ID CDD_SHEPA Reviewed; 296 AA.
AC A8H5H1;
DT 20-MAY-2008, integrated into UniProtKB/Swiss-Prot.
DT 13-NOV-2007, sequence version 1.
DT 27-MAR-2024, entry version 81.
DE RecName: Full=Cytidine deaminase {ECO:0000255|HAMAP-Rule:MF_01558};
DE EC=3.5.4.5 {ECO:0000255|HAMAP-Rule:MF_01558};
DE AltName: Full=Cytidine aminohydrolase {ECO:0000255|HAMAP-Rule:MF_01558};
DE Short=CDA {ECO:0000255|HAMAP-Rule:MF_01558};
GN Name=cdd {ECO:0000255|HAMAP-Rule:MF_01558}; OrderedLocusNames=Spea_2488;
OS Shewanella pealeana (strain ATCC 700345 / ANG-SQ1).
OC Bacteria; Pseudomonadota; Gammaproteobacteria; Alteromonadales;
OC Shewanellaceae; Shewanella.
OX NCBI_TaxID=398579;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 700345 / ANG-SQ1;
RG US DOE Joint Genome Institute;
RA Copeland A., Lucas S., Lapidus A., Barry K., Glavina del Rio T., Dalin E.,
RA Tice H., Pitluck S., Chertkov O., Brettin T., Bruce D., Detter J.C.,
RA Han C., Schmutz J., Larimer F., Land M., Hauser L., Kyrpides N., Kim E.,
RA Zhao J.-S.Z., Manno D., Hawari J., Richardson P.;
RT "Complete sequence of Shewanella pealeana ATCC 700345.";
RL Submitted (OCT-2007) to the EMBL/GenBank/DDBJ databases.
CC -!- FUNCTION: This enzyme scavenges exogenous and endogenous cytidine and
CC 2'-deoxycytidine for UMP synthesis. {ECO:0000255|HAMAP-Rule:MF_01558}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=cytidine + H(+) + H2O = NH4(+) + uridine;
CC Xref=Rhea:RHEA:16069, ChEBI:CHEBI:15377, ChEBI:CHEBI:15378,
CC ChEBI:CHEBI:16704, ChEBI:CHEBI:17562, ChEBI:CHEBI:28938; EC=3.5.4.5;
CC Evidence={ECO:0000255|HAMAP-Rule:MF_01558};
CC -!- CATALYTIC ACTIVITY:
CC Reaction=2'-deoxycytidine + H(+) + H2O = 2'-deoxyuridine + NH4(+);
CC Xref=Rhea:RHEA:13433, ChEBI:CHEBI:15377, ChEBI:CHEBI:15378,
CC ChEBI:CHEBI:15698, ChEBI:CHEBI:16450, ChEBI:CHEBI:28938; EC=3.5.4.5;
CC Evidence={ECO:0000255|HAMAP-Rule:MF_01558};
CC -!- COFACTOR:
CC Name=Zn(2+); Xref=ChEBI:CHEBI:29105;
CC Evidence={ECO:0000255|HAMAP-Rule:MF_01558};
CC Note=Binds 1 zinc ion. {ECO:0000255|HAMAP-Rule:MF_01558};
CC -!- SUBUNIT: Homodimer. {ECO:0000255|HAMAP-Rule:MF_01558}.
CC -!- SIMILARITY: Belongs to the cytidine and deoxycytidylate deaminase
CC family. {ECO:0000255|HAMAP-Rule:MF_01558}.
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DR EMBL; CP000851; ABV87808.1; -; Genomic_DNA.
DR RefSeq; WP_012155717.1; NC_009901.1.
DR AlphaFoldDB; A8H5H1; -.
DR SMR; A8H5H1; -.
DR STRING; 398579.Spea_2488; -.
DR KEGG; spl:Spea_2488; -.
DR eggNOG; COG0295; Bacteria.
DR HOGENOM; CLU_052424_0_0_6; -.
DR OrthoDB; 9795347at2; -.
DR Proteomes; UP000002608; Chromosome.
DR GO; GO:0005737; C:cytoplasm; IEA:UniProt.
DR GO; GO:0004126; F:cytidine deaminase activity; IEA:UniProtKB-UniRule.
DR GO; GO:0047844; F:deoxycytidine deaminase activity; IEA:RHEA.
DR GO; GO:0042802; F:identical protein binding; IEA:UniProt.
DR GO; GO:0008270; F:zinc ion binding; IEA:UniProtKB-UniRule.
DR CDD; cd01283; cytidine_deaminase; 1.
DR Gene3D; 3.40.140.10; Cytidine Deaminase, domain 2; 2.
DR HAMAP; MF_01558; Cyt_deam; 1.
DR InterPro; IPR016192; APOBEC/CMP_deaminase_Zn-bd.
DR InterPro; IPR002125; CMP_dCMP_dom.
DR InterPro; IPR013171; Cyd/dCyd_deaminase_Zn-bd.
DR InterPro; IPR016193; Cytidine_deaminase-like.
DR InterPro; IPR020797; Cytidine_deaminase_bacteria.
DR PANTHER; PTHR11644; CYTIDINE DEAMINASE; 1.
DR PANTHER; PTHR11644:SF2; CYTIDINE DEAMINASE; 1.
DR Pfam; PF00383; dCMP_cyt_deam_1; 1.
DR Pfam; PF08211; dCMP_cyt_deam_2; 1.
DR PIRSF; PIRSF006334; Cdd_plus_pseudo; 1.
DR SUPFAM; SSF53927; Cytidine deaminase-like; 2.
DR PROSITE; PS00903; CYT_DCMP_DEAMINASES_1; 1.
DR PROSITE; PS51747; CYT_DCMP_DEAMINASES_2; 2.
PE 3: Inferred from homology;
KW Hydrolase; Metal-binding; Reference proteome; Zinc.
FT CHAIN 1..296
FT /note="Cytidine deaminase"
FT /id="PRO_1000087799"
FT DOMAIN 47..167
FT /note="CMP/dCMP-type deaminase 1"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU01083"
FT DOMAIN 186..296
FT /note="CMP/dCMP-type deaminase 2"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU01083"
FT ACT_SITE 103
FT /note="Proton donor"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01558"
FT BINDING 88..90
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01558"
FT BINDING 101
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /ligand_note="catalytic"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01558"
FT BINDING 128
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /ligand_note="catalytic"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01558"
FT BINDING 131
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /ligand_note="catalytic"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01558"
SQ SEQUENCE 296 AA; 31840 MW; 182E1404EEA9C6C1 CRC64;
MQDRFLKSIA KLPEPLATAI VPLLDKDFAG HIDAQQLAEL QAASKMELNE LLLALLPIAA
ALARPPISQF HVGAIAKGKS GDIYMGANIE LPGEALFHSV HAEQSAISHA WLSGESIIED
IIVNASPCGH CRQFINELVD GGKVNIHLPD QATAPLSHYL PYAFGPSDLD VTEPLLSKQQ
QTLTLDSNDP MIIEGLDHAG LSYAPYTKAY ASVVLETKDG ATYCGRYAEN AAFNPSMQPM
QMALSTMARH NRDFSEINRA VLIESSKGVI SLVGAAMDAL HSVAAVELEH IVVEPE
//
