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1QK3

TOXOPLASMA GONDII HYPOXANTHINE-GUANINE PHOSPHORIBOSYLTRANSFERASE GMP COMPLEX

Functional Information from GO Data
ChainGOidnamespacecontents
A0000166molecular_functionnucleotide binding
A0000287molecular_functionmagnesium ion binding
A0000310molecular_functionxanthine phosphoribosyltransferase activity
A0004422molecular_functionhypoxanthine phosphoribosyltransferase activity
A0005737cellular_componentcytoplasm
A0005829cellular_componentcytosol
A0006166biological_processpurine ribonucleoside salvage
A0006178biological_processguanine salvage
A0016740molecular_functiontransferase activity
A0016757molecular_functionglycosyltransferase activity
A0032263biological_processGMP salvage
A0032264biological_processIMP salvage
A0032265biological_processXMP salvage
A0046100biological_processhypoxanthine metabolic process
A0046872molecular_functionmetal ion binding
A0052657molecular_functionguanine phosphoribosyltransferase activity
B0000166molecular_functionnucleotide binding
B0000287molecular_functionmagnesium ion binding
B0000310molecular_functionxanthine phosphoribosyltransferase activity
B0004422molecular_functionhypoxanthine phosphoribosyltransferase activity
B0005737cellular_componentcytoplasm
B0005829cellular_componentcytosol
B0006166biological_processpurine ribonucleoside salvage
B0006178biological_processguanine salvage
B0016740molecular_functiontransferase activity
B0016757molecular_functionglycosyltransferase activity
B0032263biological_processGMP salvage
B0032264biological_processIMP salvage
B0032265biological_processXMP salvage
B0046100biological_processhypoxanthine metabolic process
B0046872molecular_functionmetal ion binding
B0052657molecular_functionguanine phosphoribosyltransferase activity
C0000166molecular_functionnucleotide binding
C0000287molecular_functionmagnesium ion binding
C0000310molecular_functionxanthine phosphoribosyltransferase activity
C0004422molecular_functionhypoxanthine phosphoribosyltransferase activity
C0005737cellular_componentcytoplasm
C0005829cellular_componentcytosol
C0006166biological_processpurine ribonucleoside salvage
C0006178biological_processguanine salvage
C0016740molecular_functiontransferase activity
C0016757molecular_functionglycosyltransferase activity
C0032263biological_processGMP salvage
C0032264biological_processIMP salvage
C0032265biological_processXMP salvage
C0046100biological_processhypoxanthine metabolic process
C0046872molecular_functionmetal ion binding
C0052657molecular_functionguanine phosphoribosyltransferase activity
D0000166molecular_functionnucleotide binding
D0000287molecular_functionmagnesium ion binding
D0000310molecular_functionxanthine phosphoribosyltransferase activity
D0004422molecular_functionhypoxanthine phosphoribosyltransferase activity
D0005737cellular_componentcytoplasm
D0005829cellular_componentcytosol
D0006166biological_processpurine ribonucleoside salvage
D0006178biological_processguanine salvage
D0016740molecular_functiontransferase activity
D0016757molecular_functionglycosyltransferase activity
D0032263biological_processGMP salvage
D0032264biological_processIMP salvage
D0032265biological_processXMP salvage
D0046100biological_processhypoxanthine metabolic process
D0046872molecular_functionmetal ion binding
D0052657molecular_functionguanine phosphoribosyltransferase activity
Functional Information from PDB Data
site_idAC1
Number of Residues16
DetailsBINDING SITE FOR RESIDUE 5GP A 300
ChainResidue
AGLU146
ATYR205
AASP206
AHOH2179
AHOH2180
AHOH2181
AHOH2182
BGLY125
AILE148
AASP150
ATHR151
AGLY152
ATHR154
ALYS178
ATRP199
AILE200

site_idAC2
Number of Residues17
DetailsBINDING SITE FOR RESIDUE 5GP B 300
ChainResidue
AGLY125
BLYS79
BGLU146
BILE148
BASP150
BTHR151
BGLY152
BTHR154
BLYS178
BTRP199
BILE200
BASP206
BHOH2112
BHOH2139
BHOH2157
BHOH2158
BHOH2159

site_idAC3
Number of Residues19
DetailsBINDING SITE FOR RESIDUE 5GP C 300
ChainResidue
CGLU146
CASP147
CASP150
CTHR151
CGLY152
CTHR154
CLYS178
CVAL198
CTRP199
CILE200
CTYR205
CASP206
CHOH2146
CHOH2147
CHOH2148
CHOH2149
CHOH2150
CHOH2151
CHOH2152

site_idAC4
Number of Residues19
DetailsBINDING SITE FOR RESIDUE 5GP D 300
ChainResidue
DLYS79
DGLU146
DASP147
DASP150
DTHR151
DGLY152
DPHE153
DTHR154
DLYS178
DTRP199
DILE200
DASP206
DHOH2088
DHOH2145
DHOH2146
DHOH2147
DHOH2148
DHOH2149
DHOH2150

Functional Information from PROSITE/UniProt
site_idPS00103
Number of Residues13
DetailsPUR_PYR_PR_TRANSFER Purine/pyrimidine phosphoribosyl transferases signature. VLIVEDIVDTGfT
ChainResidueDetails
AVAL142-THR154

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues4
DetailsACT_SITE: Proton acceptor => ECO:0000269|PubMed:10545171, ECO:0000269|PubMed:11188695
ChainResidueDetails
AASP150
BASP150
CASP150
DASP150

site_idSWS_FT_FI2
Number of Residues16
DetailsBINDING:
ChainResidueDetails
ALYS79
CGLU146
CLYS178
CTRP199
DLYS79
DGLU146
DLYS178
DTRP199
AGLU146
ALYS178
ATRP199
BLYS79
BGLU146
BLYS178
BTRP199
CLYS79

site_idSWS_FT_FI3
Number of Residues4
DetailsBINDING: BINDING => ECO:0000269|PubMed:11188695
ChainResidueDetails
AASP206
BASP206
CASP206
DASP206

Catalytic Information from CSA
site_idCSA1
Number of Residues4
DetailsAnnotated By Reference To The Literature 1a95
ChainResidueDetails
AASP147
AASP150
AGLU146
ALYS178

site_idCSA2
Number of Residues4
DetailsAnnotated By Reference To The Literature 1a95
ChainResidueDetails
BASP147
BASP150
BGLU146
BLYS178

site_idCSA3
Number of Residues4
DetailsAnnotated By Reference To The Literature 1a95
ChainResidueDetails
CASP147
CASP150
CGLU146
CLYS178

site_idCSA4
Number of Residues4
DetailsAnnotated By Reference To The Literature 1a95
ChainResidueDetails
DASP147
DASP150
DGLU146
DLYS178

site_idCSA5
Number of Residues5
DetailsAnnotated By Reference To The Literature 1a95
ChainResidueDetails
AARG182
AASP147
AASP150
AGLU146
ALYS178

site_idCSA6
Number of Residues5
DetailsAnnotated By Reference To The Literature 1a95
ChainResidueDetails
BARG182
BASP147
BASP150
BGLU146
BLYS178

site_idCSA7
Number of Residues5
DetailsAnnotated By Reference To The Literature 1a95
ChainResidueDetails
CARG182
CASP147
CASP150
CGLU146
CLYS178

site_idCSA8
Number of Residues5
DetailsAnnotated By Reference To The Literature 1a95
ChainResidueDetails
DARG182
DASP147
DASP150
DGLU146
DLYS178

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PDB entries from 2025-07-02

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