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1K70

The Structure of Escherichia coli Cytosine Deaminase bound to 4-Hydroxy-3,4-Dihydro-1H-Pyrimidin-2-one

Functional Information from GO Data
ChainGOidnamespacecontents
A0004131molecular_functioncytosine deaminase activity
A0005829cellular_componentcytosol
A0006209biological_processcytosine catabolic process
A0008198molecular_functionferrous iron binding
A0008270molecular_functionzinc ion binding
A0016787molecular_functionhydrolase activity
A0016810molecular_functionhydrolase activity, acting on carbon-nitrogen (but not peptide) bonds
A0019858biological_processcytosine metabolic process
A0035888molecular_functionisoguanine deaminase activity
A0042802molecular_functionidentical protein binding
A0046872molecular_functionmetal ion binding
Functional Information from PDB Data
site_idAC1
Number of Residues5
DetailsBINDING SITE FOR RESIDUE FE A 502
ChainResidue
AHIS61
AHIS63
AHIS214
AASP313
AHPY501

site_idAC2
Number of Residues12
DetailsBINDING SITE FOR RESIDUE HPY A 501
ChainResidue
AHIS214
AGLU217
AHIS246
AASP313
AASP314
ATRP319
AFE502
AHOH665
AHIS63
ALEU81
APHE154
AGLN156

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues1
DetailsACT_SITE: Proton donor => ECO:0000305|PubMed:11812140, ECO:0000305|PubMed:21545144, ECO:0000305|PubMed:21604715
ChainResidueDetails
AILE218

site_idSWS_FT_FI2
Number of Residues4
DetailsBINDING: BINDING => ECO:0000269|PubMed:21545144, ECO:0000269|PubMed:21604715, ECO:0000269|Ref.14
ChainResidueDetails
AILE62
ALEU64
ACYS215
AASP314

site_idSWS_FT_FI3
Number of Residues1
DetailsBINDING: BINDING => ECO:0000269|PubMed:11812140, ECO:0000269|PubMed:15381761, ECO:0000269|PubMed:21545144, ECO:0000269|PubMed:21604715
ChainResidueDetails
AGLU157

site_idSWS_FT_FI4
Number of Residues1
DetailsBINDING: BINDING => ECO:0000269|PubMed:11812140, ECO:0000269|PubMed:15381761, ECO:0000269|PubMed:21545144
ChainResidueDetails
ATYR320

site_idSWS_FT_FI5
Number of Residues1
DetailsSITE: Activates the nucleophilic water => ECO:0000305|PubMed:21545144, ECO:0000305|PubMed:21604715
ChainResidueDetails
ATHR247

Catalytic Information from CSA
site_idMCSA1
Number of Residues6
DetailsM-CSA 710
ChainResidueDetails
AILE62metal ligand
ALEU64metal ligand
AGLU157electrostatic stabiliser
ACYS215metal ligand
AILE218proton acceptor, proton donor
AASP314metal ligand

225158

PDB entries from 2024-09-18

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