ID   KCY_METJA               Reviewed;         178 AA.
AC   Q58071;
DT   01-NOV-1997, integrated into UniProtKB/Swiss-Prot.
DT   01-NOV-1996, sequence version 1.
DT   03-AUG-2022, entry version 116.
DE   RecName: Full=Cytidylate kinase;
DE            Short=CK;
DE            EC=2.7.4.25;
DE   AltName: Full=Cytidine monophosphate kinase;
DE            Short=CMP kinase;
GN   Name=cmk; OrderedLocusNames=MJ0656;
OS   Methanocaldococcus jannaschii (strain ATCC 43067 / DSM 2661 / JAL-1 / JCM
OS   10045 / NBRC 100440) (Methanococcus jannaschii).
OC   Archaea; Euryarchaeota; Methanomada group; Methanococci; Methanococcales;
OC   Methanocaldococcaceae; Methanocaldococcus.
OX   NCBI_TaxID=243232;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 43067 / DSM 2661 / JAL-1 / JCM 10045 / NBRC 100440;
RX   PubMed=8688087; DOI=10.1126/science.273.5278.1058;
RA   Bult C.J., White O., Olsen G.J., Zhou L., Fleischmann R.D., Sutton G.G.,
RA   Blake J.A., FitzGerald L.M., Clayton R.A., Gocayne J.D., Kerlavage A.R.,
RA   Dougherty B.A., Tomb J.-F., Adams M.D., Reich C.I., Overbeek R.,
RA   Kirkness E.F., Weinstock K.G., Merrick J.M., Glodek A., Scott J.L.,
RA   Geoghagen N.S.M., Weidman J.F., Fuhrmann J.L., Nguyen D., Utterback T.R.,
RA   Kelley J.M., Peterson J.D., Sadow P.W., Hanna M.C., Cotton M.D.,
RA   Roberts K.M., Hurst M.A., Kaine B.P., Borodovsky M., Klenk H.-P.,
RA   Fraser C.M., Smith H.O., Woese C.R., Venter J.C.;
RT   "Complete genome sequence of the methanogenic archaeon, Methanococcus
RT   jannaschii.";
RL   Science 273:1058-1073(1996).
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=ATP + CMP = ADP + CDP; Xref=Rhea:RHEA:11600,
CC         ChEBI:CHEBI:30616, ChEBI:CHEBI:58069, ChEBI:CHEBI:60377,
CC         ChEBI:CHEBI:456216; EC=2.7.4.25;
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=ATP + dCMP = ADP + dCDP; Xref=Rhea:RHEA:25094,
CC         ChEBI:CHEBI:30616, ChEBI:CHEBI:57566, ChEBI:CHEBI:58593,
CC         ChEBI:CHEBI:456216; EC=2.7.4.25;
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000250}.
CC   -!- SIMILARITY: Belongs to the cytidylate kinase family. Type 2 subfamily.
CC       {ECO:0000305}.
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DR   EMBL; L77117; AAB98651.1; -; Genomic_DNA.
DR   PIR; H64381; H64381.
DR   RefSeq; WP_010870161.1; NC_000909.1.
DR   AlphaFoldDB; Q58071; -.
DR   SMR; Q58071; -.
DR   STRING; 243232.MJ_0656; -.
DR   EnsemblBacteria; AAB98651; AAB98651; MJ_0656.
DR   GeneID; 1451522; -.
DR   KEGG; mja:MJ_0656; -.
DR   eggNOG; arCOG01037; Archaea.
DR   HOGENOM; CLU_079959_1_0_2; -.
DR   InParanoid; Q58071; -.
DR   OMA; ADFRFWL; -.
DR   OrthoDB; 110333at2157; -.
DR   PhylomeDB; Q58071; -.
DR   Proteomes; UP000000805; Chromosome.
DR   GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR   GO; GO:0005524; F:ATP binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0036430; F:CMP kinase activity; IEA:RHEA.
DR   GO; GO:0036431; F:dCMP kinase activity; IEA:RHEA.
DR   GO; GO:0016310; P:phosphorylation; IEA:UniProtKB-KW.
DR   GO; GO:0006220; P:pyrimidine nucleotide metabolic process; IEA:UniProtKB-UniRule.
DR   CDD; cd02020; CMPK; 1.
DR   Gene3D; 3.40.50.300; -; 1.
DR   HAMAP; MF_00239; Cytidyl_kinase_type2; 1.
DR   InterPro; IPR011892; Cyt_kin_arch.
DR   InterPro; IPR011994; Cytidylate_kinase_dom.
DR   InterPro; IPR027417; P-loop_NTPase.
DR   SUPFAM; SSF52540; SSF52540; 1.
DR   TIGRFAMs; TIGR02173; cyt_kin_arch; 1.
PE   3: Inferred from homology;
KW   ATP-binding; Cytoplasm; Kinase; Nucleotide-binding; Reference proteome;
KW   Transferase.
FT   CHAIN           1..178
FT                   /note="Cytidylate kinase"
FT                   /id="PRO_0000132013"
FT   BINDING         7..15
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000250"
SQ   SEQUENCE   178 AA;  20495 MW;  FEC3D475FD8CB7DD CRC64;
     MIITIGGLPG TGTTTIAKMI AEKYNLRHVC AGFIFREMAK EMGMDLQEFS KYAEQHKEID
     EEIDRRQVEI AKQGNVVLEG RLAAWMLLKN GIKPDLTIWF KAPLEVRAER ISKRENIDKD
     VALKKMIERE ASEKKRYKEI YNIDLDDLSI YDLVIDTSKW DVEGVFNIVS SAIDNLKK