ID   KITH_DEIRA              Reviewed;         212 AA.
AC   Q9RSY5;
DT   01-MAR-2005, integrated into UniProtKB/Swiss-Prot.
DT   01-MAY-2000, sequence version 1.
DT   03-AUG-2022, entry version 106.
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=DR_1984;
OS   Deinococcus radiodurans (strain ATCC 13939 / DSM 20539 / JCM 16871 / LMG
OS   4051 / NBRC 15346 / NCIMB 9279 / R1 / VKM B-1422).
OC   Bacteria; Deinococcus-Thermus; Deinococci; Deinococcales; Deinococcaceae;
OC   Deinococcus.
OX   NCBI_TaxID=243230;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 13939 / DSM 20539 / JCM 16871 / LMG 4051 / NBRC 15346 / NCIMB
RC   9279 / R1 / VKM B-1422;
RX   PubMed=10567266; DOI=10.1126/science.286.5444.1571;
RA   White O., Eisen J.A., Heidelberg J.F., Hickey E.K., Peterson J.D.,
RA   Dodson R.J., Haft D.H., Gwinn M.L., Nelson W.C., Richardson D.L.,
RA   Moffat K.S., Qin H., Jiang L., Pamphile W., Crosby M., Shen M.,
RA   Vamathevan J.J., Lam P., McDonald L.A., Utterback T.R., Zalewski C.,
RA   Makarova K.S., Aravind L., Daly M.J., Minton K.W., Fleischmann R.D.,
RA   Ketchum K.A., Nelson K.E., Salzberg S.L., Smith H.O., Venter J.C.,
RA   Fraser C.M.;
RT   "Genome sequence of the radioresistant bacterium Deinococcus radiodurans
RT   R1.";
RL   Science 286:1571-1577(1999).
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; AE000513; AAF11536.1; -; Genomic_DNA.
DR   PIR; C75330; C75330.
DR   RefSeq; NP_295707.1; NC_001263.1.
DR   RefSeq; WP_010888617.1; NC_001263.1.
DR   AlphaFoldDB; Q9RSY5; -.
DR   SMR; Q9RSY5; -.
DR   STRING; 243230.DR_1984; -.
DR   EnsemblBacteria; AAF11536; AAF11536; DR_1984.
DR   KEGG; dra:DR_1984; -.
DR   PATRIC; fig|243230.17.peg.2207; -.
DR   eggNOG; COG1435; Bacteria.
DR   HOGENOM; CLU_064400_3_0_0; -.
DR   InParanoid; Q9RSY5; -.
DR   OMA; ENTVNHK; -.
DR   OrthoDB; 1279539at2; -.
DR   BRENDA; 2.7.1.21; 1856.
DR   Proteomes; UP000002524; Chromosome I.
DR   GO; GO:0005829; C:cytosol; IBA:GO_Central.
DR   GO; GO:0005524; F:ATP binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0004797; F:thymidine kinase activity; IBA:GO_Central.
DR   GO; GO:0071897; P:DNA biosynthetic process; IEA:UniProtKB-KW.
DR   GO; GO:0016310; P:phosphorylation; IEA:UniProtKB-KW.
DR   GO; GO:0046104; P:thymidine metabolic process; IBA:GO_Central.
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   PANTHER; PTHR11441; PTHR11441; 1.
DR   Pfam; PF00265; TK; 1.
DR   PIRSF; PIRSF035805; TK_cell; 1.
DR   SUPFAM; SSF52540; SSF52540; 1.
PE   3: Inferred from homology;
KW   ATP-binding; Cytoplasm; DNA synthesis; Kinase; Nucleotide-binding;
KW   Reference proteome; Transferase.
FT   CHAIN           1..212
FT                   /note="Thymidine kinase"
FT                   /id="PRO_0000174970"
FT   ACT_SITE        100
FT                   /note="Proton acceptor"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00124"
FT   BINDING         16..23
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00124"
FT   BINDING         99..102
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00124"
SQ   SEQUENCE   212 AA;  22398 MW;  5ACD76A28C6F88A8 CRC64;
     MLRSPYSGGH LEVVVGPMFS GKSEELIRRL TRSLIARQRV AVFKPAIDNR YHASEVASHA
     GRTLEAVAVP DAQAIRAQLS GQGELLSAAP EGVDVIGIDE AQFFGPELVP LVLELADAGV
     RVVLAGLDLD FRAEPFGSMP ELLARAESVD KLTAICTVCG APATRTQRLI GGQPARFDDP
     VVLVGAQESY EALPRAPHRA QGGVTTPSPL AS