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4PAX

THE CATALYTIC FRAGMENT OF POLY(ADP-RIBOSE) POLYMERASE COMPLEXED WITH 8-HYDROXY-2-METHYL-3-HYDRO-QUINAZOLIN-4-ONE

Functional Information from GO Data
ChainGOidnamespacecontents
A0003950molecular_functionNAD+ poly-ADP-ribosyltransferase activity
Functional Information from PDB Data
site_idAC1
Number of Residues7
DetailsBINDING SITE FOR RESIDUE NU1 A 1
ChainResidue
AHIS862
AGLY863
ATYR896
APHE897
ALYS903
ASER904
ATYR907

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues117
DetailsDomain: {"description":"PARP alpha-helical","evidences":[{"source":"PROSITE-ProRule","id":"PRU00398","evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues1
DetailsActive site: {"description":"For poly [ADP-ribose] polymerase activity","evidences":[{"source":"UniProtKB","id":"P09874","evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

site_idSWS_FT_FI3
Number of Residues5
DetailsBinding site: {"evidences":[{"source":"UniProtKB","id":"Q9UGN5","evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

Catalytic Information from CSA
site_idCSA1
Number of Residues2
DetailsAnnotated By Reference To The Literature 1a26
ChainResidueDetails
ATYR907
AGLU988

site_idMCSA1
Number of Residues3
DetailsM-CSA 76
ChainResidueDetails
ASER904electrostatic stabiliser
ATYR907electrostatic stabiliser, hydrogen bond donor, van der waals interaction
AGLU988electrostatic stabiliser, hydrogen bond acceptor, hydrogen bond donor, proton acceptor, proton donor

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PDB entries from 2025-07-23

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