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1CG3

STRUCTURE OF THE MUTANT (R143L) OF ADENYLOSUCCINATE SYNTHETASE FROM E. COLI COMPLEXED WITH HADACIDIN, GDP, 6-PHOSPHORYL-IMP, AND MG2+

Functional Information from GO Data
ChainGOidnamespacecontents
A0000166molecular_functionnucleotide binding
A0000287molecular_functionmagnesium ion binding
A0004019molecular_functionadenylosuccinate synthase activity
A0005515molecular_functionprotein binding
A0005525molecular_functionGTP binding
A0005737cellular_componentcytoplasm
A0005829cellular_componentcytosol
A0006164biological_processpurine nucleotide biosynthetic process
A0006974biological_processDNA damage response
A0015949biological_processnucleobase-containing small molecule interconversion
A0016020cellular_componentmembrane
A0016874molecular_functionligase activity
A0044208biological_process'de novo' AMP biosynthetic process
A0046040biological_processIMP metabolic process
A0046086biological_processadenosine biosynthetic process
A0046872molecular_functionmetal ion binding
A0097216molecular_functionguanosine tetraphosphate binding
Functional Information from PDB Data
site_idAC1
Number of Residues5
DetailsBINDING SITE FOR RESIDUE MG A 435
ChainResidue
AASP13
AGLY40
AGDP432
AHDA437
AIMO440

site_idAC2
Number of Residues12
DetailsBINDING SITE FOR RESIDUE HDA A 437
ChainResidue
AALA299
ATHR300
ATHR301
AARG303
AARG305
AGDP432
AMG435
AIMO440
AASP13
AASN38
AGLY40
AGLY298

site_idAC3
Number of Residues29
DetailsBINDING SITE FOR RESIDUE IMO A 440
ChainResidue
ATRP11
AGLY12
AASP13
ALYS16
AASN38
AALA39
AGLY40
AHIS41
AGLY127
ATHR128
ATHR129
AILE133
AALA223
AGLN224
AVAL238
ATHR239
AVAL273
AGLY274
AARG303
AGDP432
AMG435
AHDA437
AHOH532
AHOH585
AHOH634
AHOH659
AHOH674
AHOH676
AHOH701

site_idAC4
Number of Residues23
DetailsBINDING SITE FOR RESIDUE GDP A 432
ChainResidue
AASP13
AGLU14
AGLY15
ALYS16
AGLY17
AGLY40
AHIS41
ATHR42
AALA299
AARG305
ALYS331
AASP333
ASER414
ATHR415
AGLY416
APRO417
AMG435
AHDA437
AIMO440
AHOH503
AHOH716
AHOH720
AHOH738

Functional Information from PROSITE/UniProt
site_idPS01266
Number of Residues8
DetailsADENYLOSUCCIN_SYN_1 Adenylosuccinate synthetase GTP-binding site. QWGDEGKG
ChainResidueDetails
AGLN10-GLY17

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues1
DetailsActive site: {"description":"Proton acceptor"}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues1
DetailsActive site: {"description":"Proton donor"}
ChainResidueDetails

site_idSWS_FT_FI3
Number of Residues13
DetailsBinding site: {"evidences":[{"source":"HAMAP-Rule","id":"MF_00011","evidenceCode":"ECO:0000255"},{"source":"PubMed","id":"10346917","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI4
Number of Residues6
DetailsBinding site: {"description":"in other chain"}
ChainResidueDetails

site_idSWS_FT_FI5
Number of Residues2
DetailsBinding site: {"evidences":[{"source":"HAMAP-Rule","id":"MF_00011","evidenceCode":"ECO:0000255"},{"source":"PubMed","id":"10346917","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"8961938","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"9000627","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI6
Number of Residues4
DetailsBinding site: {"description":"in other chain","evidences":[{"source":"HAMAP-Rule","id":"MF_00011","evidenceCode":"ECO:0000255"},{"source":"PubMed","id":"10346917","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"9000627","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI7
Number of Residues1
DetailsBinding site: {"evidences":[{"source":"HAMAP-Rule","id":"MF_00011","evidenceCode":"ECO:0000255"},{"source":"PubMed","id":"10346917","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"9000627","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI8
Number of Residues6
DetailsBinding site: {}
ChainResidueDetails

Catalytic Information from CSA
site_idCSA1
Number of Residues3
DetailsAnnotated By Reference To The Literature 1gim
ChainResidueDetails
AASP13
AGLN224
AHIS41

site_idMCSA1
Number of Residues5
DetailsM-CSA 65
ChainResidueDetails
AASP13electrostatic stabiliser, hydrogen bond acceptor, hydrogen bond donor, metal ligand, proton acceptor, proton donor
ALYS16electrostatic stabiliser, hydrogen bond donor
AGLY40metal ligand
AHIS41electrostatic stabiliser, hydrogen bond acceptor, hydrogen bond donor, proton acceptor, proton donor
AGLN224electrostatic stabiliser, hydrogen bond donor

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PDB entries from 2025-08-06

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