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Database: UniProt
Entry: Q3K118
LinkDB: Q3K118
Original site: Q3K118 
ID   KITH_STRA1              Reviewed;         189 AA.
AC   Q3K118;
DT   27-JUN-2006, integrated into UniProtKB/Swiss-Prot.
DT   08-NOV-2005, sequence version 1.
DT   05-DEC-2018, entry version 70.
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=SAK_1164;
OS   Streptococcus agalactiae serotype Ia (strain ATCC 27591 / A909 / CDC
OS   SS700).
OC   Bacteria; Firmicutes; Bacilli; Lactobacillales; Streptococcaceae;
OC   Streptococcus.
OX   NCBI_TaxID=205921;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 27591 / A909 / CDC SS700;
RX   PubMed=16172379; DOI=10.1073/pnas.0506758102;
RA   Tettelin H., Masignani V., Cieslewicz M.J., Donati C., Medini D.,
RA   Ward N.L., Angiuoli S.V., Crabtree J., Jones A.L., Durkin A.S.,
RA   DeBoy R.T., Davidsen T.M., Mora M., Scarselli M., Margarit y Ros I.,
RA   Peterson J.D., Hauser C.R., Sundaram J.P., Nelson W.C., Madupu R.,
RA   Brinkac L.M., Dodson R.J., Rosovitz M.J., Sullivan S.A.,
RA   Daugherty S.C., Haft D.H., Selengut J., Gwinn M.L., Zhou L., Zafar N.,
RA   Khouri H., Radune D., Dimitrov G., Watkins K., O'Connor K.J.,
RA   Smith S., Utterback T.R., White O., Rubens C.E., Grandi G.,
RA   Madoff L.C., Kasper D.L., Telford J.L., Wessels M.R., Rappuoli R.,
RA   Fraser C.M.;
RT   "Genome analysis of multiple pathogenic isolates of Streptococcus
RT   agalactiae: implications for the microbial 'pan-genome'.";
RL   Proc. Natl. Acad. Sci. U.S.A. 102:13950-13955(2005).
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=ATP + thymidine = ADP + dTMP + H(+);
CC         Xref=Rhea:RHEA:19129, ChEBI:CHEBI:15378, ChEBI:CHEBI:17748,
CC         ChEBI:CHEBI:30616, ChEBI:CHEBI:63528, ChEBI:CHEBI:456216;
CC         EC=2.7.1.21; 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.
CC       {ECO:0000255|HAMAP-Rule:MF_00124}.
DR   EMBL; CP000114; ABA45912.1; -; Genomic_DNA.
DR   RefSeq; WP_000068109.1; NC_007432.1.
DR   ProteinModelPortal; Q3K118; -.
DR   EnsemblBacteria; ABA45912; ABA45912; SAK_1164.
DR   KEGG; sak:SAK_1164; -.
DR   HOGENOM; HOG000076391; -.
DR   KO; K00857; -.
DR   OMA; KEQFGWI; -.
DR   BioCyc; SAGA205921:G1G54-1197-MONOMER; -.
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   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    189       Thymidine kinase.
FT                                /FTId=PRO_0000242810.
FT   NP_BIND       9     16       ATP. {ECO:0000255|HAMAP-Rule:MF_00124}.
FT   NP_BIND      85     88       ATP. {ECO:0000255|HAMAP-Rule:MF_00124}.
FT   ACT_SITE     86     86       Proton acceptor. {ECO:0000255|HAMAP-
FT                                Rule:MF_00124}.
FT   METAL       143    143       Zinc. {ECO:0000255|HAMAP-Rule:MF_00124}.
FT   METAL       146    146       Zinc. {ECO:0000255|HAMAP-Rule:MF_00124}.
FT   METAL       180    180       Zinc. {ECO:0000255|HAMAP-Rule:MF_00124}.
FT   METAL       183    183       Zinc. {ECO:0000255|HAMAP-Rule:MF_00124}.
SQ   SEQUENCE   189 AA;  21593 MW;  38BAAF6B62940D4A CRC64;
     MAQLYYKYGT MNSGKTIEIL KVAHNYEEQG KPVVIMTSAL DTRDEFGVVS SRIGMRREAV
     PISDDMDIFS YIQNLPQKPY CVLIDECQFL SKKNVYDLAR VVDDLDVPVM AFGLKNDFQN
     NLFEGSKHLL LLADKIDEIK TICQYCSKKA TMVLRTENGK PVYEGDQIQI GGNETYIPVC
     RKHYFNPDI
//
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