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1G73

CRYSTAL STRUCTURE OF SMAC BOUND TO XIAP-BIR3 DOMAIN

Functional Information from GO Data
ChainGOidnamespacecontents
A0005739cellular_componentmitochondrion
A0006915biological_processapoptotic process
B0005739cellular_componentmitochondrion
B0006915biological_processapoptotic process
Functional Information from PDB Data
site_idAC1
Number of Residues4
DetailsBINDING SITE FOR RESIDUE ZN B 501
ChainResidue
CCYS300
CCYS303
CHIS320
CCYS327

site_idAC2
Number of Residues4
DetailsBINDING SITE FOR RESIDUE ZN D 502
ChainResidue
DCYS300
DCYS303
DHIS320
DCYS327

Functional Information from PROSITE/UniProt
site_idPS01282
Number of Residues66
DetailsBIR_REPEAT_1 BIR repeat. YeaRiftfgt.Wiysvnkeqlar...AGFyAlgegDkvkCfhCgggltdWkpsedpweqHakwyPgCkyL
ChainResidueDetails
CTYR265-LEU330

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues8
DetailsMotif: {"description":"IAP-binding"}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues130
DetailsRepeat: {"description":"BIR 3"}
ChainResidueDetails

site_idSWS_FT_FI3
Number of Residues30
DetailsRegion: {"description":"Required for interaction with SEPTIN4 isoform ARTS","evidences":[{"source":"PubMed","id":"21695558","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI4
Number of Residues8
DetailsBinding site: {"evidences":[{"source":"PROSITE-ProRule","id":"PRU00029","evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

site_idSWS_FT_FI5
Number of Residues6
DetailsCross-link: {"description":"Glycyl lysine isopeptide (Lys-Gly) (interchain with G-Cter in ubiquitin)","evidences":[{"source":"PubMed","id":"12747801","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI6
Number of Residues21
DetailsRegion: {"description":"Required for interaction with DIABLO","evidences":[{"source":"PubMed","id":"21695558","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

238895

PDB entries from 2025-07-16

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