ID   KTHY_LACAC              Reviewed;         216 AA.
AC   Q5FM02;
DT   30-AUG-2005, integrated into UniProtKB/Swiss-Prot.
DT   01-MAR-2005, sequence version 1.
DT   03-AUG-2022, entry version 84.
DE   RecName: Full=Thymidylate kinase {ECO:0000255|HAMAP-Rule:MF_00165};
DE            EC=2.7.4.9 {ECO:0000255|HAMAP-Rule:MF_00165};
DE   AltName: Full=dTMP kinase {ECO:0000255|HAMAP-Rule:MF_00165};
GN   Name=tmk {ECO:0000255|HAMAP-Rule:MF_00165}; OrderedLocusNames=LBA0381;
OS   Lactobacillus acidophilus (strain ATCC 700396 / NCK56 / N2 / NCFM).
OC   Bacteria; Firmicutes; Bacilli; Lactobacillales; Lactobacillaceae;
OC   Lactobacillus.
OX   NCBI_TaxID=272621;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 700396 / NCK56 / N2 / NCFM;
RX   PubMed=15671160; DOI=10.1073/pnas.0409188102;
RA   Altermann E., Russell W.M., Azcarate-Peril M.A., Barrangou R., Buck B.L.,
RA   McAuliffe O., Souther N., Dobson A., Duong T., Callanan M., Lick S.,
RA   Hamrick A., Cano R., Klaenhammer T.R.;
RT   "Complete genome sequence of the probiotic lactic acid bacterium
RT   Lactobacillus acidophilus NCFM.";
RL   Proc. Natl. Acad. Sci. U.S.A. 102:3906-3912(2005).
CC   -!- FUNCTION: Phosphorylation of dTMP to form dTDP in both de novo and
CC       salvage pathways of dTTP synthesis. {ECO:0000255|HAMAP-Rule:MF_00165}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=ATP + dTMP = ADP + dTDP; Xref=Rhea:RHEA:13517,
CC         ChEBI:CHEBI:30616, ChEBI:CHEBI:58369, ChEBI:CHEBI:63528,
CC         ChEBI:CHEBI:456216; EC=2.7.4.9; Evidence={ECO:0000255|HAMAP-
CC         Rule:MF_00165};
CC   -!- SIMILARITY: Belongs to the thymidylate kinase family.
CC       {ECO:0000255|HAMAP-Rule:MF_00165}.
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DR   EMBL; CP000033; AAV42272.1; -; Genomic_DNA.
DR   RefSeq; WP_011254134.1; NC_006814.3.
DR   RefSeq; YP_193303.1; NC_006814.3.
DR   AlphaFoldDB; Q5FM02; -.
DR   SMR; Q5FM02; -.
DR   STRING; 272621.LBA0381; -.
DR   PRIDE; Q5FM02; -.
DR   EnsemblBacteria; AAV42272; AAV42272; LBA0381.
DR   GeneID; 56941988; -.
DR   KEGG; lac:LBA0381; -.
DR   PATRIC; fig|272621.13.peg.367; -.
DR   eggNOG; COG0125; Bacteria.
DR   HOGENOM; CLU_049131_0_2_9; -.
DR   OMA; VMTREPG; -.
DR   BioCyc; LACI272621:G1G49-375-MON; -.
DR   Proteomes; UP000006381; Chromosome.
DR   GO; GO:0005524; F:ATP binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0004798; F:thymidylate kinase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0006233; P:dTDP biosynthetic process; IEA:InterPro.
DR   GO; GO:0006235; P:dTTP biosynthetic process; IEA:UniProtKB-UniRule.
DR   GO; GO:0016310; P:phosphorylation; IEA:UniProtKB-KW.
DR   Gene3D; 3.40.50.300; -; 1.
DR   HAMAP; MF_00165; Thymidylate_kinase; 1.
DR   InterPro; IPR027417; P-loop_NTPase.
DR   InterPro; IPR039430; Thymidylate_kin-like_dom.
DR   InterPro; IPR018094; Thymidylate_kinase.
DR   Pfam; PF02223; Thymidylate_kin; 1.
DR   SUPFAM; SSF52540; SSF52540; 1.
DR   TIGRFAMs; TIGR00041; DTMP_kinase; 1.
PE   3: Inferred from homology;
KW   ATP-binding; Kinase; Nucleotide biosynthesis; Nucleotide-binding;
KW   Reference proteome; Transferase.
FT   CHAIN           1..216
FT                   /note="Thymidylate kinase"
FT                   /id="PRO_0000155286"
FT   BINDING         10..17
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00165"
SQ   SEQUENCE   216 AA;  24300 MW;  15BA1231B347A63B CRC64;
     MKGYFVSFEG PDGAGKSTVL KEVLAEIAPQ LKTQYLVTRE PGGSKIAEKI RDIILDPAND
     KMDPKTEALL YAAARSQHVE EIIKPAINEG KVVFSDRFVD SSLAYQGQGR DLGIAKVKQI
     NDFATDKLDP DLTFFLDIAP EIGLSRIKKL RPAQEDRLEQ EDIAFHQKVY EGFLKVIKMY
     PDRFVVINAT QPIDQVVKQV VTELKQRLPK TILENN