Structure of PDB 1rb7 Chain B

Receptor sequence
>1rb7B (length=152) Species: 4932 (Saccharomyces cerevisiae) [Search protein sequence]
ASKWDQKGMDIAYEEAALGYKEGGVPIGGCLINNKDGSVLGRGHNMRFQK
GSATLHGEISTLENCGRLEGKVYKDTTLYTTLSPCDMCTGAIIMYGIPRC
VVGENVNFKSKGEKYLQTRGHEVVVVDDERCKKIMKQFIDERPQDWFEDI
GE
3D structure
PDB1rb7 Microseed matrix screening to improve crystals of yeast cytosine deaminase.
ChainB
Resolution2.1 Å
3D
structure
Catalytic site residues are labeled in the structure
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Enzymatic activity
Catalytic site (original residue number in PDB) H62 E64 S89 C91 C94
Catalytic site (residue number reindexed from 1) H56 E58 S83 C85 C88
Enzyme Commision number 3.5.4.1: cytosine deaminase.
Interaction with ligand
Site
#		 Ligand Ligand
chain		 Binding residues on receptor
(original residue number in PDB)		 Binding residues on receptor
(residue number reindexed from 1)		 Binding affinity
BS01 ZN B H62 C91 C94 H56 C85 C88
Gene Ontology
Molecular Function
GO:0003824 catalytic activity
GO:0004131 cytosine deaminase activity
GO:0008270 zinc ion binding
GO:0008835 diaminohydroxyphosphoribosylaminopyrimidine deaminase activity
GO:0016787 hydrolase activity
GO:0016814 hydrolase activity, acting on carbon-nitrogen (but not peptide) bonds, in cyclic amidines
GO:0019239 deaminase activity
GO:0046872 metal ion binding
Biological Process
GO:0008655 pyrimidine-containing compound salvage
GO:0019858 cytosine metabolic process
GO:0034654 nucleobase-containing compound biosynthetic process
GO:0044206 UMP salvage
GO:0046087 cytidine metabolic process
Cellular Component
GO:0005634 nucleus
GO:0005737 cytoplasm

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Cellular Component
External links
PDB RCSB:1rb7, PDBe:1rb7, PDBj:1rb7
PDBsum1rb7
PubMed14993707
UniProtQ12178|FCY1_YEAST Cytosine deaminase (Gene Name=FCY1)

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