ID   KCY_SULIY               Reviewed;         189 AA.
AC   C3NEH0;
DT   22-SEP-2009, integrated into UniProtKB/Swiss-Prot.
DT   16-JUN-2009, sequence version 1.
DT   03-AUG-2022, entry version 68.
DE   RecName: Full=Cytidylate kinase {ECO:0000255|HAMAP-Rule:MF_00239};
DE            Short=CK {ECO:0000255|HAMAP-Rule:MF_00239};
DE            EC=2.7.4.25 {ECO:0000255|HAMAP-Rule:MF_00239};
DE   AltName: Full=Cytidine monophosphate kinase {ECO:0000255|HAMAP-Rule:MF_00239};
DE            Short=CMP kinase {ECO:0000255|HAMAP-Rule:MF_00239};
GN   Name=cmk {ECO:0000255|HAMAP-Rule:MF_00239}; OrderedLocusNames=YG5714_1442;
OS   Sulfolobus islandicus (strain Y.G.57.14 / Yellowstone #1).
OC   Archaea; Crenarchaeota; Thermoprotei; Sulfolobales; Sulfolobaceae;
OC   Sulfolobus.
OX   NCBI_TaxID=439386;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=Y.G.57.14 / Yellowstone #1;
RX   PubMed=19435847; DOI=10.1073/pnas.0808945106;
RA   Reno M.L., Held N.L., Fields C.J., Burke P.V., Whitaker R.J.;
RT   "Biogeography of the Sulfolobus islandicus pan-genome.";
RL   Proc. Natl. Acad. Sci. U.S.A. 106:8605-8610(2009).
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; Evidence={ECO:0000255|HAMAP-
CC         Rule:MF_00239};
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; Evidence={ECO:0000255|HAMAP-
CC         Rule:MF_00239};
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_00239}.
CC   -!- SIMILARITY: Belongs to the cytidylate kinase family. Type 2 subfamily.
CC       {ECO:0000255|HAMAP-Rule:MF_00239}.
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DR   EMBL; CP001403; ACP45709.1; -; Genomic_DNA.
DR   RefSeq; WP_012716182.1; NC_012622.1.
DR   AlphaFoldDB; C3NEH0; -.
DR   SMR; C3NEH0; -.
DR   EnsemblBacteria; ACP45709; ACP45709; YG5714_1442.
DR   GeneID; 7809793; -.
DR   GeneID; 8761480; -.
DR   KEGG; siy:YG5714_1442; -.
DR   HOGENOM; CLU_079959_1_0_2; -.
DR   OMA; FIFRDMA; -.
DR   Proteomes; UP000002308; 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; Transferase.
FT   CHAIN           1..189
FT                   /note="Cytidylate kinase"
FT                   /id="PRO_1000204464"
FT   BINDING         7..15
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00239"
SQ   SEQUENCE   189 AA;  21730 MW;  9EB1BE5205D8A3E6 CRC64;
     MIIIISGPPG SGKTSVAIKL ANELSYKFIS AGKIFRDIAQ KMGLDIINLN KVAESNFDID
     KMVDKKIFEF ILSEKNLIIE SHIAGWLFRE YTNIAIYLWA PLKIRANRIA IRDKISYDQA
     ISQIIKREYM HYKRFNKFYG IDINDLSVFD LVINTSNVDV NNIVKLILTY LSLVSQNPQP
     LKEKDINDK