ID   KITH_MESHJ              Reviewed;         184 AA.
AC   Q4A977;
DT   27-JUN-2006, integrated into UniProtKB/Swiss-Prot.
DT   13-SEP-2005, sequence version 1.
DT   27-MAR-2024, entry version 88.
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=MHJ_0610;
OS   Mesomycoplasma hyopneumoniae (strain J / ATCC 25934 / NCTC 10110)
OS   (Mycoplasma hyopneumoniae).
OC   Bacteria; Mycoplasmatota; Mycoplasmoidales; Metamycoplasmataceae;
OC   Mesomycoplasma.
OX   NCBI_TaxID=262719;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=J / ATCC 25934 / NCTC 10110;
RX   PubMed=16077101; DOI=10.1128/jb.187.16.5568-5577.2005;
RA   Vasconcelos A.T.R., Ferreira H.B., Bizarro C.V., Bonatto S.L.,
RA   Carvalho M.O., Pinto P.M., Almeida D.F., Almeida L.G.P., Almeida R.,
RA   Alves-Junior L., Assuncao E.N., Azevedo V.A.C., Bogo M.R., Brigido M.M.,
RA   Brocchi M., Burity H.A., Camargo A.A., Camargo S.S., Carepo M.S.,
RA   Carraro D.M., de Mattos Cascardo J.C., Castro L.A., Cavalcanti G.,
RA   Chemale G., Collevatti R.G., Cunha C.W., Dallagiovanna B., Dambros B.P.,
RA   Dellagostin O.A., Falcao C., Fantinatti-Garboggini F., Felipe M.S.S.,
RA   Fiorentin L., Franco G.R., Freitas N.S.A., Frias D., Grangeiro T.B.,
RA   Grisard E.C., Guimaraes C.T., Hungria M., Jardim S.N., Krieger M.A.,
RA   Laurino J.P., Lima L.F.A., Lopes M.I., Loreto E.L.S., Madeira H.M.F.,
RA   Manfio G.P., Maranhao A.Q., Martinkovics C.T., Medeiros S.R.B.,
RA   Moreira M.A.M., Neiva M., Ramalho-Neto C.E., Nicolas M.F., Oliveira S.C.,
RA   Paixao R.F.C., Pedrosa F.O., Pena S.D.J., Pereira M., Pereira-Ferrari L.,
RA   Piffer I., Pinto L.S., Potrich D.P., Salim A.C.M., Santos F.R., Schmitt R.,
RA   Schneider M.P.C., Schrank A., Schrank I.S., Schuck A.F., Seuanez H.N.,
RA   Silva D.W., Silva R., Silva S.C., Soares C.M.A., Souza K.R.L., Souza R.C.,
RA   Staats C.C., Steffens M.B.R., Teixeira S.M.R., Urmenyi T.P.,
RA   Vainstein M.H., Zuccherato L.W., Simpson A.J.G., Zaha A.;
RT   "Swine and poultry pathogens: the complete genome sequences of two strains
RT   of Mycoplasma hyopneumoniae and a strain of Mycoplasma synoviae.";
RL   J. Bacteriol. 187:5568-5577(2005).
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; AE017243; AAZ44694.1; -; Genomic_DNA.
DR   RefSeq; WP_011206458.1; NC_007295.1.
DR   AlphaFoldDB; Q4A977; -.
DR   SMR; Q4A977; -.
DR   GeneID; 57101480; -.
DR   KEGG; mhj:MHJ_0610; -.
DR   eggNOG; COG1435; Bacteria.
DR   HOGENOM; CLU_064400_3_0_14; -.
DR   OrthoDB; 9781579at2; -.
DR   Proteomes; UP000000548; 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..184
FT                   /note="Thymidine kinase"
FT                   /id="PRO_0000242797"
FT   ACT_SITE        90
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         89..92
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00124"
FT   BINDING         146
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00124"
FT   BINDING         149
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00124"
FT   BINDING         178
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00124"
FT   BINDING         181
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00124"
SQ   SEQUENCE   184 AA;  20911 MW;  D9F531A695AC2BED CRC64;
     MYKKFFDGVI EVITGPMFSG KSDELIKRIK ILTYADIKTL VIKPSVDYRF SQCEIVSRSG
     LKIPTFLART TQEIRDLFTR DNYQAIAIDE IQFFDEEIVT FLEQIADKGI RVIVSGLDQD
     FRRKPFGSLP NLMAIAENVT KLQAVCSLCK RAATTTARKV LNEAQTLIGD QDEYEARCRA
     CHSL
//