ID   KITH_MANSM              Reviewed;         195 AA.
AC   Q65RN9;
DT   01-MAR-2005, integrated into UniProtKB/Swiss-Prot.
DT   25-OCT-2004, sequence version 1.
DT   03-AUG-2022, entry version 84.
DE   RecName: Full=Thymidine kinase {ECO:0000255|HAMAP-Rule:MF_00124};
DE            EC=2.7.1.21 {ECO:0000255|HAMAP-Rule:MF_00124};
GN   Name=tdk {ECO:0000255|HAMAP-Rule:MF_00124}; OrderedLocusNames=MS1764;
OS   Mannheimia succiniciproducens (strain MBEL55E).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Pasteurellales;
OC   Pasteurellaceae; Basfia.
OX   NCBI_TaxID=221988;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=MBEL55E;
RX   PubMed=15378067; DOI=10.1038/nbt1010;
RA   Hong S.H., Kim J.S., Lee S.Y., In Y.H., Choi S.S., Rih J.-K., Kim C.H.,
RA   Jeong H., Hur C.G., Kim J.J.;
RT   "The genome sequence of the capnophilic rumen bacterium Mannheimia
RT   succiniciproducens.";
RL   Nat. Biotechnol. 22:1275-1281(2004).
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=ATP + thymidine = ADP + dTMP + H(+); Xref=Rhea:RHEA:19129,
CC         ChEBI:CHEBI:15378, ChEBI:CHEBI:17748, ChEBI:CHEBI:30616,
CC         ChEBI:CHEBI:63528, ChEBI:CHEBI:456216; EC=2.7.1.21;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_00124};
CC   -!- SUBUNIT: Homotetramer. {ECO:0000255|HAMAP-Rule:MF_00124}.
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_00124}.
CC   -!- SIMILARITY: Belongs to the thymidine kinase family. {ECO:0000255|HAMAP-
CC       Rule:MF_00124}.
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DR   EMBL; AE016827; AAU38371.1; -; Genomic_DNA.
DR   RefSeq; WP_011200929.1; NC_006300.1.
DR   AlphaFoldDB; Q65RN9; -.
DR   SMR; Q65RN9; -.
DR   STRING; 221988.MS1764; -.
DR   PRIDE; Q65RN9; -.
DR   EnsemblBacteria; AAU38371; AAU38371; MS1764.
DR   KEGG; msu:MS1764; -.
DR   eggNOG; COG1435; Bacteria.
DR   HOGENOM; CLU_064400_2_1_6; -.
DR   OMA; ENTVNHK; -.
DR   OrthoDB; 1279539at2; -.
DR   Proteomes; UP000000607; Chromosome.
DR   GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR   GO; GO:0005524; F:ATP binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0004797; F:thymidine kinase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0008270; F:zinc ion binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0071897; P:DNA biosynthetic process; IEA:UniProtKB-KW.
DR   GO; GO:0016310; P:phosphorylation; IEA:UniProtKB-KW.
DR   Gene3D; 3.40.50.300; -; 1.
DR   HAMAP; MF_00124; Thymidine_kinase; 1.
DR   InterPro; IPR027417; P-loop_NTPase.
DR   InterPro; IPR001267; Thymidine_kinase.
DR   InterPro; IPR020633; Thymidine_kinase_CS.
DR   PANTHER; PTHR11441; PTHR11441; 1.
DR   Pfam; PF00265; TK; 1.
DR   PIRSF; PIRSF035805; TK_cell; 1.
DR   SUPFAM; SSF52540; SSF52540; 1.
DR   PROSITE; PS00603; TK_CELLULAR_TYPE; 1.
PE   3: Inferred from homology;
KW   ATP-binding; Cytoplasm; DNA synthesis; Kinase; Metal-binding;
KW   Nucleotide-binding; Transferase; Zinc.
FT   CHAIN           1..195
FT                   /note="Thymidine kinase"
FT                   /id="PRO_0000174991"
FT   ACT_SITE        88
FT                   /note="Proton acceptor"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00124"
FT   BINDING         9..16
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00124"
FT   BINDING         87..90
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00124"
FT   BINDING         145
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00124"
FT   BINDING         147
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00124"
FT   BINDING         182
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00124"
FT   BINDING         185
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00124"
SQ   SEQUENCE   195 AA;  22491 MW;  DF44C6A4924F54FF CRC64;
     MAKLYFYYST MNAGKSTTLL QSAYNYNERN MNTLVYTAAI DDRFGAGRVT SRIGISQQAK
     LFNRESNLFE EIKRHLASEK LHCILIDEAQ FLTKQQVYQL SDVVDLLNIP VLCYGLRTDF
     QAELFEGSQY LLAWADQLEE LKTICHCGRK ANFVLRLNER GDVVKDGEQI QIGGNERYLS
     VCRFHFKQKT GKLHN