromatin assembly factor-1- mediated nucleosome assembly onto replicated DNA in vitro. (nih.gov)
- 12. Nucleosome assembly by a complex of CAF-1 and acetylated histones H3/H4. (nih.gov)
- Proteins involved in the assembly and disassembly of HISTONES into NUCLEOSOMES. (umassmed.edu)
- 1 Once the identity of each new cell type has been established by lineage-specific transcription factors, this identity is maintained through unique alterations in the way in which the DNA encoding each gene becomes packaged around certain proteins (i.e., the histones) within the chromatin structure of the nucleus (Hemberger et al. (nih.gov)
Disassembly5
- ASF1A_HUMAN ] Histone chaperone that facilitates histone deposition and histone exchange and removal during nucleosome assembly and disassembly. (proteopedia.org)
- Nucleosome assembly factor, involved in chromatin assembly and disassembly, anti-silencing protein t. (yeastrc.org)
- Dr. Tyler's earlier work revealed that chromatin assembly and disassembly not only regulates S phase events, but also gene expression and the DNA damage response. (longevity.international)
- The center is combining bright photostable probes, super-resolution microscopy, and other physical and computational tools to investigate assembly, disassembly, and control of the DNA break-repair machine. (nih.gov)
- In achieving our short-term and long-term goals, it is critical to visualize the dynamics of assembly and disassembly of single NHEJ complexes in the nuclei of living cells, which is far beyond the limits of existing technology. (nih.gov)
Epigenetic7
- However, recent studies have revealed a complex involvement of epigenetic mechanisms in the regulation of gene expression, including methylation, chromatin modification and remodeling, and the diverse activities of non-coding RNAs. (nih.gov)
- 15. Nucleosome assembly factors CAF-1 and HIR modulate epigenetic switching frequencies in an H3K56 acetylation-associated manner in Candida albicans. (nih.gov)
- 17. Chromatin assembly factor 1 interacts with histone H3 methylated at lysine 79 in the processes of epigenetic silencing and DNA repair. (nih.gov)
- Our research has focused on understanding how signalling pathways control gene expression by epigenetic modulation of chromatin structure. (le.ac.uk)
- Epigenetic mechanisms allow specific gene expression outputs and involve DNA and histone modifications, including those associated with heterochromatin, a repressive form of chromatin. (nih.gov)
- The control of viral IE expression is complex with regulatory mechanisms involving multiple transcription factors, coactivators, elongation factors, and epigenetic machinery that converge to determine IE expression (Fig. 2). (nih.gov)
- the cell's identity then is maintained through epigenetic alterations in the way in which the DNA encoding each gene becomes packaged within the chromatin. (nih.gov)
Gene19
- The roles of gene methylation and miRNAs have been relatively well studied in melanoma, but other studies have shown that changes in chromatin status and in the differential expression of long non-coding RNAs can lead to altered regulation of key genes. (nih.gov)
- The gene TBP-associated factor 1 is referred to in FlyBase by the symbol Dmel\Taf1 (CG17603, FBgn001. (yeastrc.org)
- The VRK1 gene provides instructions for making a protein called VRK serine/threonine kinase 1. (medlineplus.gov)
- VRK serine/threonine kinase 1 has a particularly important role in regulating a transcription factor called p53 (which is produced from the TP53 gene). (medlineplus.gov)
- VRK1 gene mutations cause a small percentage of all cases of a form of the disorder designated pontocerebellar hypoplasia type 1 (PCH1). (medlineplus.gov)
- The VRK1 gene mutations that cause PCH1A significantly reduce the amount of VRK serine/threonine kinase 1 produced in cells. (medlineplus.gov)
- The VRK1 gene mutations associated with this disorder change single protein building blocks (amino acids) in VRK serine/threonine kinase 1. (medlineplus.gov)
- In the fusion protein, the AML-1 runt homology domain, which is responsible for DNA binding and CBF beta interaction, is linked to ETO, a gene of unknown function. (sdbonline.org)
- Previous work from the laboratory has revealed mechanistic and structural insights into how the interplay between cellular signalling, TF activation and coassembly on transcriptional enhancers controls gene expression (Fig. 1). (le.ac.uk)
- CBP/p300 also acetylate chromatin and ultimately, in conjunction with remodellers and histone chaperones, makes chromatin permissive for gene transcription. (le.ac.uk)
- How does chromatin modification direct nucleosome remodelling and gene regulation? (le.ac.uk)
- NLRC5 cooperates with the RFX transcription factor complex to induce MHC class I gene expression. (harvard.edu)
- Strategies for studying gene regulation mechanisms have changed dramatically over the past several years in light of the emergence of complete genome sequences for many organisms as well as the development of or improvements to technologies such as chromatin immunoprecipitation, RNA interference, microarrays, and proteomics. (cshlpress.com)
- In addition to a new chapter on the in vitro analysis of chromatin templates for DNA-binding studies and transcription, this second edition has been extensively rewritten and updated to discuss new advances in the field and their impact on gene regulation mechanisms. (cshlpress.com)
- The second edition retains the approach of the first in covering both the conceptual and practical aspects of how to study the regulation of a newly isolated gene and the biochemistry of a new transcription factor. (cshlpress.com)
- We are continuing to investigate mechanisms of heterochromatin assembly that are expected to have major implications for understanding gene regulatory processes in higher eukaryotes. (nih.gov)
- Two key findings are: (1) the RNA degradation/facultative heterochromatin assembly machinery is a central regulator of TOR-mediated control of cell proliferation and (2) TORC1 dynamically controls RNA elimination machinery to modulate facultative heterochromatin and coordinate developmental gene expression during gametogenesis, an extremely important process that ensures the genomic integrity of future generations and lies at the heart of many heritable human disorders. (nih.gov)
- IE gene products are important for the expression of subsequent waves of viral gene expression whose proteins mediate viral genome replication and final assembly-packaging of progeny viruses. (nih.gov)
- and recruitment of factors required for efficient IE gene transcriptional elongation (Fig. 2). (nih.gov)
Budding yeast2
- 13. The Ddc1-Mec3-Rad17 sliding clamp regulates histone-histone chaperone interactions and DNA replication-coupled nucleosome assembly in budding yeast. (nih.gov)
- Her research focuses on the regulation of genomic processes by chromatin structure and mechanisms of replicative aging, using budding yeast as a model system for the aging of stem cells in humans. (longevity.international)
Regulate2
- In addition, RanBP1 complex formation competes with chromatin binding to regulate the distribution of RCC1 between the chromatin-associated and soluble fractions. (nih.gov)
- Thus, these mutational analyses define the regions of AML-1/ETO that regulate its function and that may be important in promoting leukemia (Lenny, 1995). (sdbonline.org)
Regulation2
- Answers to some of these questions are expected to contribute to our understanding of chromatin regulation and dysregulation in disease. (le.ac.uk)
- 2010). Three enzymatic mechanisms control the assembly and regulation of chromatin structure: DNA methylation, modification of the histone proteins (i.e., posttranslational histone modification), and ATP-dependent chromatin remodeling (Barrero et al. (nih.gov)
Protein complexes involved1
- It is present in protein complexes involved in histone acetylation and chromatin assembly. (nih.gov)
Regulates2
- This protein regulates several transcription factors, which are proteins that control the activity of genes by attaching (binding) to specific regions of DNA. (medlineplus.gov)
- An activating transcription factor that regulates expression of a variety of genes including C-JUN GENES and TRANSFORMING GROWTH FACTOR BETA2. (harvard.edu)
Chaperones1
- Kaufman P. Histone chaperones and chromatin assembly. (umassmed.edu)
Subunits3
- Aplha, transcription related growth factors and stimulating factors or repressing nuclear factors are complex subunits of proteins involved in cell differentiation. (chromatine.com)
- Each of the two human genes encoding the alpha and beta subunits of a heterodimeric transcription factor, PEBP2, has been found at the breakpoints of two characteristic chromosome translocations associated with acute myeloid leukemia, suggesting that they are candidate proto-oncogenes. (sdbonline.org)
- Arabidopsis thaliana mutants in FAS1 and FAS2 subunits of chromatin assembly factor 1 (CAF1) show progressive loss of 45S rDNA copies and telomeres. (omicsdi.org)
Complexes7
- 3. DNA-mediated association of two histone-bound complexes of yeast Chromatin Assembly Factor-1 (CAF-1) drives tetrasome assembly in the wake of DNA replication. (nih.gov)
- Assembly of prototype foamy virus strand transfer complexes on product DNA bypassing catalysis of integration. (nih.gov)
- We found that RCC1 not associated with chromosomes during mitosis is sequestered and inhibited in RCC1/Ran/RanBP1 heterotrimeric complexes and that the sequestration is crucial for normal mitotic spindle assembly. (nih.gov)
- It is now clear that while mammalian genomes encode genetic information in their linear sequence, the appropriate cell type specific expression of their genes depends on higher order nuclear organization, from the folding of chromosomes into three-dimensional structures, to chromatin loops that connect genes and transcriptional regulatory complexes, to larger chromosomal domains and nuclear compartments. (nih.gov)
- Higher-order transcription factor complexes such as the enhanceosome frequently recruit the co-activators CBP/p300. (le.ac.uk)
- How do these signalling pathways lead to assembly of higher-order transcriptional regulatory complexes? (le.ac.uk)
- How does assembly of such regulatory complexes ultimately lead to chromatin acetylation, a modification found on active chromatin? (le.ac.uk)
Regulatory2
- Defining chromatin interactions and the ways in which nuclear architecture constrains/enables interactions, and describing the relationships of genomic regions to transcription, RNA processing and chromatin regulatory machineries, is likely to reveal how individual cells access, read and interpret genetic information. (nih.gov)
- Rando OJ, Robert F, Winston F. Control of chromatin structure by spt6: different consequences in coding and regulatory regions. (umassmed.edu)
Mechanisms4
- 1. Differential clearance mechanisms, neutrophil extracellular trap degradation and phagocytosis, are operative in systemic lupus erythematosus patients with distinct autoantibody specificities. (nih.gov)
- Our work also led to the discovery of RNA-based mechanisms of heterochromatin assembly, including RNAi that utilizes small interfering RNAs (siRNAs) to target heterochromatin. (nih.gov)
- RNA-based mechanisms of heterochromatin assembly are conserved in higher eukaryotes and have broad implications for human biology and disease. (nih.gov)
- Our lab has discovered two distinct RNA-based mechanisms that direct the assembly of heterochromatin. (nih.gov)
Cooperates2
- Cooperates with chromatin assembly factor 1 (CAF-1) to promote replication-dependent chromatin assembly and with HIRA to promote replication-independent chromatin assembly. (proteopedia.org)
- We have also uncovered an RNAi-independent mechanism in which a nuclear RNA processing complex (named MTREC) cooperates with RNA polymerase II termination factors to direct the assembly of facultative heterochromatin domains under specific growth conditions. (nih.gov)
Genes4
- We are using CRISPR/Cas9 to construct cell lines in which sequences encoding AIDs are inserted into both alleles of targeted genes of human tissue-culture cells that stably express the Transport Inhibitor Response 1 (TIR1) protein. (nih.gov)
- Genes & Development, 31 (1). (unibas.ch)
- Our work has led to the finding that heterochromatin assembly factors are part of a rheostat-like buffering mechanism that limits the uncontrolled expression of a wide variety of genes in response to environmental change. (nih.gov)
- This prevents both the subsequent translocation of NICD to the nucleus to form a transcription factor complex and the expression of Notch-regulated genes. (nih.gov)
Nucleosomes1
- Nucleosomes wrap and compact DNA into chromatin, limiting DNA accessibility to the cellular machineries which require DNA as a template. (proteopedia.org)
Apoptosis1
- Required for normal assembly of microtubules during apoptosis. (string-db.org)
Chromosomes1
- Chromatin is the complex of DNA and protein that packages DNA into chromosomes. (medlineplus.gov)
Vitro1
- RanBP1 is a highly conserved Ran-GTP-binding protein, which acts as co-activator of RanGAP1 (Ran GTPase-Activating Protein 1) and can form a heterotrimeric complex with Ran and RCC1 in vitro . (nih.gov)
Chromosome2
- In cells, the conversion of Ran-GDP to Ran-GTP is catalyzed by a Ran-specific guanine exchange factor called RCC1 (regulator of chromosome condensation 1) in vertebrates. (nih.gov)
- The CPC complex has essential functions at the centromere in ensuring correct chromosome alignment and segregation and is required for chromatin-induced microtubule stabilization and spindle assembly. (string-db.org)
Polymerase1
- Here, using single-molecule tracking of RNA polymerase I (Pol I) and chromatin-bound upstream binding factor (UBF), we reveal suppression of transcription with phase separation. (omicsdi.org)
Genomic1
- The identification of such selection entails the detection of genomic variants that show unexpectedly high population differentiation or deviation from the prevalent haplotype structure [1] - [6] . (plos.org)
Mitosis3
- Dephosphorylation of barrier-to-autointegration factor by protein phosphatase 4 and its role in cell mitosis. (nih.gov)
- During mitosis, after nuclear envelope breakdown, Ran-GTP is concentrated in the region close to mitotic chromatin, while Ran-GDP is the major form distal to chromatin. (nih.gov)
- The capacity of RCC1 to bind to chromatin establishes the asymmetrical distribution of Ran-GTP in interphase as well as the chromatin-centered Ran-GTP gradient in mitosis. (nih.gov)
Nuclear6
- 11. Antibodies against High Mobility Group Box protein-1 (HMGB1) versus other anti-nuclear antibody fine-specificities and disease activity in systemic lupus erythematosus. (nih.gov)
- Ran is a Ras-family GTPase that plays critical roles in many cellular processes, including nucleo-cytoplasmic transport, nuclear envelope assembly, and mitotic spindle assembly. (nih.gov)
- Nuclear actin-related protein involved in chromatin remodeling, component of chromatin-remodeling en. (yeastrc.org)
- This protein is involved in the assembly of the nuclear envelope, which is a structure that surrounds the nucleus and acts as a barrier between the nucleus and the rest of the cell. (medlineplus.gov)
- Both the assembly of the nuclear envelope and the proper organization of chromatin are necessary for normal cell division. (medlineplus.gov)
- the role of specialized proteins and RNAs in the assembly, organization, and function of nuclear bodies, nuclear structures, and specialized subnuclear domains. (nih.gov)
Drosophila1
- Shortly after that, the CIA-histone-H3-H4 complex was isolated from Drosophila as a histone chaperone CAF-1 stimulator. (proteopedia.org)
Arabidopsis1
- 14. AtMCM10 promotes DNA replication-coupled nucleosome assembly in Arabidopsis. (nih.gov)
Nucleosome assembly2
Spindle assembly3
- The Ran-GTP gradient guides mitotic spindle assembly by releasing spindle assembly factors (SAFs) from karyopherins based on local Ran-GTP concentrations. (nih.gov)
- Spindle assembly factor required for normal assembly of mitotic spindles. (string-db.org)
- Required for central/midzone spindle assembly and cleavage furrow formation. (string-db.org)
Initiation factor3
- Human CIA-I/II (ASF1a/b) was identified as a histone chaperone that interacts with the bromodomain-an acetylated-histone-recognizing domain-of CCG1, in the general transcription initiation factor TFIID. (proteopedia.org)
- Umehara T, Horikoshi M. Transcription initiation factor IID-interactive histone chaperone CIA-II implicated in mammalian spermatogenesis. (proteopedia.org)
- The cap droplet excluded an initiation factor, ensuring robust silencing. (omicsdi.org)
Epidermal growth f1
- therapeutic_agents C1909 therapeutic_agents C C177537 GDC Value Terminology C116377 Osimertinib A third-generation, orally available, irreversible, mutant-selective, epidermal growth factor receptor (EGFR) inhibitor, with potential antineoplastic activity. (nih.gov)
Complex3
- It is part of the Mi-2 complex which has been implicated in chromatin remodeling and transcriptional repression associated with histone deacetylation. (nih.gov)
- Cryo-EM structures and atomic model of the HIV-1 strand transfer complex intasome. (nih.gov)
- Esa1p-associated factor, nonessential component of the NuA4 acetyltransferase complex, homologous to. (yeastrc.org)
Structure1
- Nucleoprotein Intermediates in HIV-1 DNA Integration: Structure and Function of HIV-1 Intasomes. (nih.gov)
Histone chaperone1
- Munakata T, Adachi N, Yokoyama N, Kuzuhara T, Horikoshi M. A human homologue of yeast anti-silencing factor has histone chaperone activity. (proteopedia.org)
Nucleus1
- VRK serine/threonine kinase 1 stabilizes and activates the p53 protein and controls the levels of p53 in the nucleus. (medlineplus.gov)
Saccharomyces1
- 11. Ultraviolet radiation sensitivity and reduction of telomeric silencing in Saccharomyces cerevisiae cells lacking chromatin assembly factor-I. (nih.gov)
20181
- Stark et al Sci Adv. 2018 Aug 1;4(8):eaat5107. (addgene.org)
Metabolism1
- These factors include proteins involved in DNA maintenance, protein turnover, RNA metabolism, chromatin organisation and the post-translational modifiers SUMO1 and SUMO2/3. (omicsdi.org)
Replication2
Interference1
- C-terminal deletion mutants of AML-1/ETO indicate that ETO sequences are essential for interference with AML-1B-mediated transcriptional activation, and that residue 540 defines the C-terminal boundary of a potential repression domain. (sdbonline.org)
Interactions1
- For example, ethanol exposure disrupts cellular migration, changes cell-cell interactions, and alters growth factor signaling pathways. (nih.gov)
Heterochromatin1
- Over more than two decades, our lab has been delineating highly conserved heterochromatin assembly pathways. (nih.gov)
Organization1
- VRK serine/threonine kinase 1 is also thought to play a role in the organization of chromatin. (medlineplus.gov)
Genetics1
- Focus on the RNA Pathology and Therapy Nikolaos P. Mastroyiannopoulos, Andrie Koutsoulidou and Leonidas A. Phylactou * Department of Molecular Genetics, Function & Therapy, The Cyprus Institute of Neurology & Genetics, Cyprus 1. (vdocuments.net)
SERINE4
- VRK serine/threonine kinase 1 plays a critical role in directing cell growth and division. (medlineplus.gov)
- Studies suggest that VRK serine/threonine kinase 1 has several additional functions. (medlineplus.gov)
- Researchers speculate that VRK serine/threonine kinase 1 may be involved in the development and maintenance of the nervous system, but its role is not well understood. (medlineplus.gov)
- It is also unknown why the effects of these mutations appear to be limited to the nervous system, as VRK serine/threonine kinase 1 is active in many of the body's cells and tissues. (medlineplus.gov)
Embryonic1
- An extensive requirement for transcription factor IID-specific TAF-1 in Caenorhabditis elegans embryonic transcription. (umassmed.edu)
Coactivator1
- A particular emphasis has been on the roles of the cellular transcriptional coactivator HCF-1 during the initiation of lytic infection and reactivation from latency. (nih.gov)