- NAD(P)(+)—protein-arginine ADP-ribosyltransferase
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NAD(P)+-protein-arginine ADP-ribosyltransferase Identifiers EC number 2.4.2.31 CAS number 81457-93-4 Databases IntEnz IntEnz view BRENDA BRENDA entry ExPASy NiceZyme view KEGG KEGG entry MetaCyc metabolic pathway PRIAM profile PDB structures RCSB PDB PDBe PDBsum Gene Ontology AmiGO / EGO Search PMC articles PubMed articles ART 
crystal structure of the eucaryotic mono-adp-ribosyltransferase art2.2; crystal form c (p3121) Identifiers Symbol ART Pfam PF01129 Pfam clan CL0084 InterPro IPR000768 SMART START PROSITE PDOC00993 SCOP 1gy0 Available protein structures: Pfam structures PDB RCSB PDB; PDBe PDBsum structure summary In enzymology, a NAD(P)+-protein-arginine ADP-ribosyltransferase (EC 2.4.2.31) is an enzyme that catalyzes the chemical reaction using nicotinamide adenine dinucleotide
- NAD+ + protein L-arginine
nicotinamide + Nomega-(ADP-D-ribosyl)-protein-L-arginine NADP+ + protein L-arginine nicotinamide + Nomega-[(2'-phospho-ADP)-D-ribosyl]-protein-L-arginine
as well as the corresponding reaction using nicotinamide adenine dinucleotide phosphate
- NADP+ + protein L-arginine nicotinamide + Nomega-(ADP-D-ribosyl)-protein-L-arginine NADP+ + protein L-arginine nicotinamide + Nomega-[(2'-phospho-ADP)-D-ribosyl]-protein-L-arginine
Thus, the two substrates of this enzyme are NAD+ (or NADP+) and protein L-arginine, whereas its two products are nicotinamide and Nomega-(ADP-D-ribosyl)-protein-L-arginine (or Nomega-[(2'-phospho-ADP)-D-ribosyl]-protein-L-arginine, respectively).
This enzyme belongs to the family of glycosyltransferases, specifically the pentosyltransferases. The systematic name of this enzyme class is NAD(P)+:protein-L-arginine ADP-D-ribosyltransferase. Other names in common use include ADP-ribosyltransferase, mono(ADP-ribosyl)transferase, NAD+:L-arginine ADP-D-ribosyltransferase, NAD(P)+-arginine ADP-ribosyltransferase, and NAD(P)+:L-arginine ADP-D-ribosyltransferase.
At least five forms of the enzyme have been characterised to date, some of which are attached to the membrane via glycosylphosphatidylinositol (GPI) anchors, while others appear to be secreted. The enzymes contain ~250-300 residues, which encode putative signal sequences and carbohydrate attachment sites. In addition, the N- and C-termini are predominantly hydrophobic, a characteristic of GPI-anchored proteins.[1]
Structural studies
As of late 2007, 6 structures have been solved for this class of enzymes, with PDB accession codes 1GXY, 1GXZ, 1GY0, 1OG1, 1OG3, and 1OG4.
References
- ^ Okazaki IJ, Zolkiewska A, Nightingale MS, Moss J (November 1994). "Immunological and structural conservation of mammalian skeletal muscle glycosylphosphatidylinositol-linked ADP-ribosyltransferases". Biochemistry 33 (43): 12828–36. doi:10.1021/bi00209a014. PMID 7947688.
Further reading
- Moss J, Stanley SJ, Oppenheimer NJ (1979). "Substrate specificity and partial purification of a stereospecific NAD- and guanidine-dependent ADP-ribosyltransferase from avian erythrocytes". J. Biol. Chem. 254 (18): 8891–4. PMID 225315.
- Moss J, Stanley SJ, Watkins PA (1980). "Isolation and properties of an NAD- and guanidine-dependent ADP-ribosyltransferase from turkey erythrocytes". J. Biol. Chem. 255 (12): 5838–40. PMID 6247348.
- Ueda K, Hayaishi O (1985). "ADP-ribosylation". Annu. Rev. Biochem. 54 (1): 73–100. doi:10.1146/annurev.bi.54.070185.000445. PMID 3927821.
2.4.2: Pentosyl-
transferasesOtherOther2.4.99: Sialyl
transferasesThis article includes text from the public domain Pfam and InterPro IPR000768
Categories:- Enzyme stubs
- EC 2.4.2
- NADPH-dependent enzymes
- NADH-dependent enzymes
- Enzymes of known structure
- NAD+ + protein L-arginine
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