ID   CDD_ECOUT               Reviewed;         294 AA.
AC   Q1R9T0;
DT   05-FEB-2008, integrated into UniProtKB/Swiss-Prot.
DT   16-MAY-2006, sequence version 1.
DT   16-JUN-2009, entry version 23.
DE   RecName: Full=Cytidine deaminase;
DE            EC=3.5.4.5;
DE   AltName: Full=Cytidine aminohydrolase;
DE            Short=CDA;
GN   Name=cdd; OrderedLocusNames=UTI89_C2416;
OS   Escherichia coli (strain UTI89 / UPEC).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacteriales;
OC   Enterobacteriaceae; Escherichia.
OX   NCBI_TaxID=364106;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RX   PubMed=16585510; DOI=10.1073/pnas.0600938103;
RA   Chen S.L., Hung C.-S., Xu J., Reigstad C.S., Magrini V., Sabo A.,
RA   Blasiar D., Bieri T., Meyer R.R., Ozersky P., Armstrong J.R.,
RA   Fulton R.S., Latreille J.P., Spieth J., Hooton T.M., Mardis E.R.,
RA   Hultgren S.J., Gordon J.I.;
RT   "Identification of genes subject to positive selection in
RT   uropathogenic strains of Escherichia coli: a comparative genomics
RT   approach.";
RL   Proc. Natl. Acad. Sci. U.S.A. 103:5977-5982(2006).
CC   -!- FUNCTION: This enzyme scavenge exogenous and endogenous cytidine
CC       and 2'-deoxycytidine for UMP synthesis (By similarity).
CC   -!- CATALYTIC ACTIVITY: Cytidine + H(2)O = uridine + NH(3).
CC   -!- COFACTOR: Binds 1 zinc ion (By similarity).
CC   -!- SUBUNIT: Homodimer (By similarity).
CC   -!- SIMILARITY: Belongs to the cytidine and deoxycytidylate deaminase
CC       family.
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DR   EMBL; CP000243; ABE07884.1; -; Genomic_DNA.
DR   RefSeq; YP_541415.1; -.
DR   SMR; Q1R9T0; 1-294.
DR   GeneID; 3990463; -.
DR   GenomeReviews; CP000243_GR; UTI89_C2416.
DR   KEGG; eci:UTI89_C2416; -.
DR   HOGENOM; Q1R9T0; -.
DR   OMA; Q1R9T0; FSPCGHC.
DR   BioCyc; ECOL364106:UTI89_C2416-MON; -.
DR   GO; GO:0004126; F:cytidine deaminase activity; IEA:HAMAP.
DR   GO; GO:0008270; F:zinc ion binding; IEA:UniProtKB-KW.
DR   GO; GO:0046087; P:cytidine metabolic process; IEA:InterPro.
DR   HAMAP; MF_01558; -; 1.
DR   InterPro; IPR016192; APOBEC/CMP_deaminase_Zn-bd.
DR   InterPro; IPR002125; CMP_dCMP_Zn_bd.
DR   InterPro; IPR006263; Cyt_deam_dimer.
DR   InterPro; IPR013171; dC_C_deam_Zn_bd.
DR   Pfam; PF00383; dCMP_cyt_deam_1; 1.
DR   Pfam; PF08211; dCMP_cyt_deam_2; 1.
DR   TIGRFAMs; TIGR01355; cyt_deam_dimer; 1.
DR   PROSITE; PS00903; CYT_DCMP_DEAMINASES; 1.
PE   3: Inferred from homology;
KW   Complete proteome; Hydrolase; Metal-binding; Zinc.
FT   CHAIN         1    294       Cytidine deaminase.
FT                                /FTId=PRO_1000068952.
FT   REGION       89     91       Substrate binding (By similarity).
FT   ACT_SITE    104    104       Proton donor (By similarity).
FT   METAL       102    102       Zinc; catalytic (By similarity).
FT   METAL       129    129       Zinc; catalytic (By similarity).
FT   METAL       132    132       Zinc; catalytic (By similarity).
SQ   SEQUENCE   294 AA;  31567 MW;  69B5CD68AB145D6C CRC64;
     MHPRFQTAFA QLADNLQSAL EPILADKYFP ALLTGEQVSS LKSATGLDED ALAFALLPLA
     AACARTPLSN FNVGAIARGV SGTWYFGANM EFIGATMQQT VHAEQSAISH AWLSGEKALA
     AITVNYTPCG HCRQFMNELN SGLDLRIHLP GREAHALRDY LPDAFGPKDL EIKTLLMDEQ
     DHGYALTGDA LSQAAIAAAN RSHMPYSKSP SGVALECKDG RIFSGSYAEN AAFNPTLPPL
     QGALILLNLK GYDYPDIQRA VLAEKADAPL IQWDATSATL KALGCHNIDR VLLA
//