ID KITH_BACMK Reviewed; 194 AA. AC A9VSC8; DT 24-MAR-2009, integrated into UniProtKB/Swiss-Prot. DT 05-FEB-2008, sequence version 1. DT 27-MAR-2024, entry version 79. 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}; GN OrderedLocusNames=BcerKBAB4_5128; OS Bacillus mycoides (strain KBAB4) (Bacillus weihenstephanensis). OC Bacteria; Bacillota; Bacilli; Bacillales; Bacillaceae; Bacillus; OC Bacillus cereus group. OX NCBI_TaxID=315730; RN [1] RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. RC STRAIN=KBAB4; RX PubMed=17434157; DOI=10.1016/j.cbi.2007.03.003; RA Lapidus A., Goltsman E., Auger S., Galleron N., Segurens B., Dossat C., RA Land M.L., Broussolle V., Brillard J., Guinebretiere M.-H., Sanchis V., RA Nguen-the C., Lereclus D., Richardson P., Wincker P., Weissenbach J., RA Ehrlich S.D., Sorokin A.; RT "Extending the Bacillus cereus group genomics to putative food-borne RT pathogens of different toxicity."; RL Chem. Biol. Interact. 171:236-249(2008). 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}. CC --------------------------------------------------------------------------- CC Copyrighted by the UniProt Consortium, see https://www.uniprot.org/terms CC Distributed under the Creative Commons Attribution (CC BY 4.0) License CC --------------------------------------------------------------------------- DR EMBL; CP000903; ABY46274.1; -; Genomic_DNA. DR RefSeq; WP_002016305.1; NZ_CAKMRX030000137.1. DR AlphaFoldDB; A9VSC8; -. DR SMR; A9VSC8; -. DR GeneID; 66265114; -. DR KEGG; bwe:BcerKBAB4_5128; -. DR eggNOG; COG1435; Bacteria. DR HOGENOM; CLU_064400_3_0_9; -. DR Proteomes; UP000002154; 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; 3.30.60.20; -; 1. DR Gene3D; 3.40.50.300; P-loop containing nucleotide triphosphate hydrolases; 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; THYMIDINE KINASE; 1. DR PANTHER; PTHR11441:SF0; THYMIDINE KINASE, CYTOSOLIC; 1. DR Pfam; PF00265; TK; 1. DR PIRSF; PIRSF035805; TK_cell; 1. DR SUPFAM; SSF57716; Glucocorticoid receptor-like (DNA-binding domain); 1. DR SUPFAM; SSF52540; P-loop containing nucleoside triphosphate hydrolases; 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..194 FT /note="Thymidine kinase" FT /id="PRO_1000095428" FT ACT_SITE 89 FT /note="Proton acceptor" FT /evidence="ECO:0000255|HAMAP-Rule:MF_00124" FT BINDING 15..22 FT /ligand="ATP" FT /ligand_id="ChEBI:CHEBI:30616" FT /evidence="ECO:0000255|HAMAP-Rule:MF_00124" FT BINDING 88..91 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 148 FT /ligand="Zn(2+)" FT /ligand_id="ChEBI:CHEBI:29105" FT /evidence="ECO:0000255|HAMAP-Rule:MF_00124" FT BINDING 183 FT /ligand="Zn(2+)" FT /ligand_id="ChEBI:CHEBI:29105" FT /evidence="ECO:0000255|HAMAP-Rule:MF_00124" FT BINDING 186 FT /ligand="Zn(2+)" FT /ligand_id="ChEBI:CHEBI:29105" FT /evidence="ECO:0000255|HAMAP-Rule:MF_00124" SQ SEQUENCE 194 AA; 21704 MW; 45679B89D0EF3958 CRC64; MYLMNQNGWI EVICGSMFSG KSEELIRRIR RTQFAKQHAI VFKPCIDNRY SEEDVVSHNG LKVKAVPVSA SKDIFNHVTE EMDVIAIDEV QFFDGDIVEV VQVLANRGYR VIVAGLDQDF RGLPFGQVPQ LMAIAEHVTK LQAVCSECGS PASRTQRLID GEPAAFDDPI ILVGASESYE PRCRHCHAVP TKQR //