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1KH2

Crystal Structure of Thermus thermophilus HB8 Argininosuccinate Synthetase in complex with ATP

Functional Information from GO Data
ChainGOidnamespacecontents
A0000050biological_processurea cycle
A0000053biological_processargininosuccinate metabolic process
A0000166molecular_functionnucleotide binding
A0004055molecular_functionargininosuccinate synthase activity
A0005524molecular_functionATP binding
A0005737cellular_componentcytoplasm
A0006526biological_processL-arginine biosynthetic process
A0008652biological_processamino acid biosynthetic process
A0016874molecular_functionligase activity
B0000050biological_processurea cycle
B0000053biological_processargininosuccinate metabolic process
B0000166molecular_functionnucleotide binding
B0004055molecular_functionargininosuccinate synthase activity
B0005524molecular_functionATP binding
B0005737cellular_componentcytoplasm
B0006526biological_processL-arginine biosynthetic process
B0008652biological_processamino acid biosynthetic process
B0016874molecular_functionligase activity
C0000050biological_processurea cycle
C0000053biological_processargininosuccinate metabolic process
C0000166molecular_functionnucleotide binding
C0004055molecular_functionargininosuccinate synthase activity
C0005524molecular_functionATP binding
C0005737cellular_componentcytoplasm
C0006526biological_processL-arginine biosynthetic process
C0008652biological_processamino acid biosynthetic process
C0016874molecular_functionligase activity
D0000050biological_processurea cycle
D0000053biological_processargininosuccinate metabolic process
D0000166molecular_functionnucleotide binding
D0004055molecular_functionargininosuccinate synthase activity
D0005524molecular_functionATP binding
D0005737cellular_componentcytoplasm
D0006526biological_processL-arginine biosynthetic process
D0008652biological_processamino acid biosynthetic process
D0016874molecular_functionligase activity
Functional Information from PDB Data
site_idAC1
Number of Residues14
DetailsBINDING SITE FOR RESIDUE ATP A 510
ChainResidue
AALA6
AILE95
AHIS113
AGLY114
AALA115
APHE125
ASER8
AGLY10
ALEU11
AASP12
ATHR13
APHE31
AALA33
AGLN37

site_idAC2
Number of Residues14
DetailsBINDING SITE FOR RESIDUE ATP B 1510
ChainResidue
BALA6
BTYR7
BSER8
BGLY10
BASP12
BTHR13
BPHE31
BTHR32
BALA33
BGLN37
BHIS113
BGLY114
BPHE125
BHOH1380

site_idAC3
Number of Residues14
DetailsBINDING SITE FOR RESIDUE ATP C 2510
ChainResidue
CALA6
CTYR7
CSER8
CGLY10
CLEU11
CASP12
CTHR13
CPHE31
CTHR32
CALA33
CGLN37
CHIS113
CGLY114
CPHE125

site_idAC4
Number of Residues13
DetailsBINDING SITE FOR RESIDUE ATP D 3510
ChainResidue
DALA6
DTYR7
DSER8
DGLY10
DLEU11
DASP12
DTHR13
DPHE31
DALA33
DARG92
DHIS113
DGLY114
DPHE125

Functional Information from PROSITE/UniProt
site_idPS00564
Number of Residues9
DetailsARGININOSUCCIN_SYN_1 Argininosuccinate synthase signature 1. AYSGGLDTS
ChainResidueDetails
AALA6-SER14

site_idPS00565
Number of Residues12
DetailsARGININOSUCCIN_SYN_2 Argininosuccinate synthase signature 2. GaTgKGNDqvRF
ChainResidueDetails
AGLY114-PHE125

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues40
DetailsBinding site: {"evidences":[{"source":"HAMAP-Rule","id":"MF_00005","evidenceCode":"ECO:0000255"},{"source":"PubMed","id":"11844799","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"12684518","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues40
DetailsBinding site: {}
ChainResidueDetails

Catalytic Information from CSA
site_idCSA1
Number of Residues2
DetailsAnnotated By Reference To The Literature 1kp2
ChainResidueDetails
AASP121
AARG92

site_idCSA2
Number of Residues2
DetailsAnnotated By Reference To The Literature 1kp2
ChainResidueDetails
BASP121
BARG92

site_idCSA3
Number of Residues2
DetailsAnnotated By Reference To The Literature 1kp2
ChainResidueDetails
CASP121
CARG92

site_idCSA4
Number of Residues2
DetailsAnnotated By Reference To The Literature 1kp2
ChainResidueDetails
DASP121
DARG92

site_idMCSA1
Number of Residues4
DetailsM-CSA 316
ChainResidueDetails
AASP12steric role
AARG92electrostatic stabiliser, hydrogen bond donor
AASP121proton acceptor, proton donor
ASER173hydrogen bond donor, steric role

site_idMCSA2
Number of Residues4
DetailsM-CSA 316
ChainResidueDetails
BASP12steric role
BARG92electrostatic stabiliser, hydrogen bond donor
BASP121proton acceptor, proton donor
BSER173hydrogen bond donor, steric role

site_idMCSA3
Number of Residues4
DetailsM-CSA 316
ChainResidueDetails
CASP12steric role
CARG92electrostatic stabiliser, hydrogen bond donor
CASP121proton acceptor, proton donor
CSER173hydrogen bond donor, steric role

site_idMCSA4
Number of Residues4
DetailsM-CSA 316
ChainResidueDetails
DASP12steric role
DARG92electrostatic stabiliser, hydrogen bond donor
DASP121proton acceptor, proton donor
DSER173hydrogen bond donor, steric role

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PDB entries from 2025-11-12

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