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Database: UniProt
Entry: P23335
LinkDB: P23335
Original site: P23335 
ID   KITH_SWPVK              Reviewed;         177 AA.
AC   P23335;
DT   01-NOV-1991, integrated into UniProtKB/Swiss-Prot.
DT   01-NOV-1991, sequence version 1.
DT   05-DEC-2018, entry version 69.
DE   RecName: Full=Thymidine kinase;
DE            EC=2.7.1.21;
GN   Name=TK; ORFNames=SWF8;
OS   Swinepox virus (strain Kasza) (SWPV).
OC   Viruses; dsDNA viruses, no RNA stage; Poxviridae; Chordopoxvirinae;
OC   Suipoxvirus.
OX   NCBI_TaxID=10277;
OH   NCBI_TaxID=9823; Sus scrofa (Pig).
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RX   PubMed=1853562; DOI=10.1016/0042-6822(91)90986-L;
RA   Feller J.A., Massung R.F., Turner P.C., Gibbs E.P.J., Bockamp E.O.,
RA   Beloso A., Talavera A., Vinuela E., Moyer R.W.;
RT   "Isolation and molecular characterization of the swinepox virus
RT   thymidine kinase gene.";
RL   Virology 183:578-585(1991).
RN   [2]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RX   PubMed=1840707; DOI=10.1016/0042-6822(91)90907-S;
RA   Schnitzlein W.M., Tripathy D.N.;
RT   "Identification and nucleotide sequence of the thymidine kinase gene
RT   of swinepox virus.";
RL   Virology 181:727-732(1991).
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;
CC   -!- SIMILARITY: Belongs to the thymidine kinase family. {ECO:0000305}.
CC   -!- SEQUENCE CAUTION:
CC       Sequence=AAA47894.1; Type=Erroneous initiation; Evidence={ECO:0000305};
DR   EMBL; M64000; AAA47894.1; ALT_INIT; Genomic_DNA.
DR   EMBL; M59931; AAA47891.1; -; Genomic_DNA.
DR   PIR; B37949; KIVZSW.
DR   ProteinModelPortal; P23335; -.
DR   SMR; P23335; -.
DR   GO; GO:0005524; F:ATP binding; IEA:UniProtKB-KW.
DR   GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-KW.
DR   GO; GO:0004797; F:thymidine kinase activity; IEA:UniProtKB-EC.
DR   GO; GO:0071897; P:DNA biosynthetic process; IEA:UniProtKB-KW.
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; DNA synthesis; Kinase; Metal-binding; Nucleotide-binding;
KW   Transferase; Zinc.
FT   CHAIN         1    177       Thymidine kinase.
FT                                /FTId=PRO_0000174936.
FT   NP_BIND      11     18       ATP. {ECO:0000250}.
FT   REGION      158    162       Substrate binding. {ECO:0000250}.
FT   ACT_SITE     84     84       Proton acceptor. {ECO:0000255}.
FT   METAL       139    139       Zinc. {ECO:0000250}.
FT   METAL       142    142       Zinc. {ECO:0000250}.
FT   METAL       171    171       Zinc. {ECO:0000250}.
FT   METAL       174    174       Zinc. {ECO:0000250}.
FT   BINDING     114    114       Substrate; via amide nitrogen.
FT                                {ECO:0000250}.
SQ   SEQUENCE   177 AA;  20053 MW;  91694E4A1B4CB942 CRC64;
     MSCGFIHLIL GPMFSGKSTE LIRLVNRYQI ATYNCRVIKY SKDNRYGNDA VYTHDKCYIS
     AVSTDSLFDI KDTLDDVDIV GIDEGQFFND IVEFCEYIAN KGKIVIVAAL DGTYERKPFG
     NILNLIPLSE KVTKLNAICM ICHRDASFSK RLSDEKEIEL IGGKEKYLSV CRSCYLT
//
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