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Protein

Thymidine kinase

Gene

tdk

Organism
Rhodothermus sp. (strain ITI 518)
Status
Reviewed-Annotation score: Annotation score: 3 out of 5-Protein inferred from homologyi

Functioni

Catalytic activityi

ATP + thymidine = ADP + thymidine 5'-phosphate.UniRule annotation

Sites

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Active sitei95 – 951Proton acceptorUniRule annotation
Metal bindingi151 – 1511ZincUniRule annotation
Metal bindingi154 – 1541ZincUniRule annotation
Metal bindingi183 – 1831ZincUniRule annotation
Metal bindingi186 – 1861ZincUniRule annotation

Regions

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Nucleotide bindingi22 – 298ATPUniRule annotation
Nucleotide bindingi94 – 974ATPUniRule annotation

GO - Molecular functioni

  1. ATP binding Source: UniProtKB-HAMAP
  2. thymidine kinase activity Source: UniProtKB-HAMAP
  3. zinc ion binding Source: UniProtKB-HAMAP

GO - Biological processi

  1. DNA biosynthetic process Source: UniProtKB-KW
Complete GO annotation...

Keywords - Molecular functioni

Kinase, Transferase

Keywords - Biological processi

DNA synthesis

Keywords - Ligandi

ATP-binding, Metal-binding, Nucleotide-binding, Zinc

Names & Taxonomyi

Protein namesi
Recommended name:
Thymidine kinaseUniRule annotation (EC:2.7.1.21UniRule annotation)
Gene namesi
Name:tdkUniRule annotation
OrganismiRhodothermus sp. (strain ITI 518)
Taxonomic identifieri71277 [NCBI]
Taxonomic lineageiBacteriaBacteroidetesBacteroidetes Order II. Incertae sedisRhodothermaceaeRhodothermus

Subcellular locationi

Cytoplasm UniRule annotation

GO - Cellular componenti

  1. cytoplasm Source: UniProtKB-SubCell
Complete GO annotation...

Keywords - Cellular componenti

Cytoplasm

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Chaini1 – 213213Thymidine kinasePRO_0000175010Add
BLAST

Interactioni

Subunit structurei

Homotetramer.UniRule annotation

Structurei

3D structure databases

ProteinModelPortaliQ9ZIG2.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Sequence similaritiesi

Belongs to the thymidine kinase family.UniRule annotation

Family and domain databases

HAMAPiMF_00124. Thymidine_kinase.
InterProiIPR027417. P-loop_NTPase.
IPR001267. Thymidine_kinase.
IPR020633. Thymidine_kinase_CS.
IPR020634. Thymidine_kinase_subgr.
[Graphical view]
PANTHERiPTHR11441. PTHR11441. 1 hit.
PfamiPF00265. TK. 1 hit.
[Graphical view]
PIRSFiPIRSF035805. TK_cell. 1 hit.
SUPFAMiSSF52540. SSF52540. 1 hit.
PROSITEiPS00603. TK_CELLULAR_TYPE. 1 hit.
[Graphical view]

Sequencei

Sequence statusi: Complete.

Q9ZIG2-1 [UniParc]FASTAAdd to Basket

« Hide

        10         20         30         40         50
MPMEPLILRH GGSVGWIEVI CGSMFSGKTE ELIRRLRRAQ IARQRVEVFK
60 70 80 90 100
PRMDRRYSET DVVSHDENAL RSTPVDSAEQ ILLLADSADV VGIDEAQFFD
110 120 130 140 150
MTLVDVCQQL ANDGKRVIVA GLDQEYMGRP LEPMPQFMAV AEYVTKLHAI
160 170 180 190 200
CAVCGAPANH SQRLTDEEGR VVLGAADRYE PRCRRCFQPP RPTSTSSLKA
210
PAPAATAPRP ELP
Length:213
Mass (Da):23,644
Last modified:May 1, 1999 - v1
Checksum:iA086F049ED6BD786
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AF028720 Genomic DNA. Translation: AAC98909.1.
PIRiT47123.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AF028720 Genomic DNA. Translation: AAC98909.1.
PIRiT47123.

3D structure databases

ProteinModelPortaliQ9ZIG2.
ModBaseiSearch...
MobiDBiSearch...

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Family and domain databases

HAMAPiMF_00124. Thymidine_kinase.
InterProiIPR027417. P-loop_NTPase.
IPR001267. Thymidine_kinase.
IPR020633. Thymidine_kinase_CS.
IPR020634. Thymidine_kinase_subgr.
[Graphical view]
PANTHERiPTHR11441. PTHR11441. 1 hit.
PfamiPF00265. TK. 1 hit.
[Graphical view]
PIRSFiPIRSF035805. TK_cell. 1 hit.
SUPFAMiSSF52540. SSF52540. 1 hit.
PROSITEiPS00603. TK_CELLULAR_TYPE. 1 hit.
[Graphical view]
ProtoNetiSearch...

Publicationsi

  1. "Nucleotide sequence and deduced amino acid sequence of thymidine kinase gene (tdk) from Rhodothermus sp. ITI 518."
    Blondal T., Thorbjarnardottir S.H., Kielezawa J., Eggertsson G.
    Submitted (OCT-1997) to the EMBL/GenBank/DDBJ databases
    Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA].

Entry informationi

Entry nameiKITH_RHOSI
AccessioniPrimary (citable) accession number: Q9ZIG2
Entry historyi
Integrated into UniProtKB/Swiss-Prot: May 30, 2000
Last sequence update: May 1, 1999
Last modified: January 7, 2015
This is version 57 of the entry and version 1 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program

Miscellaneousi

Documents

  1. SIMILARITY comments
    Index of protein domains and families

External Data

Dasty 3

Similar proteinsi

Links to similar proteins from the UniProt Reference Clusters (UniRef) at 100%, 90% and 50% sequence identity:
100%UniRef100 combines identical sequences and sub-fragments with 11 or more residues from any organism into Uniref entry.
90%UniRef90 is built by clustering UniRef100 sequences that have at least 90% sequence identity to, and 80% overlap with, the longest sequence (a.k.a seed sequence).
50%UniRef50 is built by clustering UniRef90 seed sequences that have at least 50% sequence identity to, and 80% overlap with, the longest sequence in the cluster.