Structure of PDB 1grv Chain B Binding Site BS01

Receptor Information
>1grv Chain B (length=169) Species: 562 (Escherichia coli) [Search protein sequence] [Download receptor structure] [Download structure with residue number starting from 1] [View receptor structure]
MKHTVEVMIPEAEIKARIAELGRQITERYKDSGSDMVLVGLLRGSFMFMA
DLCREVQVSHEVDFMTASSRDLKILKDLDEDIRGKDVLIVEDIIDSGNTL
SKVREILSLREPKSLAICTLLDKPSRREVNVPVEFIGFSIPDEFVVGYGI
DYAQRYRHLPYIGKVILLD
Ligand information
Ligand IDMG
InChIInChI=1S/Mg/q+2
InChIKeyJLVVSXFLKOJNIY-UHFFFAOYSA-N
SMILES
SoftwareSMILES
ACDLabs 10.04
OpenEye OEToolkits 1.5.0		[Mg+2]
CACTVS 3.341[Mg++]
FormulaMg
NameMAGNESIUM ION
ChEMBL
DrugBankDB01378
ZINC
PDB chain1grv Chain A Residue 490 [Download ligand structure] [Download structure with residue number starting from 1] [View ligand structure]
Receptor-Ligand Complex Structure
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PDB1grv Crystal Structures of Free, Imp-, and Gmp- Bound Escherichia Coli Hypoxanthine Phosphoribosyltransferase
Resolution2.9 Å
Binding residue
(original residue number in PDB)		E103 D104
Binding residue
(residue number reindexed from 1)		E91 D92
Annotation score1
Enzymatic activity
Catalytic site (original residue number in PDB) E103 D104 D107 F156 R169
Catalytic site (residue number reindexed from 1) E91 D92 D95 F144 R157
Enzyme Commision number 2.4.2.8: hypoxanthine phosphoribosyltransferase.
Gene Ontology
Molecular Function
GO:0000166 nucleotide binding
GO:0000287 magnesium ion binding
GO:0004422 hypoxanthine phosphoribosyltransferase activity
GO:0016757 glycosyltransferase activity
GO:0042802 identical protein binding
GO:0046872 metal ion binding
GO:0052657 guanine phosphoribosyltransferase activity
GO:0097216 guanosine tetraphosphate binding
Biological Process
GO:0006166 purine ribonucleoside salvage
GO:0006178 guanine salvage
GO:0032263 GMP salvage
GO:0032264 IMP salvage
GO:0046100 hypoxanthine metabolic process
GO:0051289 protein homotetramerization
Cellular Component
GO:0005737 cytoplasm
GO:0005829 cytosol
GO:0032991 protein-containing complex

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Molecular Function
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Biological Process
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Cellular Component
External links
PDB RCSB:1grv, PDBe:1grv, PDBj:1grv
PDBsum1grv
PubMed12070315
UniProtP0A9M2|HPRT_ECOLI Hypoxanthine phosphoribosyltransferase (Gene Name=hpt)

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