ID I0BU01_9BACL Unreviewed; 192 AA. AC I0BU01; DT 13-JUN-2012, integrated into UniProtKB/TrEMBL. DT 13-JUN-2012, sequence version 1. DT 24-JAN-2024, entry version 50. DE RecName: Full=Thymidine kinase {ECO:0000256|ARBA:ARBA00012118, ECO:0000256|HAMAP-Rule:MF_00124}; DE EC=2.7.1.21 {ECO:0000256|ARBA:ARBA00012118, ECO:0000256|HAMAP-Rule:MF_00124}; GN Name=tdk {ECO:0000256|HAMAP-Rule:MF_00124}; GN ORFNames=B2K_34965 {ECO:0000313|EMBL:AFH65848.1}; OS Paenibacillus mucilaginosus K02. OC Bacteria; Bacillota; Bacilli; Bacillales; Paenibacillaceae; Paenibacillus. OX NCBI_TaxID=997761 {ECO:0000313|EMBL:AFH65848.1, ECO:0000313|Proteomes:UP000007392}; RN [1] {ECO:0000313|EMBL:AFH65848.1, ECO:0000313|Proteomes:UP000007392} RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. RC STRAIN=K02 {ECO:0000313|EMBL:AFH65848.1, RC ECO:0000313|Proteomes:UP000007392}; RA Xiao B., Sun L., Xiao L., Lian B.; RT "Complete genome sequence of Paenibacillus mucilaginosus K02."; RL Submitted (JUN-2013) to the EMBL/GenBank/DDBJ databases. 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:0000256|HAMAP-Rule:MF_00124, CC ECO:0000256|RuleBase:RU000544}; CC -!- SUBUNIT: Homotetramer. {ECO:0000256|HAMAP-Rule:MF_00124}. CC -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000256|HAMAP-Rule:MF_00124}. CC -!- SIMILARITY: Belongs to the thymidine kinase family. CC {ECO:0000256|ARBA:ARBA00007587, ECO:0000256|HAMAP-Rule:MF_00124, CC ECO:0000256|RuleBase:RU004165}. 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; CP003422; AFH65848.1; -; Genomic_DNA. DR RefSeq; WP_014372495.1; NC_017672.3. DR AlphaFoldDB; I0BU01; -. DR KEGG; pmw:B2K_34965; -. DR PATRIC; fig|997761.3.peg.7040; -. DR HOGENOM; CLU_064400_2_2_9; -. DR OrthoDB; 9781579at2; -. DR Proteomes; UP000007392; 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 {ECO:0000256|ARBA:ARBA00022840, ECO:0000256|HAMAP- KW Rule:MF_00124}; Cytoplasm {ECO:0000256|HAMAP-Rule:MF_00124}; KW DNA synthesis {ECO:0000256|ARBA:ARBA00022634, ECO:0000256|HAMAP- KW Rule:MF_00124}; KW Kinase {ECO:0000256|ARBA:ARBA00022777, ECO:0000256|HAMAP-Rule:MF_00124}; KW Metal-binding {ECO:0000256|HAMAP-Rule:MF_00124}; KW Nucleotide-binding {ECO:0000256|ARBA:ARBA00022741, ECO:0000256|HAMAP- KW Rule:MF_00124}; KW Transferase {ECO:0000256|ARBA:ARBA00022679, ECO:0000256|HAMAP- KW Rule:MF_00124}; Zinc {ECO:0000256|HAMAP-Rule:MF_00124}. FT ACT_SITE 84 FT /note="Proton acceptor" FT /evidence="ECO:0000256|HAMAP-Rule:MF_00124, FT ECO:0000256|PIRSR:PIRSR035805-1" FT BINDING 9..16 FT /ligand="ATP" FT /ligand_id="ChEBI:CHEBI:30616" FT /evidence="ECO:0000256|HAMAP-Rule:MF_00124" FT BINDING 83..86 FT /ligand="ATP" FT /ligand_id="ChEBI:CHEBI:30616" FT /evidence="ECO:0000256|HAMAP-Rule:MF_00124" FT BINDING 141 FT /ligand="Zn(2+)" FT /ligand_id="ChEBI:CHEBI:29105" FT /evidence="ECO:0000256|HAMAP-Rule:MF_00124" FT BINDING 144 FT /ligand="Zn(2+)" FT /ligand_id="ChEBI:CHEBI:29105" FT /evidence="ECO:0000256|HAMAP-Rule:MF_00124" FT BINDING 178 FT /ligand="Zn(2+)" FT /ligand_id="ChEBI:CHEBI:29105" FT /evidence="ECO:0000256|HAMAP-Rule:MF_00124" FT BINDING 181 FT /ligand="Zn(2+)" FT /ligand_id="ChEBI:CHEBI:29105" FT /evidence="ECO:0000256|HAMAP-Rule:MF_00124" SQ SEQUENCE 192 AA; 21535 MW; 4258BBEE5A93EA5F CRC64; MAQLYFRYGT MNSGKSIEVL RVAHNYEEQG KKVLLFTPAV DDREGVGVVA SRIGMRKDGI IIDEHLDMVA MAAQERPNCI LIDEAQFLTK AQVEQLTEIT DTLGIPVITY GLRGDFLGQL FEGSMHLFAL ADKIEEIKTV CWYCDRKATM NMRCKDGVPV FTGEQIQIGG NESYIPVCRK CYSRQKKTAA AQ //