ID   KTHY_BUCAI              Reviewed;         212 AA.
AC   P57434;
DT   01-DEC-2000, integrated into UniProtKB/Swiss-Prot.
DT   01-DEC-2000, sequence version 1.
DT   03-AUG-2022, entry version 101.
DE   RecName: Full=Thymidylate kinase;
DE            EC=2.7.4.9;
DE   AltName: Full=dTMP kinase;
GN   Name=tmk; OrderedLocusNames=BU353;
OS   Buchnera aphidicola subsp. Acyrthosiphon pisum (strain APS) (Acyrthosiphon
OS   pisum symbiotic bacterium).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC   Erwiniaceae; Buchnera.
OX   NCBI_TaxID=107806;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=APS;
RX   PubMed=10993077; DOI=10.1038/35024074;
RA   Shigenobu S., Watanabe H., Hattori M., Sakaki Y., Ishikawa H.;
RT   "Genome sequence of the endocellular bacterial symbiont of aphids Buchnera
RT   sp. APS.";
RL   Nature 407:81-86(2000).
CC   -!- FUNCTION: Phosphorylation of dTMP to form dTDP in both de novo and
CC       salvage pathways of dTTP synthesis. {ECO:0000250}.
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;
CC   -!- SIMILARITY: Belongs to the thymidylate kinase family. {ECO:0000305}.
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DR   EMBL; BA000003; BAB13057.1; -; Genomic_DNA.
DR   RefSeq; NP_240171.1; NC_002528.1.
DR   RefSeq; WP_010896081.1; NC_002528.1.
DR   AlphaFoldDB; P57434; -.
DR   SMR; P57434; -.
DR   STRING; 107806.10039023; -.
DR   EnsemblBacteria; BAB13057; BAB13057; BAB13057.
DR   KEGG; buc:BU353; -.
DR   PATRIC; fig|107806.10.peg.366; -.
DR   eggNOG; COG0125; Bacteria.
DR   HOGENOM; CLU_049131_0_1_6; -.
DR   OMA; VMTREPG; -.
DR   Proteomes; UP000001806; 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; IPR018095; Thymidylate_kin_CS.
DR   InterPro; IPR018094; Thymidylate_kinase.
DR   Pfam; PF02223; Thymidylate_kin; 1.
DR   SUPFAM; SSF52540; SSF52540; 1.
DR   TIGRFAMs; TIGR00041; DTMP_kinase; 1.
DR   PROSITE; PS01331; THYMIDYLATE_KINASE; 1.
PE   3: Inferred from homology;
KW   ATP-binding; Kinase; Nucleotide biosynthesis; Nucleotide-binding;
KW   Reference proteome; Transferase.
FT   CHAIN           1..212
FT                   /note="Thymidylate kinase"
FT                   /id="PRO_0000155249"
FT   BINDING         11..18
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255"
SQ   SEQUENCE   212 AA;  24247 MW;  C999F8C1A404348B CRC64;
     MIKSKFIVIE GLEGAGKTNA CICIKNLLKK NSIKNVLLVR QPGSTPIAED IRRLIKKKFN
     DDNLIKETEL LLMYAARIQL VEKKIKPALK NGIWVISDRH DLSSLAYQGG GLGIPKKIIY
     QLQSLFLNNF IPDLTIYLDV SPEIGLARAL KRNPLDLIES RSLFFFKKTR RCYLEKSKLD
     KKTIIINANL NIKKVTQNIT KKMLNWLNKQ VI