ADP-ribosyl Cyclase: A membrane-bound or cytosolic enzyme that catalyzes the synthesis of CYCLIC ADP-RIBOSE (cADPR) from nicotinamide adenine dinucleotide (NAD). This enzyme generally catalyzes the hydrolysis of cADPR to ADP-RIBOSE, as well, and sometimes the synthesis of cyclic ADP-ribose 2' phosphate (2'-P-cADPR) from NADP.Antigens, CD38: A bifunctional enzyme that catalyzes the synthesis and HYDROLYSIS of CYCLIC ADP-RIBOSE (cADPR) from NAD+ to ADP-RIBOSE. It is a cell surface molecule which is predominantly expressed on LYMPHOID CELLS and MYELOID CELLS.Adenylate Cyclase: An enzyme of the lyase class that catalyzes the formation of CYCLIC AMP and pyrophosphate from ATP. EC 4.6.1.1.Ribose: A pentose active in biological systems usually in its D-form.Guanylate Cyclase: An enzyme that catalyzes the conversion of GTP to 3',5'-cyclic GMP and pyrophosphate. It also acts on ITP and dGTP. (From Enzyme Nomenclature, 1992) EC 4.6.1.2.NAD+ NucleosidaseNAD: A coenzyme composed of ribosylnicotinamide 5'-diphosphate coupled to adenosine 5'-phosphate by pyrophosphate linkage. It is found widely in nature and is involved in numerous enzymatic reactions in which it serves as an electron carrier by being alternately oxidized (NAD+) and reduced (NADH). (Dorland, 27th ed)Adenylate Cyclase Toxin: One of the virulence factors produced by virulent BORDETELLA organisms. It is a bifunctional protein with both ADENYLYL CYCLASES and hemolysin components.Kinetics: The rate dynamics in chemical or physical systems.Models, Molecular: Models used experimentally or theoretically to study molecular shape, electronic properties, or interactions; includes analogous molecules, computer-generated graphics, and mechanical structures.Adenosine Diphosphate: Adenosine 5'-(trihydrogen diphosphate). An adenine nucleotide containing two phosphate groups esterified to the sugar moiety at the 5'-position.Substrate Specificity: A characteristic feature of enzyme activity in relation to the kind of substrate on which the enzyme or catalytic molecule reacts.Dictionaries, MedicalCyclic ADP-Ribose: A pyridine nucleotide that mobilizes CALCIUM. It is synthesized from nicotinamide adenine dinucleotide (NAD) by ADP RIBOSE CYCLASE.Dictionaries as Topic: Lists of words, usually in alphabetical order, giving information about form, pronunciation, etymology, grammar, and meaning.Adenosine Diphosphate Ribose: An ester formed between the aldehydic carbon of RIBOSE and the terminal phosphate of ADENOSINE DIPHOSPHATE. It is produced by the hydrolysis of nicotinamide-adenine dinucleotide (NAD) by a variety of enzymes, some of which transfer an ADP-ribosyl group to target proteins.Antibodies, Monoclonal: Antibodies produced by a single clone of cells.Antibody Specificity: The property of antibodies which enables them to react with some ANTIGENIC DETERMINANTS and not with others. Specificity is dependent on chemical composition, physical forces, and molecular structure at the binding site.Azides: Organic or inorganic compounds that contain the -N3 group.Clone Cells: A group of genetically identical cells all descended from a single common ancestral cell by mitosis in eukaryotes or by binary fission in prokaryotes. Clone cells also include populations of recombinant DNA molecules all carrying the same inserted sequence. (From King & Stansfield, Dictionary of Genetics, 4th ed)Antibodies: Immunoglobulin molecules having a specific amino acid sequence by virtue of which they interact only with the ANTIGEN (or a very similar shape) that induced their synthesis in cells of the lymphoid series (especially PLASMA CELLS).Receptors, Muscarinic: One of the two major classes of cholinergic receptors. Muscarinic receptors were originally defined by their preference for MUSCARINE over NICOTINE. There are several subtypes (usually M1, M2, M3....) that are characterized by their cellular actions, pharmacology, and molecular biology.Ryanodine Receptor Calcium Release Channel: A tetrameric calcium release channel in the SARCOPLASMIC RETICULUM membrane of SMOOTH MUSCLE CELLS, acting oppositely to SARCOPLASMIC RETICULUM CALCIUM-TRANSPORTING ATPASES. It is important in skeletal and cardiac excitation-contraction coupling and studied by using RYANODINE. Abnormalities are implicated in CARDIAC ARRHYTHMIAS and MUSCULAR DISEASES.Guanosine Diphosphate Sugars: Esters formed between the aldehydic carbon of sugars and the terminal phosphate of guanosine diphosphate.NADP: Nicotinamide adenine dinucleotide phosphate. A coenzyme composed of ribosylnicotinamide 5'-phosphate (NMN) coupled by pyrophosphate linkage to the 5'-phosphate adenosine 2',5'-bisphosphate. It serves as an electron carrier in a number of reactions, being alternately oxidized (NADP+) and reduced (NADPH). (Dorland, 27th ed)Second Messenger Systems: Systems in which an intracellular signal is generated in response to an intercellular primary messenger such as a hormone or neurotransmitter. They are intermediate signals in cellular processes such as metabolism, secretion, contraction, phototransduction, and cell growth. Examples of second messenger systems are the adenyl cyclase-cyclic AMP system, the phosphatidylinositol diphosphate-inositol triphosphate system, and the cyclic GMP system.CD4 Immunoadhesins: Chimeric molecules resulting from the fusion of recombinant soluble CD4 to the Fc portion of immunoglobulins. These have potential use in the therapy of AIDS since they possess both the gp120-binding and HIV-blocking properties of rCD4 as well as the long plasma half-life and Fc receptor-binding functions of immunoglobulin.CD40 Ligand: A membrane glycoprotein and differentiation antigen expressed on the surface of T-cells that binds to CD40 ANTIGENS on B-LYMPHOCYTES and induces their proliferation. Mutation of the gene for CD40 ligand is a cause of HYPER-IGM IMMUNODEFICIENCY SYNDROME, TYPE 1.Recombinant Proteins: Proteins prepared by recombinant DNA technology.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.Wheat Germ Agglutinins: Lectins purified from the germinating seeds of common wheat (Triticum vulgare); these bind to certain carbohydrate moieties on cell surface glycoproteins and are used to identify certain cell populations and inhibit or promote some immunological or physiological activities. There are at least two isoforms of this lectin.Antigens, CD8: Differentiation antigens found on thymocytes and on cytotoxic and suppressor T-lymphocytes. CD8 antigens are members of the immunoglobulin supergene family and are associative recognition elements in MHC (Major Histocompatibility Complex) Class I-restricted interactions.Antigens, CD34: Glycoproteins found on immature hematopoietic cells and endothelial cells. They are the only molecules to date whose expression within the blood system is restricted to a small number of progenitor cells in the bone marrow.GPI-Linked Proteins: A subclass of lipid-linked proteins that contain a GLYCOSYLPHOSPHATIDYLINOSITOL LINKAGE which holds them to the CELL MEMBRANE.Antigens, CD: Differentiation antigens residing on mammalian leukocytes. CD stands for cluster of differentiation, which refers to groups of monoclonal antibodies that show similar reactivity with certain subpopulations of antigens of a particular lineage or differentiation stage. The subpopulations of antigens are also known by the same CD designation.Stromal Cells: Connective tissue cells of an organ found in the loose connective tissue. These are most often associated with the uterine mucosa and the ovary as well as the hematopoietic system and elsewhere.Bone Marrow Cells: Cells contained in the bone marrow including fat cells (see ADIPOCYTES); STROMAL CELLS; MEGAKARYOCYTES; and the immediate precursors of most blood cells.Bone Marrow: The soft tissue filling the cavities of bones. Bone marrow exists in two types, yellow and red. Yellow marrow is found in the large cavities of large bones and consists mostly of fat cells and a few primitive blood cells. Red marrow is a hematopoietic tissue and is the site of production of erythrocytes and granular leukocytes. Bone marrow is made up of a framework of connective tissue containing branching fibers with the frame being filled with marrow cells.Bone Marrow Transplantation: The transference of BONE MARROW from one human or animal to another for a variety of purposes including HEMATOPOIETIC STEM CELL TRANSPLANTATION or MESENCHYMAL STEM CELL TRANSPLANTATION.Osteogenesis: The process of bone formation. Histogenesis of bone including ossification.Cell Wall: The outermost layer of a cell in most PLANTS; BACTERIA; FUNGI; and ALGAE. The cell wall is usually a rigid structure that lies external to the CELL MEMBRANE, and provides a protective barrier against physical or chemical agents.Candida albicans: A unicellular budding fungus which is the principal pathogenic species causing CANDIDIASIS (moniliasis).Spheroplasts: Cells, usually bacteria or yeast, which have partially lost their cell wall, lost their characteristic shape and become round.Saccharomyces cerevisiae: A species of the genus SACCHAROMYCES, family Saccharomycetaceae, order Saccharomycetales, known as "baker's" or "brewer's" yeast. The dried form is used as a dietary supplement.Fungal Proteins: Proteins found in any species of fungus.Yeasts: A general term for single-celled rounded fungi that reproduce by budding. Brewers' and bakers' yeasts are SACCHAROMYCES CEREVISIAE; therapeutic dried yeast is YEAST, DRIED.Catalysis: The facilitation of a chemical reaction by material (catalyst) that is not consumed by the reaction.Poly(ADP-ribose) Polymerases: Enzymes that catalyze the transfer of multiple ADP-RIBOSE groups from nicotinamide-adenine dinucleotide (NAD) onto protein targets, thus building up a linear or branched homopolymer of repeating ADP-ribose units i.e., POLY ADENOSINE DIPHOSPHATE RIBOSE.Biopharmaceutics: The study of the physical and chemical properties of a drug and its dosage form as related to the onset, duration, and intensity of its action.Antigens, CD3: Complex of at least five membrane-bound polypeptides in mature T-lymphocytes that are non-covalently associated with one another and with the T-cell receptor (RECEPTORS, ANTIGEN, T-CELL). The CD3 complex includes the gamma, delta, epsilon, zeta, and eta chains (subunits). When antigen binds to the T-cell receptor, the CD3 complex transduces the activating signals to the cytoplasm of the T-cell. The CD3 gamma and delta chains (subunits) are separate from and not related to the gamma/delta chains of the T-cell receptor (RECEPTORS, ANTIGEN, T-CELL, GAMMA-DELTA).Antigens, CD40: A member of the tumor necrosis factor receptor superfamily with specificity for CD40 LIGAND. It is found on mature B-LYMPHOCYTES and some EPITHELIAL CELLS, lymphoid DENDRITIC CELLS. Evidence suggests that CD40-dependent activation of B-cells is important for generation of memory B-cells within the germinal centers. Mutations of the gene for CD40 antigen result in HYPER-IGM IMMUNODEFICIENCY SYNDROME, TYPE 3. Signaling of the receptor occurs through its association with TNF RECEPTOR-ASSOCIATED FACTORS.Antigens, CD28: Costimulatory T-LYMPHOCYTE receptors that have specificity for CD80 ANTIGEN and CD86 ANTIGEN. Activation of this receptor results in increased T-cell proliferation, cytokine production and promotion of T-cell survival.Antigens, CD44: Acidic sulfated integral membrane glycoproteins expressed in several alternatively spliced and variable glycosylated forms on a wide variety of cell types including mature T-cells, B-cells, medullary thymocytes, granulocytes, macrophages, erythrocytes, and fibroblasts. CD44 antigens are the principle cell surface receptors for hyaluronate and this interaction mediates binding of lymphocytes to high endothelial venules. (From Abbas et al., Cellular and Molecular Immunology, 2d ed, p156)

Purification and characterization of ADP-ribosyl cyclase from Euglena gracilis. (1/575)

ADP-ribosyl cyclase, which catalyzes the conversion from NAD+ to cyclic adenosine diphosphoribose (cADPR), is proposed to participate in cell cycle regulation in Euglena gracilis. This enzyme, which was found as a membrane-bound protein, was purified almost the homogeneity after solubilization with deoxycholate, and found to be a monomeric protein with a molecular mass of 40 kDa. Its Km value for NAD+ was estimated to be 0.4 mM, and cADPR, a product of the enzyme, inhibited the enzyme competitively with respect to NAD+ whereas another product, nicotinamide, showed noncompetitive (mixed-type) inhibition. In contrast to mammalian CD38 and BST-1, Euglena ADP-ribosyl cyclase lacked cADPR hydrolase activity.  (+info)

Characterization of viral dynamics in human immunodeficiency virus type 1-infected patients treated with combination antiretroviral therapy: relationships to host factors, cellular restoration, and virologic end points. (2/575)

Biphasic plasma viral decays were modeled in 48 patients treated with ritonavir, zidovudine, and lamivudine. Estimated first- and second-phase decay rates were d1 as 0.47/day and d2 as 0.04/day. Interpatient differences in both decay rates were significant. The d1 was directly correlated with baseline CD4+, CD4+CD28+, and CD8+CD28+ T lymphocyte counts (P<.05) and inversely correlated with baseline virus load (P=.044) and the magnitude of CD4+ and CD8+ T lymphocyte recovery (P<.01). The d2 was directly correlated with baseline percentage of CD8+ T lymphocytes (P=.023), the CD8+CD38+ cell number (P=.024), and the level of IgG that binds to human immunodeficiency virus (HIV) type 1 gp120 (P=.02). Viral decay rates were not predictive of treatment failure or durability of viral suppression. These exploratory findings are consistent with a model in which immunologic factors contribute to elimination of HIV-infected cells and suggest a dynamic interplay between regulation of HIV expression and lymphocyte activation and recovery.  (+info)

Shorter survival in advanced human immunodeficiency virus type 1 infection is more closely associated with T lymphocyte activation than with plasma virus burden or virus chemokine coreceptor usage. (3/575)

To define predictors of survival time in late human immunodeficiency virus type 1 (HIV-1) disease, long- and short-duration survivors were studied after their CD4+ T cells fell to +info)

IL-5 induces IgG1 isotype switch recombination in mouse CD38-activated sIgD-positive B lymphocytes. (4/575)

Mouse B cells express CD38, whose ligation by anti-CD38 Ab induces their proliferation and protection from apoptosis. We previously showed that stimulation of mouse splenic B cells with IL-5 together with CS/2, an anti-mouse CD38 mAb, induces production of IgG1 and IgM. Here we examined the role of IL-5 and CS/2 in the expression of germline gamma1 transcripts and the generation of reciprocal products forming DNA circles as byproducts of mu-gamma1 switch recombination. By itself, CS/2 induced significant expression of germline gamma1 transcripts in splenic naive B cells, whereas IL-5 neither induced nor enhanced germline gamma1 expression. Increased cellular content of reciprocal product, which is characteristic of mu-gamma1 recombination, was not observed after culturing B cells with CS/2, but increased reciprocal product, along with high levels of lgG1 secretion, was found when B cells were cultured with CS/2 plus IL-5. Although IL-4 did not, by itself, induce mu-gamma1 recombination in B cells stimulated with CS/2, in conjunction with CS/2 plus IL-5, IL-4 dramatically enhanced sterile gamma1 transcription and IgG1 production. These results demonstrate that CD38 ligation induces only germline gamma1 transcription and that IL-5 promotes both mu-gamma1 switch recombination and lgG1 secretion in an IL-4-independent manner.  (+info)

Stable transduction of quiescent CD34(+)CD38(-) human hematopoietic cells by HIV-1-based lentiviral vectors. (5/575)

We compared the efficiency of transduction by an HIV-1-based lentiviral vector to that by a Moloney murine leukemia virus (MLV) retroviral vector, using stringent in vitro assays of primitive, quiescent human hematopoietic progenitor cells. Each construct contained the enhanced green fluorescent protein (GFP) as a reporter gene. The lentiviral vector, but not the MLV vector, expressed GFP in nondivided CD34(+) cells (45.5% GFP+) and in CD34(+)CD38(-) cells in G0 (12.4% GFP+), 48 hr after transduction. However, GFP could also be detected short-term in CD34(+) cells transduced with a lentiviral vector that contained a mutated integrase gene. The level of stable transduction from integrated vector was determined after extended long-term bone marrow culture. Both MLV vectors and lentiviral vectors efficiently transduced cytokine-stimulated CD34(+) cells. The MLV vector did not transduce more primitive, quiescent CD34(+)CD38(-) cells (n = 8). In contrast, stable transduction of CD34(+)CD38(-) cells by the lentiviral vector was seen for over 15 weeks of extended long-term culture (9.2 +/- 5.2%, n = 7). GFP expression in clones from single CD34(+)CD38(-) cells confirmed efficient, stable lentiviral transduction in 29% of early and late-proliferating cells. In the absence of growth factors during transduction, only the lentiviral vector was able to transduce CD34(+) and CD34(+)CD38(-) cells (13.5 +/- 2.5%, n = 11 and 12.2 +/- 9.7%, n = 4, respectively). The lentiviral vector is clearly superior to the MLV vector for transduction of quiescent, primitive human hematopoietic progenitor cells and may provide therapeutically useful levels of gene transfer into human hematopoietic stem cells.  (+info)

The metamorphosis of a molecule: from soluble enzyme to the leukocyte receptor CD38. (6/575)

Human CD38 is a 45-kDa type II membrane glycoprotein with an intricate pattern of expression in leukocytes, although evidence is accumulating of its quite widespread expression in cells of nonvascular origin. CD38 is a member of a nascent eukaryotic gene family encoding cytosolic and membrane-bound enzymes whose substrate is NAD, a coenzyme ubiquitously distributed in nature. Functionally, CD38 is an eclectic molecule with the ability not only to catalyze but also to signal, to mobilize calcium, and to adhere to itself, to hyaluronan, and to other ligands. Interaction with CD38 on various leukocyte subpopulations has profound though diverse consequences on their life-span, but these effects seem to be independent of the enzymatic activity of the molecule. CD38 challenges our expectations of a surface molecule and we must sift through its many guises to unmask its true nature.  (+info)

Evidence of a role for cyclic ADP-ribose in long-term synaptic depression in hippocampus. (7/575)

Ca2+ released from presynaptic and postsynaptic intracellular stores plays important roles in activity-dependent synaptic plasticity, including long-term depression (LTD) of synaptic strength. At Schaffer collateral-CA1 synapses in the hippocampus, presynaptic ryanodine receptor-gated stores appear to mobilize some of the Ca2+ necessary to induce LTD. Cyclic ADP-ribose (cADPR) has recently been proposed as an endogenous activator of ryanodine receptors in sea urchin eggs and several mammalian cell types. Here, we provide evidence that cADPR-mediated signaling pathways play a key role in inducing LTD. We show that biochemical production of cGMP increases cADPR concentration in hippocampal slices in vitro, and that blockade of cGMP-dependent protein kinase, cADPR receptors, or ryanodine-sensitive Ca2+ stores each prevent the induction of LTD at Schaffer collateral-CA1 synapses. A lack of effect of postsynaptic infusion of either cADPR antagonist indicates a probable presynaptic site of action.  (+info)

Expression of CD28 and CD38 by CD8+ T lymphocytes in HIV-1 infection correlates with markers of disease severity and changes towards normalization under treatment. The Swiss HIV Cohort Study. (8/575)

The relationship between blood CD8+ T lymphocyte subsets, as defined by CD28 and CD38 expression, and plasma viraemia and CD4+ T cells in HIV-1 infection was investigated. In a cross-sectional study of 46 patients with either no or stable anti-retroviral treatment, there was a strong negative correlation between the percentage of CD8+CD28- and the percentage of CD4+ T cells (r = -0.75, P < 0.0001), and a positive correlation between absolute numbers of CD8+CD28+ and CD4+ T cells (r = 0.56, P < 0.0001). In contrast, the expression of CD38 by CD8+ T lymphocytes correlated primarily with plasma viraemia (e.g. the percentage of CD38+ in CD8bright cells, r = 0.76, P < 0.0001). In the 6 months following triple therapy initiation in 32 subjects, there was a close correlation between changes (delta) in CD8+CD28+ or CD8+CD28- and in CD4+ T cells (e.g. delta % CD8+CD28+ versus delta % CD4+, r = 0.37, P = 0.0002; delta % CD8+CD28- versus delta % CD4+, r = -0.66, P < 0.0001). A marked decline of the number of CD8+ T cells expressing CD38 was also observed. These results suggest the existence of a T cell homeostasis mechanism operating in blood with CD4+ and CD8+CD28+ cells on the one hand, and with CD8+CD28- cells on the other. In addition, the percentage of CD38+ cells in CD8+ cells, generally considered an independent prognostic factor, could merely reflect plasma viral load.  (+info)

CD38 (ADP Ribosyl Cyclase I) Antibody - Without BSA and Azide, Mouse Monoclonal Antibody [Clone AT2 ] validated in IF, FC (AH12737-100), Abgent
Looking for online definition of ADP-ribosyl cyclase 2 in the Medical Dictionary? ADP-ribosyl cyclase 2 explanation free. What is ADP-ribosyl cyclase 2? Meaning of ADP-ribosyl cyclase 2 medical term. What does ADP-ribosyl cyclase 2 mean?
Accepted name: NAD+ glycohydrolase. Reaction: NAD+ + H2O = ADP-D-ribose + nicotinamide. Glossary: ADP-D-ribose = adenosine 5′-(5-deoxy-D-ribofuranos-5-yl diphosphate). Other name(s): NAD glycohydrolase; nicotinamide adenine dinucleotide glycohydrolase; β-NAD+ glycohydrolase; DPNase (ambiguous); NAD hydrolase (ambiguous); diphosphopyridine nucleosidase (ambiguous); nicotinamide adenine dinucleotide nucleosidase (ambiguous); NAD nucleosidase (ambiguous); DPN hydrolase (ambiguous); NADase (ambiguous); nga (gene name). Systematic name: NAD+ glycohydrolase. Comments: This enzyme catalyses the hydrolysis of NAD+, without associated ADP-ribosyl cyclase activities (unlike the metazoan enzyme EC 3.2.2.6, bifunctional ADP-ribosyl cyclase/cyclic ADP-ribose hydrolase). The enzyme from Group A streptococci has been implicated in the pathogenesis of diseases such as streptococcal toxic shock-like syndrome (STSS) and necrotizing fasciitis. The enzyme from the venom of the snake Agkistrodon acutus also ...
Although activation of M2 muscarinic receptors is classically known to inhibit adenylyl cyclase activity (Peralta et al., 1988) or to modify membrane potential by inhibiting Ca2+-activated K+ channel (Kotlikoff et al., 1992), it has been recently proposed that M2 muscarinic receptors may induce Ca2+ signals by activation of the cADPR pathway (White et al., 2003) or by stimulation of a voltage-dependent Ca2+ channel (Cav1.2b) via the phosphatidylinositol 3-kinase/PKC pathway (Callaghan et al., 2004). Activation of the cADPR pathway by ACh in duodenum myocytes is shown by: (1) inhibition of Ca2+ oscillations by application of the cADPR competitive antagonist (8Br-cADPR), (2) inhibition of ACh-induced Ca2+ oscillations by inhibitors of ADP-ribosyl cyclase (ZnCl2, anti-CD38 antibody) and (3) detection of ADP-ribosyl cyclase activity by fluorescence experiments as the enzyme cyclizes NGD+ (non fluorescent) to produce cGDPR, a fluorescent compound (Graeff et al., 1994). This method has been used ...
A Membrane-bound or cytosolic enzyme that catalyzes the synthesis of Cyclic ADP-Ribose (cADPR) from Nicotinamide Adenine Dinucleotide (NAD). This enzyme generally catalyzes the Hydrolysis of cADPR to ADP-Ribose, as well, and sometimes the synthesis of Cyclic ADP-Ribose 2 phosphate (2-P-cADPR) from NADP ...
CD38 (NAD+ glycohydrolase) is a type II transmembrane glycoprotein able to induce activation, proliferation and differentiation of mature lymphocytes and mediate apoptosis of myeloid and lymphoid progenitor cells. Another role of CD38 is provided by enzymatic activity of its extracellular part. CD38 acts as NAD+ glycohydrolase converting NAD+ into ADP-ribose, as ADP-ribosyl cyclase producing cADPR and as cADPR hydrolase, thus affecting levels of calcium-mobilizing metabolites. ADPR produced by CD38 serves as an important second messenger of neutrophil and dendritic cell migration ...
CD38 is a 42-kilodalton glycoprotein expressed extensively on B and T lymphocytes. CD38 exhibits a structural homology to Aplysia adenosine diphosphate (ADP)-ribosyl cyclase. This enzyme catalyzes the synthesis of cyclic ADP-ribose (cADPR), a metabolite of nicotinamide adenine dinucleotide (NAD +) with calcium-mobilizing activity. A complementary DNA encoding the extracellular domain of murine CD38 was constructed and expressed, and the resultant recombinant soluble CD38 was purified to homogeneity. Soluble CD38 catalyzed the formation and hydrolysis of cADPR when added to NAD+. Purified cADPR augmented the proliferative response of activated murine B cells, potentially implicating the enzymatic activity of CD38 in lymphocyte function ...
The human lymphocyte antigen CD38 has been shown to share sequence homology with ADP-ribosyl cyclase, the enzyme that catalyzes the conversion of NAD+ to cyclic ADP-ribose (cADPR), a potent Ca(2+)-mobilizing agent. In this study COS1 cells from African Green Monkey kidney were transiently transfected with CD38 cDNA, inducing expression of authentic CD38 on the cell surface. We demonstrate that CD38 expressed in this manner can convert NAD+ to cADPR in the extracellular medium as assessed by Ca2+ release from sea-urchin egg microsomes.
Clone REA465 recognizes the human CD157 antigen, a glycosylphosphatidylinositol (GPI) linked protein, which is also known as bone marrow stromal antigen 1 (BST-1) or cyclic ADP-ribose hydrolase 2. CD157, a member of the CD38 gene family, is an NAD-metabolizing ectoenzyme and a signaling molecule, which synthesizes the second messengers cyclic ADP-ribose and nicotinate-adenine dinucleotide phosphate, former a second messenger that elicits calcium release from intracellular stores. It is mainly expressed by cells of the myeloid lineage, bone marrow stroma, and vascular endothelium. CD157 is also expressed by ovarian cancer epithelium and by peritoneal mesothelial cells, where it is implicated in tumor dissemination. Further, it is endowed with receptor-like features observed in different cell types and transduces signals by interacting with transmembrane partner molecules, a strategy shared by other GPI-anchored molecules. CD157 is involved in neutrophil polarization, adhesion, and motility and controls
Chemical-registry-number] 0 / Antibodies, Neoplasm; 0 / Antigens, CD; 0 / Antigens, CD7; 0 / Antigens, Differentiation; 0 / Antineoplastic Agents, Phytogenic; 0 / Carrier Proteins; 0 / Immunoglobulin G; 0 / Immunotoxins; 0 / Lipoproteins, HDL; 0 / Membrane Glycoproteins; 0 / Plant Proteins; 0 / RNA-Binding Proteins; 0 / Receptors, Lipoprotein; 0 / Ribosome Inactivating Proteins, Type 1; 0 / high density lipoprotein receptors; 147605-06-9 / high density lipoprotein binding protein; EC 3.2.2.- / N-Glycosyl Hydrolases; EC 3.2.2.22 / saporin; EC 3.2.2.5 / ADP-ribosyl Cyclase; EC 3.2.2.5 / Antigens, CD38; EC 3.2.2.5 / Cd38 protein, mouse; EC 3.2.2.5 / NAD+ ...
Cyclic ADP-ribose (cADPR) is a putative second messenger that has been demonstrated to mobilize Ca2+ in many cell types. Its postulated role as the endogenous regulator of ryanodine-sensitive Ca2+ release channels has been greatly supported by the advent and use of specific cADPR receptor antagonists such as 8-NH2-cADPR (Walseth, T. F., and Lee, H. C. (1993) Biochim. Biophys. Acta 1178, 235-242). However, investigations of the role of cADPR in physiological responses, such as fertilization, stimulus-secretion coupling, and excitation-contraction coupling, have been hindered by the susceptibility of cADPR receptor antagonists to hydrolysis and the need to introduce these molecules into cells by microinjection or patch clamp techniques. We have recently reported on the discovery of a poorly hydrolyzable analogue of cADPR, 7-deaza-cADPR (Bailey, V. C., Sethi, J. K., Fortt, S. M., Galione, A., and Potter, B. V. L. (1997) Chem. Biol. 4, 41-51) but this, like cADPR, is an agonist of ryanodine-sensitive Ca2+
Clone REA976 recognizes the human CD370 antigen, also known as C-type lectin domain family 9 member A (CLEC9A). CD370 is a type II transmembrane glycoprotein member of 241 amino acids with a predicted molecular mass of ~30 kDa. It is also known as DNGR-1 and is expressed on BDCA-3+ myeloid dendritic cells from peripheral blood and lymphoid tissues. CD370 acts as a receptor for necrotic cells and plays an important role in cross-presentation. Additional information: Clone REA976 displays negligible binding to Fc receptors. - Great Britain
Cadp-ribose/ACM119340535 can be provided in Alfa Chemistry. We are dedicated to provide our customers the best products and services.
InterPro provides functional analysis of proteins by classifying them into families and predicting domains and important sites. We combine protein signatures from a number of member databases into a single searchable resource, capitalising on their individual strengths to produce a powerful integrated database and diagnostic tool.
Background: Poly (ADP-ribosyl) polymerase 1 (PARP1) is important in maintaining genomic stability, repairing DNA damage, and regulating transcriptional processe
Frame house with balcony and porch. There is a widows walk on the roof and trees near the house. Text on verso reads, "No home in Key West is more highly valued both as as [sic] an example of our distinctive architecture and because of the vivid ...
MarketResearchReports.biz has recently announced the addition of a market study " Tumor Necrosis Factor Receptor Superfamily Member 5 (B Cell Surface Antigen CD40 or Bp50 or CDw40 or CD40L Receptor or TNFRSF5 or CD40) - Pipeline Review, H2 2016 ", is a comparative analysis of the global market.. Tumor Necrosis Factor Receptor Superfamily Member 5 (B Cell Surface Antigen CD40 or Bp50 or CDw40 or CD40L Receptor or TNFRSF5 or CD40) - Pipeline Review, H2 2016. Summary. Global Markets Directs, Tumor Necrosis Factor Receptor Superfamily Member 5 (B Cell Surface Antigen CD40 or Bp50 or CDw40 or CD40L Receptor or TNFRSF5 or CD40) - Pipeline Review, H2 2016, provides in depth analysis on Tumor Necrosis Factor Receptor Superfamily Member 5 (B Cell Surface Antigen CD40 or Bp50 or CDw40 or CD40L Receptor or TNFRSF5 or CD40) targeted pipeline therapeutics.. The report provides comprehensive information on the Tumor Necrosis Factor Receptor Superfamily Member 5 (B Cell Surface Antigen CD40 or Bp50 or CDw40 or ...
BACKGROUND AND PURPOSE: Recently, a number of mimics of the second messenger cyclic ADP-ribose (cADPR) with replacement of adenosine by inosine were introduced. In addition, various alterations in the molecule ranging from substitutions at C8 of the base up to full replacement of the ribose moieties still retained biological activity. However, nothing is known about the metabolic stability and cellular effects of these novel analogues. EXPERIMENTAL APPROACH: cADPR and the inosine-based analogues were incubated with CD38, ADP-ribosyl cyclase and NAD-glycohydrolase and metabolism was analysed by RP-HPLC. Furthermore, the effect of the analogues on cytokine expression and proliferation was investigated in primary T-lymphocytes and T-lymphoma cells. KEY RESULTS: Incubation of cADPR with CD38 resulted in degradation to adenosine diphosphoribose. ADP-ribosyl cyclase weakly catabolised cADPR whereas NAD-glycohydrolase showed no such activity. In contrast, N1-cyclic inosine 5-diphosphoribose (N1-cIDPR) was not
TY - JOUR. T1 - Drosophila forkhead homologues are expressed in CD34+HLA-DR- primitive human hematopoietic progenitors. AU - Hromas, Robert. AU - Klemsz, Michael. AU - Amaravadi, Lakshmi. AU - Hufford, Tricia. AU - Huang, Irene. AU - Desai, Alpana. AU - Srour, Edward. AU - Bruno, Edward. AU - Hoffman, Ronald. PY - 1994. Y1 - 1994. N2 - The Forkhead gene (FKH) regulates morphogenesis in Drosophila. It is the prototype of a new family of transcriptional activators. We used the polymerase chain reaction (PCR) to analyze the expression pattern of this new transcriptional regulatory gene family in primitive hematopoeitic progenitors. Partially degenerate oligonucleotides to two conserved amino acid sequences of this family were used to prime a PCR amplification of cDNA synthesized from CD34+HLA-DR- hematopoietic cells. Known and novel FKH genes were found to be expressed in these cells.. AB - The Forkhead gene (FKH) regulates morphogenesis in Drosophila. It is the prototype of a new family of ...
Cyclic ADP-ribose (cADPR) and nicotinic acid adenine dinucleotide phosphate (NAADP) mobilize Ca2+ from two different types of intracellular stores and through completely independent mechanisms. The two Ca2+ messengers are also structurally distinct. cADPR is a cyclic nucleotide derived from NAD, whi …
Abstract. Evidence has been provided recently that shows that high concentrations of cytokines can fulfill functions previously attributed to stromal cells, su
This multiunctional enzyme catalyses both the synthesis and hydrolysis of cyclic ADP-ribose, a calcium messenger that can mobilize intracellular Ca2+ stores and activate Ca2+ influx to regulate a wide range of physiological processes. In addition, the enzyme also catalyses EC 2.4.99.20, 2-phospho-ADP-ribosyl cyclase/2-phospho-cyclic-ADP-ribose transferase. cf. EC 3.2.2.5, NAD+ glycohydrolase ...
Increasing evidence has indicated that NAD+ and NADH play critical roles not only in energy metabolism, but also in cell death and various cellular functions including regulation of calcium homeostasis and gene expression. It has also been indicated that NAD+ and NADH are mediators of multiple major biological processes including aging. NAD+ and NADH produce the biological effects by regulating numerous NAD+/NADH-dependent enzymes, including dehydrogenases, poly(ADP-ribose) polymerases, Sir2 family proteins (sirtuins), mono(ADP-ribosyl)transferases, and ADP-ribosyl cyclases. Of particular interest, NAD+-dependent generation of ADP-ribose, cyclic ADP-ribose and O-acetyl-ADP-ribose can mediate calcium homeostasis by affecting TRPM2 receptors and ryanodine receptors; and sirtuins and PARPs appear to play key roles in aging, cell death and a variety of cellular functions. It has also been indicated that NADH and NAD+ can be transported across plasma membranes of cells, and that extracellular NAD+ ...
Purified anti-human CD70 Antibody - CD70, also known as CD27L, is a 50 kD type II transmembrane glycoprotein and member of the tumor necrosis factor superfamily.
This gene encodes a type II transmembrane glycoprotein that is the highly polymorphic Kell blood group antigen. The Kell glycoprotein links via a single disulfide bond to the XK membrane protein that carries the Kx antigen. The encoded protein contains sequence and structural similarity to members of the neprilysin (M13) family of zinc endopeptidases ...
FUNCTION: [Summary is not available for the mouse gene. This summary is for the human ortholog.] This gene encodes a type II transmembrane glycoprotein that is the highly polymorphic Kell blood group antigen. The Kell glycoprotein links via a single disulfide bond to the XK membrane protein that carries the Kx antigen. The encoded protein contains sequence and structural similarity to members of the neprilysin (M13) family of zinc endopeptidases. [provided by RefSeq, Jul 2008 ...
This gene encodes a chromatin-associated enzyme, poly(ADP-ribosyl)transferase, which modifies various nuclear proteins by poly(ADP-ribosyl)ation. The modification is dependent on DNA and is involved in the regulation of various important cellular processes such as differentiation, proliferation, and tumor transformation and also in the regulation of the molecular events involved in the recovery of cell from DNA damage. In addition, this enzyme may be the site of mutation in Fanconi anemia, and may participate in the pathophysiology of type I diabetes. [provided by RefSeq, Jul 2008 ...
The only curative therapy for sickle cell disease (SCD) is allogeneic hematopoietic stem cell (HSC) transplantation. Gene therapy approaches for autologous HSC transplantation are being developed. Although earlier engraftment is seen when cells from GCSF-mobilized blood are transplanted than when bone marrow is transplanted, administration of GCSF to patients with SCD can cause significant morbidity. We tested whether primitive hematopoietic progenitors are spontaneously mobilized in the blood of patients with SCD during acute crisis (AC-SCD patients). The frequency of myeloid-lymphoid-initiating cells (ML-ICs) and SCID-repopulating cells (SRCs) was significantly higher in blood from AC-SCD patients than in blood from patients with steady-state SCD or from normal donors. The presence of SRCs in peripheral blood was not associated with detection of long-term culture-initiating cells, consistent with the notion that SRCs are more primitive than long-term culture-initiating cells. As ML-ICs and ...
Since tumor necrosis factor (TNF)-alpha, interferon (IFN)-gamma, and transforming growth factor (TGF)-beta have all been shown to be specific inhibitors of early human hematopoiesis, we wanted to investigate the interactions of these three cytokines on very primitive human adult bone marrow CD34++CD38- hematopoietic progenitor cells, using a pre-colony-forming cell (pre-CFC) assay, which detects the effects of these cytokines on the initial phases of the differentiation of these primitive progenitors, which are unresponsive to interleukin (IL) 3 alone. Surprisingly, TNF-alpha was a very potent stimulator of the proliferation of CD34++CD38- cells and was the most potent synergistic factor for the IL-3-induced proliferation of these cells of all cytokines tested (IL-1, IL-6, granulocyte colony-stimulating factor, kit ligand). TNF-alpha was the only cytokine that, as a single added factor, induced substantial proliferation in CD34++CD38- cells in the presence of IL-3, except for kit ligand, which ...
Hypothalamic oxytocin (OT) is released into the brain by cyclic ADP-ribose (cADPR) with or without depolarizing stimulation. Previously, we showed that the intracellular free calcium concentration ([Ca2+]i) that seems to trigger OT release can be elevated by -NAD+, cADPR, and ADP in mouse oxytocinergic neurons. As these -NAD+ metabolites activate warm-sensitive TRPM2 cation channels, when the incubation temperature is increased, the [Ca2+]i in hypothalamic neurons is elevated. However, it has not been determined whether OT release is facilitated by heat in vitro or hyperthermia in vivo in combination with cADPR. Furthermore, it has not been examined whether CD38 and TRPM2 exert their functions on OT release during stress or stress-induced hyperthermia in relation to the anxiolytic roles and social behaviors of OT under stress conditions. Here, we report that OT release from the isolated hypothalami of male mice in culture was enhanced by extracellular application of cADPR or increasing the
Ligation of the T-cell receptor/CD3 complex results in global Ca(2+) signals that are essential for T-cell activation. We have recently reported that these global Ca(2+) signals are preceded by localized pacemaker Ca(2+) signals. Here, we demonstrate for the first time for human T cells that an increase in signal frequency of subcellular pacemaker Ca(2+) signals at sites close to the plasma membrane, in the cytosol and in the nucleus depends on the type 3 ryanodine receptor (RyR) and its modulation by cyclic ADP-ribose. The spatial distribution of D-myo-inositol 1,4,5-trisphosphate receptors and RyRs indicates a concerted action of both of these receptors/Ca(2+) channels in the generation of initial pacemaker signals localized close to the plasma membrane. Inhibition or knockdown of RyRs resulted in significant decreases in (1) the frequency of initial pacemaker signals localized close to the plasma membrane, and (2) the frequency of localized pacemaker Ca(2+) signals in the inner cytosol. Moreover,
Ofatumumab (oh" fa toom ue mab) is a human monoclonal IgG1 antibody to the cell surface antigen CD20 (also known as human B lymphocyte restricted differentiation antigen: Bp35), which is found on mature B cells as well as 90% of neoplastic B cell such as occur in chronic lymphocytic leukemia. CD20 is not present on pro-B cells, hematopoietic stem cells, normal plasma cells or other normal lymphocytes, circulating cells or tissues. Engagement of ofatumumab with CD20 leads to B cell lysis and depletion of circulating and tissue B cells for an extended period, up to 6 to 8 months. There is an accompanying mild decrease in IgM, but no change in IgG or IgA levels. ...
Summary is not available for the mouse gene. This summary is for the human ortholog.] This gene encodes a common acute lymphocytic leukemia antigen that is an important cell surface marker in the diagnosis of human acute lymphocytic leukemia (ALL). This protein is present on leukemic cells of pre-B phenotype, which represent 85% of cases of ALL. This protein is not restricted to leukemic cells, however, and is found on a variety of normal tissues. It is a glycoprotein that is particularly abundant in kidney, where it is present on the brush border of proximal tubules and on glomerular epithelium. The protein is a neutral endopeptidase that cleaves peptides at the amino side of hydrophobic residues and inactivates several peptide hormones including glucagon, enkephalins, substance P, neurotensin, oxytocin, and bradykinin. This gene, which encodes a 100-kD type II transmembrane glycoprotein, exists in a single copy of greater than 45 kb. The 5' untranslated region of this gene is ...
CD20 is a B cell-specific 35/37 kDa integral membrane protein which modulates proliferation and differentiation of normal resting B cells when stimulated by CD20 antibodies. An increase in c-myc mRNA levels occurs within hours after treatment of resting B cells with CD20 mAb; however earlier events in the CD20 signal transduction pathway have not been described. Here we demonstrate that anti-CD20 mediated induction of c-myc mRNA is inhibited by the tyrosine kinase inhibitor herbimycin A, that CD20 is associated with both tyrosine and serine kinase activity, and that tyrosine phosphorylation of multiple substrates is induced within minutes upon ligation of CD20 with mAb. Association of the tyrosine and serine kinases with CD20 was stable in lysis buffer containing 1% NP40 and 0.25% deoxycholate. Under the same conditions, antibodies against several other B cell surface molecules failed to co-precipitate tyrosine kinase activity, however, a serine kinase was precipitated by the anti-CD19 mAb, B43. ...
Career. Family. Self-Owned Business. Community mobilizer. Isabella Angwenyi is a force to be reckoned with, and she wont let the pandemic stop her.
We use cookies to ensure that we give you the best experience on our website. If you click Continue well assume that you are happy to receive all cookies and you wont see this message again. Click Find out more for information on how to change your cookie settings ...
Multiple mechanisms exist for increasing the concentration of intracellular calcium. This Perspective by Lee is one in a series on intracellular calcium release mechanisms and focuses on the calcium store operated by nicotinic acid adenine dinucleotide phosphate (NAADP). The characterization of the NAADP-operated calcium store as separate from the inositol trisphosphate (IP3)-operated and cyclic ADP-ribose (cADPR)-operated calcium stores is discussed. Lee also addresses the role of NAADP in regulating intracellular calcium fluctuations during fertilization and hormonal activation of pancreatic acinar cells.. ...
An immunoconjugate consisting of the humanized monoclonal antibody huMy9-6 conjugated to the cytotoxic maytansinoid DM4 with potential antineoplastic activity. The monoclonal antibody portion of anti-CD33 monoclonal antibody-DM4 conjugate AVE9633 specifically binds to the cell surface antigen CD33 expressed on myeloid leukemia cells; upon internalization, the DM4 moiety is released, binds tubulin, and disrupts microtubule assembly/disassembly dynamics, resulting in the inhibition of cell division and cell growth in myeloid leukemia cells that express CD33.
Hereditary hemochromatosis (HH) is a prevalent genetic disorder that results in the daily excess absorption of dietary iron. If untreated this disease leads to systemic organ failure and death. HH is caused by mutations to the gene coding for a protein called HFE, a type I transmembrane glycoprotein with a demonstrated role in regulating cellular iron homeostasis. HFE binds to the cell-surface receptor transferrin receptor (TfR), a dimeric type II transmembrane glycoprotein responsible for iron uptake into most mammalian cell types. TfR binds iron-loaded transferrin (Fe-Tf) from the blood and transports it to acidic recycling endosomes where iron is released from Fe-Tf in a TfR-facilitated process. Iron-free transferrin (apo-Tf) remains bound to TfR and is recycled to the cell surface, where apo-Tf rapidly dissociates from TfR upon exposure to the basic pH of blood. HFE and Fe-Tf can bind simultaneously to TfR to form a ternary complex, but HFE binding to TfR lowers the apparent affinity of the ...
TY - JOUR. T1 - Developmental assembly of calcium-mobilizing systems for excitatory amino acids in rat cerebellum. AU - Ito, Etsuro. AU - Miyazawa, Atsuo. AU - Takagi, Hiroshi. AU - Yoshioka, Tohru. AU - Horikoshi, Tetsuro. AU - Yanagisawa, Keiji. AU - Nakamura, Takeshi. AU - Kudo, Yoshihisa. AU - Umeda, Masato. AU - Inoue, Keizo. AU - Mikoshiba, Katsuhiko. PY - 1991/8. Y1 - 1991/8. N2 - The postnatal development of calcium-mobilizing systems was studied by both microfluorometric imaging analysis of Ca2+ on living rat cerebellar slices and immunohistochemical labeling of phosphatidylinositol 4,5-bisphosphate (PIP2) and inositol 1,4,5-trisphosphate binding protein (IP3BP) in fixed rat cerebellum. Stimulation with quisqualate (QA) or N-methyl-d-aspartate (NMDA) enhanced the Ca2+ level only diffusely on postnatal day (PND) 3, but more discretely on PNDs 7 and 15. On PND 21, QA-induced responses were localized in the molecular layer especially, but not in the granular layer. By contrast, NMDA ...
CD2 interacts with lymphocyte function-associated antigen (LFA-3) to mediate adhesion between T-cells and other cell types. CD2 is implicated in the triggering of T-cells, the cytoplasmic domain is implicated in the signaling function.
De Wynter, E.A., Buck, D., Hart, C., Heywood, R., Coutinho, L.H., Clayton, A., Rafferty, J.A., Burt, D., Guenechea, G., Bueren, J.A., Gagen, D., Fairbairn, L.J., Lord, B.I. & Testa, N.G. (1998) CD34+AC133+ cells isolated from cord blood are highly enriched in long-term culture-initiating cells, NOD/SCID-repopulating cells and dendritic cell progenitors. Stem Cells, 16, 387-396. ...
concentrations allow shop born. established by accuracy A effects. Pseudomonas, Salmonella, Shigella, E. ADP-ribosyl to generate shop born in auto dimensions.
Recent developments of surrogate assays for human hematopoietic stem cells (HSC) have facilitated efforts at improving HSC gene transfer efficiency. Through the use of xenograft transplantation models, such as nonobese diabetic/severe combined immunodeficiency (NOD/SCID) mice, successful oncoretroviral gene transfer to transplantable hematopoietic cells has been achieved. However, because of the low frequency and/or homing efficiency of SCID repopulating cells (SRC) in bone marrow (BM), studies have primarily focused on cord blood (CB). The recently developed extended (| 60 days) long-term culture-initiating cell (ELTC-IC) assay detects an infrequent and highly quiescent candidate stem cell population in BM as well as CB of the CD34(+)CD38(-) phenotype. Although these characteristics suggest that ELTC-IC and SRC might be closely related, attempts to oncoretrovirally transduce ELTC-IC have been unsuccessful. Here, recently developed conditions (high concentrations of SCF + FL + Tpo in serum-free medium)
Thank you for your interest in spreading the word on Circulation Research.. NOTE: We only request your email address so that the person you are recommending the page to knows that you wanted them to see it, and that it is not junk mail. We do not capture any email address. ...
Nicotinic acid-adenine dinucleotide phosphate (NAADP) is a newly described Ca2+-mobilizing nucleotide that appears to target intracellular Ca2+-release channels distinct from those sensitive to inositol trisphosphate or ryanodine/cyclic ADP-ribose. Little, however, is known concerning the regulation of cellular NAADP levels. In the present study, we have characterized the metabolism of NAADP by brain membranes. From HPLC and MS analyses we show that loss of NAADP was associated with the appearance of a major product that is likely to be nicotinic acid-adenine dinucleotide (NAAD), the dephosphorylated form of NAADP. Dephosphorylation of NAADP, but not 3-NAADP, was dramatically attenuated by Ca2+ chelators and stimulated by Ca2+ over a physiological range in a calmodulin-insensitive manner. In contrast, NADP was metabolized predominantly to ADP-ribose phosphate via glycohydrolase activity, although slower Ca2+-dependent dephosphorylation of both NADP and 2-AMP could also be demonstrated. This is the
AllCells offers a wide selection of human primary cells and related products including Bone Marrow CD105+ Endothelial Cells from our AllCells.com store.
Star performers by no means think theyve identified check out this site a Mobilizer right until that individual has proved it along with her steps. Stars ordinarily ask stakeholders they think could be Mobilizers to put in place a gathering with essential selection makers or to offer info obtainable only by actively investigating an issue or conferring with colleagues. A person star performer from a worldwide telecommunications enterprise defined to us that she usually assessments what her consumer contacts convey to her theyre able to do ...
"Crystallographic studies on human BST-1/CD157 with ADP-ribosyl cyclase and NAD glycohydrolase activities". J. Mol. Biol. 316 (3 ... ADP-ribose + nicotinamide Thus, the two substrates of this enzyme are NAD+ and H2O, whereas its two products are ADP-ribose and ...
ADP-ribosyl cyclase) is a counter-receptor of CD31, an Ig superfamily member". J. Immunol. 160 (1): 395-402. PMID 9551996. ...
1995). "Assignment of CD38, the gene encoding human leukocyte antigen CD38 (ADP-ribosyl cyclase/cyclic ADP-ribose hydrolase), ... 1997). "Human gene encoding CD38 (ADP-ribosyl cyclase/cyclic ADP-ribose hydrolase): organization, nucleotide sequence and ... ADP-ribosyl cyclase/cyclic ADP-ribose hydrolase): organization, nucleotide sequence and alternative splicing". Gene. 186 (2): ... 1998). "Human CD38 (ADP-ribosyl cyclase) is a counter-receptor of CD31, an Ig superfamily member". J. Immunol. 160 (1): 395-402 ...
ADP-ribosyl cyclase 2 is an enzyme that in humans is encoded by the BST1 gene. Bone marrow stromal cell antigen-1 is a stromal ... 2002). "Crystallographic studies on human BST-1/CD157 with ADP-ribosyl cyclase and NAD glycohydrolase activities". J. Mol. Biol ... 1996). "Pancreatic islet cells express BST-1, a CD38-like surface molecule having ADP-ribosyl cyclase activity". Biochem. ...
... catalyzed by ADP-ribosyl cyclases) which are a family of enzymes that include CD38 and CD157 in mammals (and orthologs in sea ... because genetic knockout or knock-down of ADP-ribosyl cyclases has no effect on NAADP production in some cell types), and there ... "Acidic residues at the active sites of CD38 and ADP-ribosyl cyclase determine nicotinic acid adenine dinucleotide phosphate ( ... Cyclic ADP-ribose IP3 Clapper, David L.; Walseth, Timothy F.; Dargie, Peter J.; Lee, Hon Cheung (1987). "Pyridine Nucleotide ...
ADP-ribosyl cyclase/cyclic ADP-ribose hydrolase), to chromosome 4p15". Cytogenetics and Cell Genetics. 69 (1-2): 38-9. doi: ... ADP-ribosyl cyclase/cyclic ADP-ribose hydrolase): organization, nucleotide sequence and alternative splicing". Gene. 186 (2): ... ADP-ribosyl cyclase/cyclic ADP-ribose hydrolase): organization, nucleotide sequence and alternative splicing". Gene. 186 (2): ... States DJ, Walseth TF, Lee HC (December 1992). "Similarities in amino acid sequences of Aplysia ADP-ribosyl cyclase and human ...
... adp-ribosyl cyclase MeSH D08.811.913.400.725.115.680 --- pertussis toxin MeSH D08.811.913.400.725.115.690 --- poly(adp-ribose) ... adp-ribosyl cyclase MeSH D08.811.277.450.737.400.060.500 --- antigens, cd38 MeSH D08.811.277.450.770 --- oligo-1,6-glucosidase ... adenylate cyclase MeSH D08.811.520.650.200.040 --- adenylate cyclase toxin MeSH D08.811.520.650.600 --- guanylate cyclase MeSH ... adp-ribosylation factors MeSH D08.811.277.040.330.300.400.100.100 --- ADP-ribosylation factor 1 MeSH D08.811.277.040.330.300. ...
During the late 1980s, ADP-ribosyl cyclases, which catalyze the addition of cyclic-ADP-ribose groups to proteins, were ... ADP-ribosyltransferases can perform two types of modifications: mono-ADP ribosylation and poly-ADP ribosylation. Mono-ADP ... ADP-ribose) glycohydrolase, an enzyme that hydrolyses poly(ADP-ribose) to produce free ADP-ribose. Studies have shown poly-ADP- ... Hayaishi, O.; Ueda, K. (2012). Poly- and Mono(ADP-ribosyl)ation Reactions: Their Significance in Molecular Biology. In ADP- ...
Prasad GS, McRee DE, Stura EA, Levitt DG, Lee HC, Stout CD (1996). "Crystal structure of Aplysia ADP-ribosyl cyclase, a homolog ... cADPR is produced from nicotinamide adenine dinucleotide (NAD+) by ADP-ribosyl cyclases (EC 3.2.2.5) as part of a second ... monofunctional ADP ribosyl cyclase of the mollusc Aplysia). The same enzymes are also capable of hydrolyzing cADPR to ADPR. ... Hon Cheung Lee, the discoverer of cyclic ADP-ribose. Cyclic ADP-ribose and NAADP. The first book on these two second messengers ...
5-phospho-β-D-ribosyl)acetamidine ⇌ {\displaystyle \rightleftharpoons } ADP + 5-amino-1-(5-phospho-β-D-ribosyl)imidazole + ... It is a sequential mechanism in which ATP binds first to the enzyme and ADP is released last. This enzyme hydrolyzes ATP to ... The systematic name of this enzyme class is 2-(formamido)-N1-(5-phosphoribosyl)acetamidine cyclo-ligase (ADP-forming). Other ... ADP-forming), phosphoribosylaminoimidazole synthetase, and phosphoribosylformylglycinamidine cyclo-ligase. Purines are one of ...
... by ADP-ribosyl cyclases, as part of a second messenger system.[60] This molecule acts in calcium signaling by releasing calcium ... ADP-ribosyl)ation is carried out by the poly(ADP-ribose) polymerases.[54][57] The poly(ADP-ribose) structure is involved in the ... or the transferral of ADP-ribose to proteins in long branched chains, which is called poly(ADP-ribosyl)ation.[54] Mono-ADP- ... ADP-ribosylation involves either the addition of a single ADP-ribose moiety, in mono-ADP-ribosylation, ...
fGAR + L-Glutamine + ATP → fGAM + L-Glutamate + ADP + Pi The fifth is catalyzed by AIR synthetase (FGAM cyclase). fGAM + ATP → ... A key regulatory step is the production of 5-phospho-α-D-ribosyl 1-pyrophosphate (PRPP) by ribose phosphate pyrophosphokinase, ... PRPP + L-Glutamine + H2O → PRA + L-Glutamate + PPi In the second step react PRA, glycine and ATP to create GAR, ADP, and ... CAIR + L-Aspartate + ATP → SAICAR + ADP + Pi The eight is catalyzed by adenylosuccinate lyase. SAICAR → AICAR + Fumarate The ...
ADP-ribosyl-(dinitrogen reductase) hydrolase EC 3.2.2.25: N-methyl nucleosidase EC 3.2.2.26: futalosine hydrolase EC 3.2.2.27: ... drimenol cyclase EC 3.1.7.8: tuberculosinol synthase EC 3.1.7.9: isotuberculosinol synthase EC 3.1.7.10: (13E)-labda-7,13-dien- ... ADP-dependent short-chain-acyl-CoA hydrolase EC 3.1.2.19: ADP-dependent medium-chain-acyl-CoA hydrolase EC 3.1.2.20: acyl-CoA ... Now EC 3.6.5.6, tubulin GTPase EC 3.6.1.52: diphosphoinositol-polyphosphate diphosphatase EC 3.6.1.53: Mn2+-dependent ADP- ...
ADP ribosyl Cyclase. A Membrane-bound or cytosolic enzyme that catalyzes the synthesis of Cyclic ADP-Ribose (cADPR) from ... and sometimes the synthesis of Cyclic ADP-Ribose 2 phosphate (2-P-cADPR) from NADP. ... Nicotinamide Adenine Dinucleotide (NAD). This enzyme generally catalyzes the Hydrolysis of cADPR to ADP-Ribose, as well, ...
Synthesizes the second messengers cyclic ADP-ribose and nicotinate-adenine dinucleotide phosphate, the former a second ...
ADP-ribosyl cyclase/cyclic ADP-ribose hydrolase 2. Details. Name. ADP-ribosyl cyclase/cyclic ADP-ribose hydrolase 2. Synonyms. ... Cyclic ADP-ribose hydrolase 2. Gene Name. BST1. Organism. Humans. Amino acid sequence. ,lcl,BSEQ0002471,ADP-ribosyl cyclase/ ... lcl,BSEQ0010864,ADP-ribosyl cyclase/cyclic ADP-ribose hydrolase 2 (BST1) ... Crystallographic studies on human BST-1/CD157 with ADP-ribosyl cyclase and NAD glycohydrolase activities. J Mol Biol. 2002 Feb ...
The CD38-independent ADP-ribosyl cyclase from mouse brain synaptosomes: a comparative study of neonate and adult brain.. [ ... Nicotinamide guanine dinucleotide sodium salt, phospodiesterase and ADP-ribosyl cyclase substrate C21H28N7O15P2 ... We propose that this novel mammalian ADP-ribosyl cyclase regulates the production of cADPR and therefore calcium levels within ... We show that Cd38-/- synaptosome preparations contain high ADP-ribosyl cyclase activities, which are more important in neonates ...
What is ADP-ribosyl cyclase 2? Meaning of ADP-ribosyl cyclase 2 medical term. What does ADP-ribosyl cyclase 2 mean? ... Looking for online definition of ADP-ribosyl cyclase 2 in the Medical Dictionary? ADP-ribosyl cyclase 2 explanation free. ... ADP-ribosyl cyclase 2 , definition of ADP-ribosyl cyclase 2 by Medical dictionary https://medical-dictionary.thefreedictionary. ... redirected from ADP-ribosyl cyclase 2) BST1. A gene on chromosome 4p15 that encodes bone marrow stromal cell antigen-1, a ...
CD38 (ADP Ribosyl Cyclase I) Antibody - Without BSA and Azide, Mouse Monoclonal Antibody [Clone AT2 ] validated in IF, FC ( ... ADP-ribosyl cyclase/cyclic ADP-ribose hydrolase 1, 3.2.2.6, 2-phospho-ADP-ribosyl cyclase, 2-phospho-ADP-ribosyl cyclase/2- ... AH12734: CD38 (ADP Ribosyl Cyclase 1) Antibody - With BSA and Azide. AH12735: CD38 (ADP Ribosyl Cyclase 1) Antibody - Without ... ADP Ribosyl Cyclase I) Antibody - Without BSA and Azide CD38 (ADP Ribosyl Cyclase I) Antibody - Without BSA and Azide. Mouse ...
... the ADP-ribosyl cyclases. Not all ADP-ribosyl cyclases have been identified, and how production of different messengers is ... Here, we report the cloning and characterization of a novel ADP-ribosyl cyclase (SpARC4) from the sea urchin, a key model ... Like several other members of the ADP-ribosyl cyclase superfamily, SpARC4 is a glycoprotein targeted to the plasma membrane via ... and suggest that different ADP-ribosyl cyclases are fine-tuned to produce specific calcium-mobilizing messengers. ...
We focus on ADP-ribosyl cyclase/CD38 which synthesizes cyclic ADP-ribose (cADPR), a Ca2+ mobilizing messenger. Structural ... We focus on ADP-ribosyl cyclase/CD38 which synthesizes cyclic ADP-ribose (cADPR), a Ca2+ mobilizing messenger. Structural ... We focus on ADP-ribosyl cyclase/CD38 which synthesizes cyclic ADP-ribose (cADPR), a Ca2+ mobilizing messenger. Structural ... We focus on ADP-ribosyl cyclase/CD38 which synthesizes cyclic ADP-ribose (cADPR), a Ca2+ mobilizing messenger. Structural ...
... in which pathogenesis ADPR-cyclase is involved. BACKGROUND ART [0003] ADP-ribosyl cyclase (ADPR-cyclase) is widely distributed ... 0002] The present disclosure relates to bisphenyl compounds that are useful for inhibit the ADP-ribosyl cyclase (ADPR-cyclase ... The present disclosure relates to bisphenyl compounds that are useful for inhibiting the ADP-ribosyl cyclase (ADPR-cyclase). ... Patent application title: STILBENE DERIVATIVES FOR ADP-RIBOSYL CYCLASE INHIBITORS. Inventors: Uh-Hyun Kim (Jeonbuk, KR) Ho ...
Cyclic ADP-ribose hydrolase 1,I-19,Mouse,Mus musculus,NIM-R5 antigen - Gentaur molecular products ... Product ELISA ADP-ribosyl cyclase 1,cADPr hydrolase 1,Cd38, ... ELISA ADP-ribosyl cyclase 1,cADPr hydrolase 1,Cd38,Cyclic ADP- ... ELISA ADP-ribosyl cyclase 1,cADPr hydrolase 1,Cd38,Cyclic ADP-ribose hydrolase 1,I-19,Mouse,Mus musculus,NIM-R5 antigen mus ... Product name : ELISA ADP-ribosyl cyclase 1,cADPr hydrolase 1,Cd38,Cyclic ADP-ribose hydrolase 1,I-19,Mouse,Mus musculus,NIM-R5 ...
ADP-ribosyl cyclase activity measurement. To evaluate the activity of ADP-ribosyl cyclase, we used the ability of the cyclase ... de Toledo, F. G., Cheng, J., Liang, M., Chini, E. N. and Dousa, T. P. (2000). ADP-Ribosyl cyclase in rat vascular smooth muscle ... ADP-ribosyl cyclase activity and cADPR-induced Ca2+ oscillations. As previously reported in biochemical studies on subcellular ... Both ADP-ribosyl cyclase inhibitors (ZnCl2 and the anti-CD38 antibody) and methoctramine (10 μM) inhibited the ACh-induced ...
Cyclic ADP-ribose (cADPR) and nicotinic acid adenine dinucleotide phosphate (NAADP) mobilize Ca2+ from two different types of ... ADP-ribosyl cyclase. In this article the recent progress in understanding the physiological roles of cADPR and NAADP is briefly ... which takes into consideration the crystallographic structure of ADP-ribosyl cyclase and accounts for its novel multi- ... A unified mechanism of enzymatic synthesis of two calcium messengers: cyclic ADP-ribose and NAADP Biol Chem. Jul-Aug 1999;380(7 ...
Replacing the base N9-ribose with a butyl chain generates inhibitors of cADPR hydrolysis by the human ADP-ribosyl cyclase CD38 ... Replacing the base N9-ribose with a butyl chain generates inhibitors of cADPR hydrolysis by the human ADP-ribosyl cyclase CD38 ... Cyclic adenosine 5-diphosphate ribose analogs without a "southern" ribose inhibit ADP-ribosyl cyclase-hydrolase CD38. ... ADP-ribosyl Cyclase 1, Catalytic Domain, Chemistry Techniques, Synthetic, Chromatography, High Pressure Liquid, Crystallography ...
Because cyclic ADP-ribose (cADPR) regulates ryanodine receptors and is synthesized from beta-NAD(+), we investigated the ... ADP-ribosyl Cyclase, ADP-ribosyl Cyclase 1, Animals, Antigens, CD, Antigens, Differentiation, Hypertension, Pulmonary, Hypoxia ... Adp-ribosyl cyclase and cyclic ADP-ribose hydrolase act as a redox sensor. a primary role for cyclic ADP-ribose in hypoxic ... Adp-ribosyl cyclase and cyclic ADP-ribose hydrolase act as a redox sensor. a primary role for cyclic ADP-ribose in hypoxic ...
Cluster: ADP-ribosyl cyclase/cyclic ADP-ribose hydrolase 1. 7. Full view ... Cluster: ADP-ribosyl cyclase/cyclic ADP-ribose hydrolase 1. 98. Full view ...
Knockdown of caveolin-1, cavin-1 or cavin-3 (using siRNA) all significantly reduced CD38 expression and ADP-ribosyl cyclase ... a membrane-associated bifunctional enzyme regulating cyclic ADP ribose), and enhances agonist-induced intracellular Ca2 + ([Ca2 ...
It is an ectoenzyme that has both cyclic ADP-ribose hydrolase and ADP-ribosyl cyclase activities. CD157 is expressed as a ... BST1; Bone marrow stromal antigen 1; ADP-ribosyl cyclase 2; cADPr hydrolase. ... ADP-ribosyl cyclase 2, and cADPr hydrolase 2. CD157 is a 40-46 kDa glycophosphatidylinositol-linked cell membrane glycoprotein ...
ADP-ribosyl cyclase 1; Cyclic ADP-ribose hydrolase 1; I-19; NIM-R5. ... The CD38 molecule is reported to exhibit both cyclase and hydrolase activities and plays a role in lymphocyte activation. CD31 ...
ADP-ribosyl cyclase (ADPR cyclase) and ryanodine receptors (RyR) take part in. ADP-ribosyl cyclase (ADPR cyclase) and ryanodine ...
ADP-Ribosylcyclase none. Agarase 3.2.1.81. Alanine Aminopeptidase 3.4.11.14. L-Alanine Dehydrogenase 1.4.1.1. ... Adenylate Cyclase 4.6.1.1. 5-Adenylic Acid Deaminase 3.5.4.6. Adenylosuccinate Lyase 4.3.2.2. ...
ADP ribosyl cyclase 1. *ADP ribosyl cyclase/cyclic ADP-ribose hydrolase. *ADP-ribosyl cyclase 1 ... Synthesizes cyclic ADP-ribose, a second messenger for glucose-induced insulin secretion. Also has cADPr hydrolase activity. ... ADP ribosyl cyclase. * ...
ADP ribosyl-cyclases ( CD38 / CD157 ), social skills and friendship. Psychoneuroendocrinology, Vol. 78, Issue. , p. 185. ... ADP ribosyl-cyclases ( CD38 / CD157 ), social skills and friendship. Psychoneuroendocrinology, Vol. 78, Issue. , p. 185. ...
ADP ribosyl cyclase 2 antibody. *ADP-ribosyl cyclase 2 antibody. *ADP-ribosyl cyclase/cyclic ADP-ribose hydrolase 2 antibody ... Synthesizes the second messagers cyclic ADP-ribose and nicotinate-adenine dinucleotide phosphate, the former a second messenger ...
ADP-ribosyl cyclase 1 [EC:3.2.2.6 2.4.99.20] K01510 ENTPD1_3_8; apyrase [EC:3.6.1.5] K01510 ENTPD1_3_8; apyrase [EC:3.6.1.5] ... ADP-ribosyl cyclase 2 [EC:3.2.2.6 2.4.99.20] K07981 KIR2DL; killer cell immunoglobulin-like receptor 2DL K07981 KIR2DL; killer ... 417 ART1; ADP-ribosyltransferase 1 420 ART4; ADP-ribosyltransferase 4 (Dombrock blood group) 23439 ATP1B4; ATPase Na+/K+ ... ADP-ribosyltransferase 1 [EC:2.4.2.31] K06717 ART4; ADP-ribosyltransferase 4 [EC:2.4.2.31] K01540 ATP1B; sodium/potassium- ...
  • G s α is a substrate for mono(ADP-ribosyl)transferase of NG108-15 cells. (portlandpress.com)
  • ADP-ribosyl transferase activity of CT is stimulated in vitro by the presence of accessory proteins called ARFs ( 49 ), small GTP-binding proteins known to be involved in vesicle trafficking within the eukaryotic cell, but the role of ARFs in the activity of CT in vivo has not yet been determined. (asm.org)
  • Synthesizes the second messagers cyclic ADP-ribose and nicotinate-adenine dinucleotide phosphate, the former a second messenger that elicits calcium release from intracellular stores. (drugbank.ca)
  • Therefore, it is possible that pharmacological manipulation of intracellular cADPR levels through ADP-ribosyl cyclase activity or expression, in the CNS may provide new therapeutic opportunities for treatment of neurological disorders. (elsevier.com)
  • BST1_HUMAN ] Synthesizes cyclic ADP-ribose, a second messenger that elicits calcium release from intracellular stores. (proteopedia.org)
  • Upon entry into enterocytes by endocytosis and following reduction and translocation, CT-A1 ADP-ribosylates a regulatory G-protein (Gsα), which leads to constitutive activation of adenylate cyclase, increased intracellular concentration of cyclic AMP, and secretion of fluid and electrolytes into the lumen of the small intestine ( 12 ). (asm.org)
  • In contrast, A2A and A2B receptors are coupled with G proteins Gs or Gq and activate adenylyl cyclase or phospholipase C. Moreover, all adenosine receptors activate mitogen-activated protein kinase (MAPK) pathways, which include extracellular signal regulated kinase 1 (ERK1), ERK2, Jun N-terminal kinase, and p38 MAPK. (hindawi.com)
  • Because cyclic ADP-ribose (cADPR) regulates ryanodine receptors and is synthesized from beta-NAD(+), we investigated the regulation by beta-NADH of cADPR synthesis and metabolism and the role of cADPR in hypoxic pulmonary vasoconstriction. (ox.ac.uk)
  • The A1 polypeptide of CT also has limited regions of homology with other ADP-ribosylating toxins ( 7 ), including pertussis toxin (PT), diphtheria toxin (DT), and exotoxin A (ET-A). The three-dimensional structures of these toxins have been determined ( 1 , 3 , 40-42 , 50 ). (asm.org)
  • In beta N22 cells 'basal' adenylate cyclase activity measured in the presence of Mg2+ was significantly greater than that in wild-type NG108-15 or beta N17 cells. (portlandpress.com)
  • Both isoprenaline and iloprost were able to stimulate adenylate cyclase activity in each of beta N22 and beta N17 membranes. (portlandpress.com)
  • The high basal adenylate cyclase activity of beta N22 cell membranes was not a reflection of higher levels of expression of the adenylate cyclase catalytic unit, as adenylate cyclase activity measured in the presence of Mn2+ was equivalent in membranes of each of wild-type NG108-15 cells and clones beta N22 and beta N17. (portlandpress.com)
  • Basal adenylate cyclase activity measured in the presence of Mg2+ in clone beta N22 was significantly reduced, however, by the beta-receptor antagonist propranolol, whereas this agent was without effect on basal adenylate cyclase activity in membranes of wild-type NG108-15 cells. (portlandpress.com)
  • These data indicate that the elevated basal adenylate cyclase cascade in NG108-15 cells expressing high levels of the beta 2 adrenoceptor represents empty receptor activation of the signalling cascade. (portlandpress.com)
  • Cyclic ADP Ribose, frequently abbreviated as cADPR, is a cyclic adenine nucleotide (like cAMP) with two phosphate groups present on 5' OH of the adenosine (like ADP), further connected to another ribose at the 5' position, which, in turn, closes the cycle by glycosidic bonding to the nitrogen 1 (N1) of the same adenine base (whose position N9 has the glycosidic bond to the other ribose). (wikipedia.org)
  • Synthesizes cyclic ADP-ribose, a second messenger for glucose-induced insulin secretion. (abcam.com)