Structure of PDB 2w55 Chain B Binding Site BS02

Receptor Information
>2w55 Chain B (length=760) Species: 1061 (Rhodobacter capsulatus) [Search protein sequence] [Download receptor structure] [Download structure with residue number starting from 1] [View receptor structure]
SVGKPLPHDSARAHVTGQARYLDDLPCPANTLHLAFGLSTEASAAITGLD
LEPVRESPGVIAVFTAADLPHDNDASPAPSPEPVLATGEVHFVGQPIFLV
AATSHRAARIAARKARITYAPRPAILTLDQALAADSRFEGGPVIWARGDV
ETALAGAAHLAEGCFEIGGQEHFYLEGQAALALPAEGGVVIHCSSQHPSE
IQHKVAHALGLAFHDVRVEMRRMGGGFGGKQSQGNHLAIACAVAARATGR
PCKMRYDRDDDMVITGKRHDFRIRYRIGADASGKLLGADFVHLARCGWSA
DLSLPVCDRAMLHADGSYFVPALRIESHRLRTNTQSNTAFRGFGGPQGAL
GMERAIEHLARGMGRDPAELRALNFYDPPEKKTQTTHYGQEVADCVLGEL
VTRLQKSANFTTRRAEIAAWNSTNRTLARGIALSPVKFGISFTLTHLNQA
GALVQIYTDGSVALNHGGTEMGQGLHAKMVQVAAAVLGIDPVQVRITATD
TSKVPNTSATAASSGADMNGMAVKDACETLRGRLAGFVAAREGCAARDVI
FDAGQVQASGKSWRFAEIVAAAYMARISLSATGFYATPKLSWDRLRGQGR
PFLYFAYGAAITEVVIDRLTGENRILRTDILHDAGASLNPALDIGQIEGA
YVQGAGWLTTEELVWDHCGRLMTHAPSTYKIPAFSDRPRIFNVALWDQPN
REETIFRSKAVGEPPFLLGISAFLALHDACAACGPHWPDLQAPATPEAVL
AAVRRAEGRA
Ligand information
Ligand IDHPA
InChIInChI=1S/C5H4N4O/c10-5-3-4(7-1-6-3)8-2-9-5/h1-2H,(H2,6,7,8,9,10)
InChIKeyFDGQSTZJBFJUBT-UHFFFAOYSA-N
SMILES
SoftwareSMILES
ACDLabs 10.04O=C1c2c(N=CN1)ncn2
OpenEye OEToolkits 1.5.0c1[nH]c2c(n1)N=CNC2=O
CACTVS 3.341O=C1NC=Nc2nc[nH]c12
FormulaC5 H4 N4 O
NameHYPOXANTHINE
ChEMBLCHEMBL1427
DrugBankDB04076
ZINCZINC000018153302
PDB chain2w55 Chain B Residue 1780 [Download ligand structure] [Download structure with residue number starting from 1] [View ligand structure]
Receptor-Ligand Complex Structure
Global viewLocal viewStructure summary

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PDB2w55 Mechanism of Substrate and Inhibitor Binding of Rhodobacter Capsulatus Xanthine Dehydrogenase.
Resolution3.4 Å
Binding residue
(original residue number in PDB)		Q232 R310 F344 F459 T460 A529
Binding residue
(residue number reindexed from 1)		Q231 R309 F343 F442 T443 A512
Annotation score4
Enzymatic activity
Catalytic site (original residue number in PDB) Q197 Q232 R310 H314 R342 G729 E730
Catalytic site (residue number reindexed from 1) Q196 Q231 R309 H313 R341 G712 E713
Enzyme Commision number 1.1.1.204: Transferred entry: 1.17.1.4.
Gene Ontology
Molecular Function
GO:0005506 iron ion binding
GO:0016491 oxidoreductase activity
GO:0030151 molybdenum ion binding
GO:0046872 metal ion binding

View graph for
Molecular Function
External links
PDB RCSB:2w55, PDBe:2w55, PDBj:2w55
PDBsum2w55
PubMed19109249
UniProtO54051

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