ID A4A6Q2_9GAMM Unreviewed; 194 AA.
AC A4A6Q2;
DT 03-APR-2007, integrated into UniProtKB/TrEMBL.
DT 19-FEB-2014, sequence version 2.
DT 24-JAN-2024, entry version 77.
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=KT71_01940 {ECO:0000313|EMBL:EAQ98699.2};
OS Congregibacter litoralis KT71.
OC Bacteria; Pseudomonadota; Gammaproteobacteria; Cellvibrionales; Halieaceae;
OC Congregibacter.
OX NCBI_TaxID=314285 {ECO:0000313|EMBL:EAQ98699.2, ECO:0000313|Proteomes:UP000019205};
RN [1] {ECO:0000313|EMBL:EAQ98699.2, ECO:0000313|Proteomes:UP000019205}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=KT71 {ECO:0000313|EMBL:EAQ98699.2,
RC ECO:0000313|Proteomes:UP000019205};
RX PubMed=17299055; DOI=10.1073/pnas.0608046104;
RA Fuchs B.M., Spring S., Teeling H., Quast C., Wulf J., Schattenhofer M.,
RA Yan S., Ferriera S., Johnson J., Glockner F.O., Amann R.;
RT "Characterization of a marine gammaproteobacterium capable of aerobic
RT anoxygenic photosynthesis.";
RL Proc. Natl. Acad. Sci. U.S.A. 104:2891-2896(2007).
RN [2] {ECO:0000313|EMBL:EAQ98699.2, ECO:0000313|Proteomes:UP000019205}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=KT71 {ECO:0000313|EMBL:EAQ98699.2,
RC ECO:0000313|Proteomes:UP000019205};
RX PubMed=19287491; DOI=10.1371/journal.pone.0004866;
RA Spring S., Lunsdorf H., Fuchs B.M., Tindall B.J.;
RT "The photosynthetic apparatus and its regulation in the aerobic
RT gammaproteobacterium Congregibacter litoralis gen. nov., sp. nov.";
RL PLoS ONE 4:E4866-E4866(2009).
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 -!- CAUTION: The sequence shown here is derived from an EMBL/GenBank/DDBJ
CC whole genome shotgun (WGS) entry which is preliminary data.
CC {ECO:0000313|EMBL:EAQ98699.2}.
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DR EMBL; AAOA02000002; EAQ98699.2; -; Genomic_DNA.
DR RefSeq; WP_023659921.1; NZ_CM002299.1.
DR AlphaFoldDB; A4A6Q2; -.
DR STRING; 314285.KT71_01940; -.
DR eggNOG; COG1435; Bacteria.
DR HOGENOM; CLU_064400_2_1_6; -.
DR OrthoDB; 9781579at2; -.
DR Proteomes; UP000019205; 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}; Reference proteome {ECO:0000313|Proteomes:UP000019205};
KW Transferase {ECO:0000256|ARBA:ARBA00022679, ECO:0000256|HAMAP-
KW Rule:MF_00124}; Zinc {ECO:0000256|HAMAP-Rule:MF_00124}.
FT ACT_SITE 88
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 87..90
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00124"
FT BINDING 145
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00124"
FT BINDING 147
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00124"
FT BINDING 182
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00124"
FT BINDING 185
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00124"
SQ SEQUENCE 194 AA; 21572 MW; 0F48C9E28FC8DE49 CRC64;
MAKLYFHYSS MNAGKSTTLL QSSYNYVERG MRTLIMAPAL DDRFGSGRVT SRIGIGADAF
IFDREADVFA IVAEKHHAES LDCVLIDEAQ FLTKEQVFAL GKVCDELKIP VLAYGLRTDF
RGEPFEGSKY LLAWADNLKE IKTICHCGKK ATMVVRQDAD GTTVTAGAQV EIGGNDRYVS
LCRRHFNASF HKTT
//
