KITH_RHOSI
ID KITH_RHOSI Reviewed; 213 AA.
AC Q9ZIG2;
DT 30-MAY-2000, integrated into UniProtKB/Swiss-Prot.
DT 01-MAY-1999, sequence version 1.
DT 03-AUG-2022, entry version 69.
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};
OS Rhodothermus sp. (strain ITI 518).
OC Bacteria; Bacteroidetes; Bacteroidetes Order II. Incertae sedis;
OC Rhodothermaceae; Rhodothermus; unclassified Rhodothermus.
OX NCBI_TaxID=71277;
RN [1]
RP NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RA Blondal T., Thorbjarnardottir S.H., Kielezawa J., Eggertsson G.;
RT "Nucleotide sequence and deduced amino acid sequence of thymidine kinase
RT gene (tdk) from Rhodothermus sp. ITI 518.";
RL Submitted (OCT-1997) 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: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; AF028720; AAC98909.1; -; Genomic_DNA.
DR PIR; T47123; T47123.
DR AlphaFoldDB; Q9ZIG2; -.
DR SMR; Q9ZIG2; -.
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; 3.40.50.300; -; 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; 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..213
FT /note="Thymidine kinase"
FT /id="PRO_0000175010"
FT REGION 185..213
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT ACT_SITE 95
FT /note="Proton acceptor"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00124"
FT BINDING 22..29
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00124"
FT BINDING 94..97
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00124"
FT BINDING 151
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00124"
FT BINDING 154
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 213 AA; 23644 MW; A086F049ED6BD786 CRC64;
MPMEPLILRH GGSVGWIEVI CGSMFSGKTE ELIRRLRRAQ IARQRVEVFK PRMDRRYSET
DVVSHDENAL RSTPVDSAEQ ILLLADSADV VGIDEAQFFD MTLVDVCQQL ANDGKRVIVA
GLDQEYMGRP LEPMPQFMAV AEYVTKLHAI CAVCGAPANH SQRLTDEEGR VVLGAADRYE
PRCRRCFQPP RPTSTSSLKA PAPAATAPRP ELP
