Structure of PDB 3unc Chain B Binding Site BS02

Receptor Information
>3unc Chain B (length=1289) Species: 9913 (Bos taurus) [Search protein sequence] [Download receptor structure] [Download structure with residue number starting from 1] [View receptor structure]
ADELVFFVNGKKVVEKNADPETTLLAYLRRKLGLRGTKLGCGEGGCGACT
VMLSKYDRLQDKIIHFSANACLAPICTLHHVAVTTVEGIGSTKTRLHPVQ
ERIAKSHGSQCGFCTPGIVMSMYTLLRNQPEPTVEEIEDAFQGNLCRCTG
YRPILQGFRTFAPSLFNPEEFMPLDPTQEPIFPPELLRLKDVPPKQLRFE
GERVTWIQASTLKELLDLKAQHPEAKLVVGNTEIGIEMKFKNQLFPMIIC
PAWIPELNAVEHGPEGISFGAACALSSVEKTLLEAVAKLPTQKTEVFRGV
LEQLRWFAGKQVKSVASLGGNIITASPISDLNPVFMASGTKLTIVSRGTR
RTVPMDHTFFPSYRKTLLGPEEILLSIEIPYSREDEFFSAFKQASRREDD
IAKVTCGMRVLFQPGSMQVKELALCYGGMADRTISALKTTQKQLSKFWNE
KLLQDVCAGLAEELSLSPDAPGGMIEFRRTLTLSFFFKFYLTVLKKLGKL
DPTYTSATLLFQKDPPANIQLFQEVPNGQSKEDTVGRPLPHLAAAMQASG
EAVYCDDIPRYENELFLRLVTSTRAHAKIKSIDVSEAQKVPGFVCFLSAD
DIPGSNETGLFNDETVFAKDTVTCVGHIIGAVVADTPEHAERAAHVVKVT
YEDLPAIITIEDAIKNNSFYGSELKIEKGDLKKGFSEADNVVSGELYIGG
QDHFYLETHCTIAIPKGEEGEMELFVSTQNAMKTQSFVAKMLGVPVNRIL
VRVKRMGGGFGGKETRSTLVSVAVALAAYKTGHPVRCMLDRNEDMLITGG
RHPFLARYKVGFMKTGTIVALEVDHYSNAGNSRDLSHSIMERALFHMDNC
YKIPNIRGTGRLCKTNLSSNTAFRGFGGPQALFIAENWMSEVAVTCGLPA
EEVRWKNMYKEGDLTHFNQRLEGFSVPRCWDECLKSSQYYARKSEVDKFN
KENCWKKRGLCIIPTKFGISFTVPFLNQAGALIHVYTDGSVLVSHGGTEM
GQGLHTKMVQVASKALKIPISKIYISETSTNTVPNSSPTAASVSTDIYGQ
AVYEACQTILKRLEPFKKKNPDGSWEDWVMAAYQDRVSLSTTGFYRTPNL
GYSFETNSGNAFHYFTYGVACSEVEIDCLTGDHKNLRTDIVMDVGSSLNP
AIDIGQVEGAFVQGLGLFTLEELHYSPEGSLHTRGPSTYKIPAFGSIPTE
FRVSLLRDCPNKKAIYASKAVGEPPLFLGASVFFAIKDAIRAARAQHTNN
NTKELFRLDSPATPEKIRNACVDKFTTLCVTCKPWSLRV
Ligand information
Ligand IDFES
InChIInChI=1S/2Fe.2S
InChIKeyNIXDOXVAJZFRNF-UHFFFAOYSA-N
SMILES
SoftwareSMILES
ACDLabs 10.04[Fe]1S[Fe]S1
CACTVS 3.341
OpenEye OEToolkits 1.5.0		S1[Fe]S[Fe]1
FormulaFe2 S2
NameFE2/S2 (INORGANIC) CLUSTER
ChEMBL
DrugBank
ZINC
PDB chain3unc Chain B Residue 1334 [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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PDB3unc Protein conformational gating of enzymatic activity in xanthine oxidoreductase.
Resolution1.65 Å
Binding residue
(original residue number in PDB)		G42 C43 G44 G46 C48 G49 C51 C73
Binding residue
(residue number reindexed from 1)		G40 C41 G42 G44 C46 G47 C49 C71
Annotation score1
Enzymatic activity
Catalytic site (original residue number in PDB) Q767 E802 R880 H884 R912 G1260 E1261
Catalytic site (residue number reindexed from 1) Q729 E764 R842 H846 R874 G1222 E1223
Enzyme Commision number 1.17.1.4: xanthine dehydrogenase.
1.17.3.2: xanthine oxidase.
Gene Ontology
Molecular Function
GO:0004854 xanthine dehydrogenase activity
GO:0004855 xanthine oxidase activity
GO:0005506 iron ion binding
GO:0016491 oxidoreductase activity
GO:0030151 molybdenum ion binding
GO:0042803 protein homodimerization activity
GO:0043546 molybdopterin cofactor binding
GO:0046872 metal ion binding
GO:0050660 flavin adenine dinucleotide binding
GO:0051536 iron-sulfur cluster binding
GO:0051537 2 iron, 2 sulfur cluster binding
GO:0071949 FAD binding
Biological Process
GO:0009115 xanthine catabolic process
Cellular Component
GO:0002197 xanthine dehydrogenase complex
GO:0005576 extracellular region
GO:0005615 extracellular space
GO:0005737 cytoplasm
GO:0005777 peroxisome

View graph for
Molecular Function
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Biological Process
View graph for
Cellular Component
External links
PDB RCSB:3unc, PDBe:3unc, PDBj:3unc
PDBsum3unc
PubMed22145797
UniProtP80457|XDH_BOVIN Xanthine dehydrogenase/oxidase (Gene Name=XDH)

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