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1K97

Crystal Structure of E. coli Argininosuccinate Synthetase in complex with Aspartate and Citrulline

Functional Information from GO Data
ChainGOidnamespacecontents
A0000050biological_processurea cycle
A0000053biological_processargininosuccinate metabolic process
A0000166molecular_functionnucleotide binding
A0004055molecular_functionargininosuccinate synthase activity
A0005515molecular_functionprotein binding
A0005524molecular_functionATP binding
A0005737cellular_componentcytoplasm
A0005829cellular_componentcytosol
A0006526biological_processL-arginine biosynthetic process
A0008652biological_processamino acid biosynthetic process
A0016874molecular_functionligase activity
A0042802molecular_functionidentical protein binding
A0042803molecular_functionprotein homodimerization activity
Functional Information from PDB Data
site_idAC1
Number of Residues10
DetailsBINDING SITE FOR RESIDUE ASP A 501
ChainResidue
ASER129
AHOH717
ATHR130
AGLY133
AASN134
AASP135
AGLU202
ACIR502
AHOH561
AHOH573

site_idAC2
Number of Residues16
DetailsBINDING SITE FOR RESIDUE CIR A 502
ChainResidue
ATYR98
ATHR102
APRO103
AASN134
AARG138
ASER191
ATHR192
AASP193
ATHR200
AGLU202
AGLU279
ATYR291
ATYR331
AASP501
AHOH573
AHOH646

Functional Information from PROSITE/UniProt
site_idPS00564
Number of Residues9
DetailsARGININOSUCCIN_SYN_1 Argininosuccinate synthase signature 1. AFSGGLDTS
ChainResidueDetails
AALA16-SER24

site_idPS00565
Number of Residues12
DetailsARGININOSUCCIN_SYN_2 Argininosuccinate synthase signature 2. GsTyKGNDieRF
ChainResidueDetails
AGLY128-PHE139

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues11
DetailsBinding site: {"evidences":[{"source":"PubMed","id":"11809762","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues7
DetailsBinding site: {"evidences":[{"source":"PubMed","id":"11738042","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"11809762","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI3
Number of Residues2
DetailsBinding site: {"evidences":[{"source":"PubMed","id":"11738042","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

Catalytic Information from CSA
site_idCSA1
Number of Residues2
DetailsAnnotated By Reference To The Literature 1kp2
ChainResidueDetails
AASP135
AARG106

246704

PDB entries from 2025-12-24

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