1pax | pdb_00001pax

THE CATALYTIC FRAGMENT OF POLY(ADP-RIBOSE) POLYMERASE COMPLEXED WITH 3,4-DIHYDRO-5-METHYL-ISOQUINOLINONE

spinqualitylabelsall models 1pax, resolution 2.40Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 1pax is a 1 chain structure with sequence from Chick. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Ligands: DHQ Activity: NAD(+) ADP-ribosyltransferase, with EC number 2.4.2.30 Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Function [PARP1_CHICK] Poly[ADP-ribose] polymerase 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. Evolutionary Conservation Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf. Publication Abstract from PubMed The crystal structures of the catalytic fragment of chicken poly(ADP-ribose) polymerase [NAD+ ADP-ribosyltransferase; NAD+:poly(adenosine-diphosphate-D-ribosyl)-acceptor ADP-D-ribosyltransferase, EC 2.4.2.30] with and without a nicotinamide-analogue inhibitor have been elucidated. Because this enzyme is involved in the regulation of DNA repair, its inhibitors are of interest for cancer therapy. The inhibitor shows the nicotinamide site and also suggests the adenosine site. The enzyme is structurally related to bacterial ADP-ribosylating toxins but contains an additional alpha-helical domain that is suggested to relay the activation signal issued on binding to damaged DNA. Structure of the catalytic fragment of poly(AD-ribose) polymerase from chicken.,Ruf A, Mennissier de Murcia J, de Murcia G, Schulz GE Proc Natl Acad Sci U S A. 1996 Jul 23;93(15):7481-5. PMID:8755499 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See Also Poly(ADP-ribose) polymerase 3D structures

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