ISDA: 1PAX

Deposition Date 1996-05-06

Release Date 1997-05-15

Last Version Date 2024-02-14

Entry Detail

PDB ID:

1PAX

Keywords:

TRANSFERASE

Title:

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

Biological Source:

Source Organism:

Gallus gallus (Taxon ID: 9031)

Host Organism:

Spodoptera frugiperda

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

2.40 Å

R-Value Free:

0.24

R-Value Work:

0.16

R-Value Observed:

0.16

Space Group:

P 21 21 21

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Macromolecular Entities

Structures with similar UniProt ID

Protein Blast

Polymer Type:polypeptide(L)
Molecule:POLY(ADP-RIBOSE) POLYMERASE
Gene (Uniprot):PARP1
Chain IDs:A
Chain Length:361
Number of Molecules:1
Biological Source:Gallus gallus

UniProt ID:P26446 Pfam ID:PF02877, PF00644

Ligand Molecules

DHQ

Primary Citation

Structure of the catalytic fragment of poly(ADP-ribose) polymerase from chicken.

Ruf, A, Mennissier de Murcia, J, de Murcia, G, Schulz, G.E, Jung, S, Miranda, E.A, Menissier De Murcia, J, Niedergang, C, Delarue, M, Schulz, G.E, De Murcia, G.M.Show

Proc.Natl.Acad.Sci.USA 93 7481 7485 (1996)

PMID: 8755499 DOI: 10.1073/pnas.93.15.7481

Abstact

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.

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Protein

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Primary Citation of related structures

Abstact

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