Structure of PDB 5lok Chain B Binding Site BS02

Receptor Information
>5lok Chain B (length=252) Species: 666 (Vibrio cholerae) [Search protein sequence] [Download receptor structure] [Download structure with residue number starting from 1] [View receptor structure]
TKTVFHLGVTEADLNGATLAIIPGDPARVQKIAELMDNPVFLASHREYTV
YRAELDGQSVVVCSTGIGGPSTSIAVEELAQLGVRTFLRVGTTGAIQPHV
NVGDMIVTTGSVRLDGASLHFAPMEFPAVPDFDVATAMKAAAQESGATVH
MGVTASSDTFYPGQERYDTFTGRVVRRFQGSMKEWQDMGVLNFEMESATL
LTMCASSGLKAGCVAGVIINRTQKEIPDHATLKETEARSIKVVVEAARKM
LK
Ligand information
Ligand IDCYT
InChIInChI=1S/C4H5N3O/c5-3-1-2-6-4(8)7-3/h1-2H,(H3,5,6,7,8)
InChIKeyOPTASPLRGRRNAP-UHFFFAOYSA-N
SMILES
SoftwareSMILES
ACDLabs 10.04O=C1N=CC=C(N)N1
OpenEye OEToolkits 1.5.0C1=C(NC(=O)N=C1)N
CACTVS 3.341NC1=CC=NC(=O)N1
FormulaC4 H5 N3 O
Name6-AMINOPYRIMIDIN-2(1H)-ONE;
CYTOSINE
ChEMBLCHEMBL15913
DrugBank
ZINCZINC000000895210
PDB chain5lok Chain B Residue 305 [Download ligand structure] [Download structure with residue number starting from 1] [View ligand structure]
Receptor-Ligand Complex Structure
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PDB5lok X-ray structure of uridine phosphorylase from Vibrio cholerae in complex with cytidine and cytosine at 1.11 A resolution
Resolution1.109 Å
Binding residue
(original residue number in PDB)		T94 G95 F161 Q165 I220
Binding residue
(residue number reindexed from 1)		T93 G94 F160 Q164 I219
Annotation score1
Enzymatic activity
Catalytic site (original residue number in PDB) H7 G25 R29 R47 E79 R90 T93 R167 I219 I220 R222 L233
Catalytic site (residue number reindexed from 1) H6 G24 R28 R46 E78 R89 T92 R166 I218 I219 R221 L232
Enzyme Commision number 2.4.2.3: uridine phosphorylase.
Gene Ontology
Molecular Function
GO:0003824 catalytic activity
GO:0004850 uridine phosphorylase activity
GO:0016757 glycosyltransferase activity
GO:0016763 pentosyltransferase activity
GO:0046872 metal ion binding
GO:0047847 deoxyuridine phosphorylase activity
Biological Process
GO:0009116 nucleoside metabolic process
GO:0009164 nucleoside catabolic process
GO:0009166 nucleotide catabolic process
GO:0044206 UMP salvage
Cellular Component
GO:0005737 cytoplasm
GO:0005829 cytosol

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Molecular Function
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Biological Process
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Cellular Component
External links
PDB RCSB:5lok, PDBe:5lok, PDBj:5lok
PDBsum5lok
PubMed
UniProtQ9K4U1

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