BACKGROUND: Cyclic ADP-ribose (cADPR) has been shown to act as a potent cytosolic mediator in a variety of tissues, regulating the release of Ca2+ from intracellular stores by a mechanism that involves ryanodine receptors. There is controversy over the effects of cADPR in cardiac muscle, although one possibility is that endogenous cADPR increases the Ca2+ sensitivity of Ca2+-induced Ca2+ release (CICR) from the sarcoplasmic reticulum. We investigated this possibility using 8-amino-cADPR, which has been found to antagonize the Ca2+-releasing effects of cADPR on sea urchin egg microsomes and in mammalian cells (Purkinje neurons, Jurkat T cells, smooth muscle and PC12 cells). RESULTS: In intact cardiac myocytes isolated from guinea-pig ventricle, cytosolic injection of 8-amino-cADPR substantially reduced contractions and Ca2+ transients accompanying action potentials (stimulated at 1Hertz). These reductions were not seen with injection of HEPES buffer, with heat-inactivated 8-amino-cADPR, or in cells
Adenosine 5-diphosphate (ADP)-ribosylation is a protein posttranslational modification that is catalyzed by ADP-ribosyltransferases (ARTs), using nicotinamide adenine dinucleotide (NAD+) as a substrate. Mono-ribosylation can be extended into polymers of ADP-ribose (PAR). Poly(ADP-ribosyl)polymerase (PARP) 1, the best-characterized cellular enzyme catalyzing this process, is the prototypical member of a family of mono- and poly(ADP-ribosyl)transferases. The physiological consequences of ADP-ribosylation are inadequately understood. PARP2010, the 18th International Conference on ADP-Ribosylation, attracted scientists from all over the world to Zurich, Switzerland. Highlights from this meeting include promising clinical trials with PARP inhibitors and new insights into cell, structural, and developmental biology of ARTs and the (glyco)hydrolase proteins that catalyze de-ADP-ribosylation of mono- or poly-ADP-ribosylated proteins. Moreover, potential links to the NAD-dependent sirtuin family were ...
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+
Earlier we demonstrated that meta-iodobenzylguanidine (MIBG), a specific inhibitor of arginine mono-ADP-ribosylation blocks proliferation and differentiation of chick skeletal myogenic cells in...
APPR is the term used to describe NY States teacher and principal evaluation system. Below are 2012-13 Education Law §3012-c APPR data for teachers and principals. Data has only been included for those districts, BOCES, and charter schools with an approved APPR plan for the 2012-13 school year. Each classroom teacher and building principal must receive an overall rating of Highly Effective, Effective, Developing, or Ineffective (HEDI). This rating is based on a single composite effectiveness score (ranging from 0-100 points) that is calculated based on the scores received by the teacher or principal in each of the three subcomponents (State Growth or Other Comparable Measures, Locally-Selected Measures, and Other Measures of Educator Effectiveness).. The figure below shows the percentage of educators in each rating category for the three subcomponents and the Overall Composite score, as well as the percentage of educators in each transition rating category for the Transition Overall Composite ...
Mono-ADP-ribosyltransferase that mediates mono-ADP-ribosylation of target proteins (By similarity). Plays a role in nuclear envelope stability and nuclear remodeling during spermiogenesis (PubMed:25673562).
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BFA induces the ADP-ribosylation of BARS-50 and GAPDH in permeabilized cells. (A) RBL cells were permeabilized with 3 U/ml SLO and exposed to 10 μg/ml BFA
Myc-DDK-tagged ORF clone of Homo sapiens ADP-ribosylation factor-like 5C (ARL5C) as transfection-ready DNA - 10 µg - OriGene - cdna clones
DABBS Eric r. , YAZAWA Katsukiyo , TANAKA Yasushi , MIKAMI Yuzuru , MIYAJI Makoto , ANDERSEN Susan j. , MORISAKI Naoko , IWASAKI Shigeo , SHIDA Osamu , TAKAGI Hiroaki , KADOWAKI Kiyoshi Journal of antibiotics 48(8), 815-819, 1995-08-25 J-STAGE 参考文献12件 被引用文献2件 ...
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ADP-ribosylation of proteins occurs in many eukaryotes, and it is also the mechanism of action of a growing number of important bacterial toxins. To date, however, there is only one well-characterized ADP-ribosylation system where the ADP-ribosyltransferase and the substrate protein are both bacterial in origin, namely within the nitrogen-fixing bacterium Rhodospirillum rubrum. The present paper demonstrates the endogenous ADP-ribosylation of two proteins of Mr 32,000 and 20,000 within Pseudomonas maltophilia, a Gram-negative aerobe. The proteins have been partially purified: two apparently separate species of modified protein can be separated by ion-exchange chromatography and gel filtration (V0 and Mr 158,000 - Vi). The substrate protein(s) either has, or is co-eluted with, NAD+ glycohydrolase activity. The modification is mono-ADP-ribosyl in nature. The linkage between the acceptor amino acid and the ADP-ribose moiety is alkali-labile and stable to hydroxylamine, possibly indicating an ...
The quantitative determination of pertussis-toxin-sensitive guanine-nucleotide-binding proteins (G-proteins) in cell membranes is still a problem. Pertussis-toxin-catalysed [32P]ADP-ribosylation strongly relies on the substrate quality of the alpha-subunits and is influenced by the concentration of nucleotides, beta gamma-subunits, the physicochemical properties of the membranes influencing the availability of Gi alpha for pertussis toxin, and covalent modification of Gi alpha. Quantification of immunoreactive material on Western blots can be only imprecisely performed by two-dimensional densitometry. In order to generate a method for quantification of pertussis-toxin-sensitive G-proteins in membranes we have developed a fast and sensitive radioimmunoassay. The C-terminal decapeptide of retinal transducin alpha (KENLKDCGLF) was 125I-labelled and used as tracer. Polyclonal antiserum (DS 4) was raised against this peptide. Gi alpha proteins were determined by competition of solubilized membranes ...
Looking for online definition of ADP-ribosylation factor-like tumour-suppressor protein 1 in the Medical Dictionary? ADP-ribosylation factor-like tumour-suppressor protein 1 explanation free. What is ADP-ribosylation factor-like tumour-suppressor protein 1? Meaning of ADP-ribosylation factor-like tumour-suppressor protein 1 medical term. What does ADP-ribosylation factor-like tumour-suppressor protein 1 mean?
Implications for Modulating the Function of Sir2 Proteins. The p53 tumor suppressor protein has been implicated to be a regulated target for both acetylation and deacetylation in vivo. In particular, several studies have demonstrated that the targeted acetylation of lysine residues at the C terminus of p53 by the transcription coactivators CBP/p300 and P/CAF promotes the stability and transcriptional activation properties of p53 (20-23). More recent studies have shown that the Sir2 homologue from humans, SIRT1, specifically deacetylates p53 in vivo to negatively regulate its activities associated with cellular senescence, apoptosis, and DNA repair (24-27). In light of these recent findings, it may be attractive to develop specific inhibitors to SIRT1 to elevate p53 function in cancer cells. In addition, Sir2-specific inhibitors may be useful as reagents to probe other functions for Sir2 proteins in vivo. Using a cell-based chemical screen, Schreiber and colleagues (28) have identified several ...
An enzyme that catalyzes the Transfer of the ADP-Ribose moiety from NAD+ or NADP+ to specific protein substrates with Arginine, Arginine-type compounds, Agmatine, or Guanidine as acceptors. This mono-ADP-ribosylation reaction is the mechanism of action common to several Bacterial Toxins affecting profound changes in cellular Metabolism, such as activation of Adenylate Cyclase, Regulation of protein synthesis at the level of Elongation Factor 2, and Ion Transport across biological Membranes ...
Clostridium botulinum C3 exoenzyme inactivates the small GTP-binding protein family Rho by ADP-ribosylating asparagine 41, which depolymerizes the actin cytoskeleton. C3 thus represents a major family of the bacterial toxins that transfer the ADP-ribose moiety of NAD to specific amino acids in acceptor proteins to modify key biological activities in eukaryotic cells, including protein synthesis, differentiation, transformation, and intracellular signaling. The 1.7 A resolution C3 exoenzyme structure establishes the conserved features of the core NAD-binding beta-sandwich fold with other ADP-ribosylating toxins despite little sequence conservation. Importantly, the central core of the C3 exoenzyme structure is distinguished by the absence of an active site loop observed in many other ADP-ribosylating toxins. Unlike the ADP-ribosylating toxins that possess the active site loop near the central core, the C3 exoenzyme replaces the active site loop with an alpha-helix, alpha3. Moreover, structural ...
ADP-ribosylation is the addition of one or more ADP-ribose moieties to a protein. It is a reversible post-translational modification that is involved in many cellular processes, including cell signaling, DNA repair, gene regulation and apoptosis. Improper ADP-ribosylation has been implicated in some forms of cancer. It is also the basis for the toxicity of bacterial compounds such as cholera toxin, diphtheria toxin, and others. The first suggestion of ADP-ribosylation surfaced during the early 1960s. At this time, Pierre Chambon and coworkers observed the incorporation of ATP into hen liver nuclei extract. After extensive studies on the acid insoluble fraction, several different research laboratories were able to identify ADP-ribose, derived from NAD+, as the incorporated group. Several years later, the enzymes responsible for this incorporation were identified and given the name poly (ADP-ribose) polymerase. Originally, this group was thought to be a linear sequence of ADP-ribose units ...
Ecto-ADP-ribosyltransferase 4 is an enzyme that in humans is encoded by the ART4 gene. ART4 has also been designated as CD297 (cluster of differentiation 297). This gene encodes a protein that contains a mono-ADP-ribosylation (ART) motif. It is a member of the ADP-ribosyltransferase gene family but enzymatic activity has not been demonstrated experimentally. Antigens of the Dombrock blood group system are located on the gene product, which is glycosylphosphatidylinositol-anchored to the erythrocyte membrane. Allelic variants, some of which lead to adverse transfusion reactions, are known. Several antigens have been recognised in this family. These are DO*A, DO*JO1, DO*A-WL, DO*DOYA, DO*B, DO*B-WL, DO*B-SH-Q149K, DO*B-(WL)-I175N, DO*HY1, DO*HY2 and DO*DOMR. Model organisms have been used in the study of ART4 function. A conditional knockout mouse line called Art4tm1a(KOMP)Wtsi was generated at the Wellcome Trust Sanger Institute. Male and female animals underwent a standardized phenotypic screen ...
NAD glycohydrolases are enzymes that catalyze the hydrolysis of NAD to produce ADP-ribose and nicotinamide. Regulation of these enzymes has not been fully elucidated. We have identified a NAD-glycohydrolase activity associated with the outer surface of the plasma membrane in human lung epithelial cell line A549. This activity is negatively regulated by its substrate beta-NAD but not by alpha-NAD. Partial restoration of NADase activity after incubation of the cells with arginine or histidine, known ADP-ribose acceptors, suggests that inhibition be regulated by ADP-ribosylation. A549 do not undergo to apoptosis upon NAD treatment indicating that this effect be likely mediated by a cellular component(s) lacking in epithelial cells. ...
endomembrane system, intracellular, GTPase activator activity, Rab GTPase binding, activation of GTPase activity, intracellular protein transport, regulation of vesicle fusion
Pierisin-1 is an 850-aa cytotoxic protein found in the cabbage butterfly, Pieris rapae, and has been suggested to consist of an N-terminal region with ADP-ribosyltransferase domain and of a C-terminal region that might have a receptor-binding domain.
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Pearson D, Hienzsch A, Wagner M, Globisch D, Reiter V, Özden D, Carell T Chem. Commun. 47 (18) 5196 [2011-00-00; online 2011-00-00] RNA nucleosides are often naturally modified into complex non-canonical structures with key biological functions. Here we report LC-MS quantification of the Ar(p) and Gr(p) 2-ribosylated nucleosides in tRNA using deuterium labelled standards, and the first detection of Gr(p) in complex fungi. Fellow QC bibliography QC xrefs PubMed 21448475. DOI 10.1039/c1cc11011j. Crossref 10.1039/c1cc11011j. ...
ID: http://www.ncbi.nlm.nih.gov/gene/390790 Type: http://bio2vec.net/ontology/gene Label: ARL5C Synonyms: ARL5C, ARL12, ADP ribosylation factor like GTPase 5C, putative ADP-ribosylation factor-like protein 5C, ADP-ribosylation factor-like 5C, ADP-ribosylation factor-like protein 12 Alternative IDs: als API: GO SPARQL: GO ...
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 ...
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Apr 30, 2014 - Audience: Principals and District Leaders Description Systematizing communications on APPR Leveraging elements of the system to deliver feedback and inform developments Calibrated use of Evaluation ...
View mouse Macrod2 Chr2:140395309-142392966 with: phenotypes, sequences, polymorphisms, proteins, references, function, expression
basis of record Boxshall, G. (2001). Copepoda (excl. Harpacticoida), in: Costello, M.J. et al. (Ed.) (2001). European register of marine species: a check-list of the marine species in Europe and a bibliography of guides to their identification. Collection Patrimoines Naturels, 50: pp. 252-268 (look up in IMIS) [details] ...
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
Cyclic adenosine diphosphate ribose (cADPR) is a potent endogenous calcium-mobilizing agent synthesized from beta-NAD+ by ADP-ribosyl cyclases in sea urchin eggs and in several mammalian cells (Galione, A., and White, A. (1994) Trends Cell Biol. 4, 431 436). Pharmacological studies suggest that cADPR is an endogenous modulator of Ca2+-induced Ca2+ release mediated by ryanodine-sensitive Ca2+ release channels. An unresolved question is whether cADPR can act as a Ca2+-mobilizing intracellular messenger. We show that exogenous application of nitric oxide (NO) mobilizes Ca2+ from intracellular stores in intact sea urchin eggs and that it releases Ca2+ and elevates cADPR levels in egg homogenates. 8-Amino-cADPR, a selective competitive antagonist of cADPR-mediated Ca2+ release, and nicotinamide, an inhibitor of ADP-ribosyl cyclase, inhibit the Ca2+-mobilizing actions of NO, while, heparin, a competitive antagonist of the inositol 1,4,5-trisphosphate receptor, did not affect NO-induced Ca2+ release. Since the
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 ...
TY - JOUR. T1 - Insights into the biogenesis, function, and regulation of ADP-ribosylation. AU - Cohen, Michael S.. AU - Chang, Paul. N1 - Publisher Copyright: © 2018 Nature America, Inc., part of Springer Nature. All rights reserved.. PY - 2018/2/14. Y1 - 2018/2/14. N2 - ADP-ribosylation - the transfer of ADP-ribose (ADPr) from NAD + onto target molecules - is catalyzed by members of the ADP-ribosyltransferase (ART) superfamily of proteins, found in all kingdoms of life. Modification of amino acids in protein targets by ADPr regulates critical cellular pathways in eukaryotes and underlies the pathogenicity of certain bacteria. Several members of the ART superfamily are highly relevant for disease; these include the poly(ADP-ribose) polymerases (PARPs), recently shown to be important cancer targets, and the bacterial toxins diphtheria toxin and cholera toxin, long known to be responsible for the symptoms of diphtheria and cholera that result in morbidity. In this Review, we discuss the ...
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D. Jones, B. Bax, S. Cockcroft; ADP-ribosylation factor GTPases in signal transduction and membrane traffic: independent functions?. Biochem Soc Trans 1 August 1999; 27 (4): 642-647. doi: https://doi.org/10.1042/bst0270642. Download citation file:. ...
COPⅠ囊泡:最初研究者利用三磷酸鳥苷(GTP)衍生物GTPγS(一種富含高爾基體膜的細胞質與抗水解的GTP衍生物)共培養時,發現高爾基體池之間存在一種囊泡轉運結構[9](後來在真核細胞中也證實此結構的存在[10])。除了脂質成分外,參與此囊泡形成的成份還有7種外被體蛋白(即外被體α、β、β′、γ、δ、ε、ζ)。這些外被體蛋白相互作用形成的復合物就是COPⅠ囊泡[11][12]。亞單位α、β′、ε在結構上與網格蛋白及COPⅡ囊泡的外層組分具有較高的一致性,形成復合物的內層組分稱為B亞復合物(主要負責與靶蛋白結合),而亞單位β、γ、δ、ζ 與網格蛋白及COPⅡ囊泡的內層組分相似,形成復合物的內層組分稱為F亞復合物,該亞復合物主要負責與靶蛋白結合,並且直接與COPⅠ囊泡形成的招募者ADP核糖基化因子(英语:ADP ribosylation factor)(ADP ribosylation ...
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