ID   DCD_ORITI               Reviewed;         188 AA.
AC   B3CUK6;
DT   24-MAR-2009, integrated into UniProtKB/Swiss-Prot.
DT   22-JUL-2008, sequence version 1.
DT   03-AUG-2022, entry version 68.
DE   RecName: Full=dCTP deaminase {ECO:0000255|HAMAP-Rule:MF_00146};
DE            EC=3.5.4.13 {ECO:0000255|HAMAP-Rule:MF_00146};
DE   AltName: Full=Deoxycytidine triphosphate deaminase {ECO:0000255|HAMAP-Rule:MF_00146};
GN   Name=dcd {ECO:0000255|HAMAP-Rule:MF_00146}; OrderedLocusNames=OTT_1595;
OS   Orientia tsutsugamushi (strain Ikeda) (Rickettsia tsutsugamushi).
OC   Bacteria; Proteobacteria; Alphaproteobacteria; Rickettsiales;
OC   Rickettsiaceae; Rickettsieae; Orientia.
OX   NCBI_TaxID=334380;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=Ikeda;
RX   PubMed=18508905; DOI=10.1093/dnares/dsn011;
RA   Nakayama K., Yamashita A., Kurokawa K., Morimoto T., Ogawa M., Fukuhara M.,
RA   Urakami H., Ohnishi M., Uchiyama I., Ogura Y., Ooka T., Oshima K.,
RA   Tamura A., Hattori M., Hayashi T.;
RT   "The whole-genome sequencing of the obligate intracellular bacterium
RT   Orientia tsutsugamushi revealed massive gene amplification during reductive
RT   genome evolution.";
RL   DNA Res. 15:185-199(2008).
CC   -!- FUNCTION: Catalyzes the deamination of dCTP to dUTP.
CC       {ECO:0000255|HAMAP-Rule:MF_00146}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=dCTP + H(+) + H2O = dUTP + NH4(+); Xref=Rhea:RHEA:22680,
CC         ChEBI:CHEBI:15377, ChEBI:CHEBI:15378, ChEBI:CHEBI:28938,
CC         ChEBI:CHEBI:61481, ChEBI:CHEBI:61555; EC=3.5.4.13;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_00146};
CC   -!- PATHWAY: Pyrimidine metabolism; dUMP biosynthesis; dUMP from dCTP (dUTP
CC       route): step 1/2. {ECO:0000255|HAMAP-Rule:MF_00146}.
CC   -!- SUBUNIT: Homotrimer. {ECO:0000255|HAMAP-Rule:MF_00146}.
CC   -!- SIMILARITY: Belongs to the dCTP deaminase family. {ECO:0000255|HAMAP-
CC       Rule:MF_00146}.
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DR   EMBL; AP008981; BAG41053.1; -; Genomic_DNA.
DR   RefSeq; WP_012462053.1; NC_010793.1.
DR   AlphaFoldDB; B3CUK6; -.
DR   SMR; B3CUK6; -.
DR   EnsemblBacteria; BAG41053; BAG41053; OTT_1595.
DR   GeneID; 66653503; -.
DR   KEGG; ott:OTT_1595; -.
DR   HOGENOM; CLU_087476_4_0_5; -.
DR   OMA; FENHRYP; -.
DR   OrthoDB; 1598407at2; -.
DR   UniPathway; UPA00610; UER00665.
DR   Proteomes; UP000001033; Chromosome.
DR   GO; GO:0008829; F:dCTP deaminase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0000166; F:nucleotide binding; IEA:UniProtKB-KW.
DR   GO; GO:0006226; P:dUMP biosynthetic process; IEA:UniProtKB-UniPathway.
DR   GO; GO:0006229; P:dUTP biosynthetic process; IEA:UniProtKB-UniRule.
DR   CDD; cd07557; trimeric_dUTPase; 1.
DR   Gene3D; 2.70.40.10; -; 1.
DR   HAMAP; MF_00146; dCTP_deaminase; 1.
DR   InterPro; IPR011962; dCTP_deaminase.
DR   InterPro; IPR029054; dUTPase-like.
DR   InterPro; IPR036157; dUTPase-like_sf.
DR   InterPro; IPR033704; dUTPase_trimeric.
DR   Pfam; PF00692; dUTPase; 1.
DR   SUPFAM; SSF51283; SSF51283; 1.
DR   TIGRFAMs; TIGR02274; dCTP_deam; 1.
PE   3: Inferred from homology;
KW   Hydrolase; Nucleotide metabolism; Nucleotide-binding.
FT   CHAIN           1..188
FT                   /note="dCTP deaminase"
FT                   /id="PRO_1000096441"
FT   ACT_SITE        137
FT                   /note="Proton donor/acceptor"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00146"
FT   BINDING         111..116
FT                   /ligand="dCTP"
FT                   /ligand_id="ChEBI:CHEBI:61481"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00146"
FT   BINDING         135..137
FT                   /ligand="dCTP"
FT                   /ligand_id="ChEBI:CHEBI:61481"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00146"
FT   BINDING         156
FT                   /ligand="dCTP"
FT                   /ligand_id="ChEBI:CHEBI:61481"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00146"
FT   BINDING         170
FT                   /ligand="dCTP"
FT                   /ligand_id="ChEBI:CHEBI:61481"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00146"
FT   BINDING         179
FT                   /ligand="dCTP"
FT                   /ligand_id="ChEBI:CHEBI:61481"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00146"
FT   BINDING         180
FT                   /ligand="dCTP"
FT                   /ligand_id="ChEBI:CHEBI:61481"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00146"
SQ   SEQUENCE   188 AA;  21138 MW;  7C55F419B08B321D CRC64;
     MSIMSDNWIK KMAESENMIS PFVDKQVRTH NNQHILSYGL SSYGYDARVS NEFKIFTNTK
     PSIIDPKKFD QDCLITKISD ICIIPPNSFA LGTTIEYFKM PRDVIAICIG KSTYARCGII
     INVTPLEPEC EGHITLEFSN TTPLPAKIYA GEGACQFLFL KGDQPCNTSY LDRYGRYTKQ
     IGVTLPTV