TK1 - thymidine kinase 1 Gene
Also Known as TK2
Species: Homo sapiens
About TK1
This gene has 6 transcripts (splice variants) and 209 orthologues. Broad expression in bone marrow (RPKM 21.7), lymph node (RPKM 12.6) and 18 other tissues.
Summary
The protein encoded by this gene is a cytosolic enzyme that catalyzes the addition of a gamma-phosphate group to thymidine. This creates dTMP and is the first step in the biosynthesis of dTTP, which is one component required for DNA replication. The encoded protein, whose levels fluctuate depending on the cell cycle stage, can act as a low activity dimer or a high activity tetramer. High levels of this protein have been used as a biomarker for diagnosing and categorizing many types of cancers. [provided by RefSeq, Oct 2016]
TK1 Products (3)
| mRNA | Protein | Name |
|---|---|---|
| NM_001346663.2 | NP_001333592.1 | thymidine kinase, cytosolic isoform 2 |
| NM_001363848.1 | NP_001350777.1 | thymidine kinase, cytosolic isoform 3 |
| NM_003258.5 | NP_003249.3 | thymidine kinase, cytosolic isoform 1 |
| Molecular Function GO Annotation | Evidence | References | Source |
|---|---|---|---|
| enables identical protein binding |
IPI
IPI: Inferred from physical interaction
|
21900206 | GOA |
| enables protein binding |
IPI
IPI: Inferred from physical interaction
|
25416956 | GOA |
| enables thymidine kinase activity |
IDA
IDA: Inferred from direct assay
|
14697231 | GOA |
| enables zinc ion binding |
IDA
IDA: Inferred from direct assay
|
17407781 | GOA |
| Biological Process GO Annotation | Evidence | References | Source |
|---|---|---|---|
| involved in DNA synthesis involved in mitotic DNA replication |
IDA
IDA: Inferred from direct assay
|
14697231 | GOA |
| involved in protein homotetramerization |
IDA
IDA: Inferred from direct assay
|
14697231 | GOA |
| involved in protein homotetramerization |
IPI
IPI: Inferred from physical interaction
|
17407781 | GOA |
| involved in thymidine biosynthetic process |
IDA
IDA: Inferred from direct assay
|
14697231 | GOA |
| involved in thymidine metabolic process |
IDA
IDA: Inferred from direct assay
|
22385435 | GOA |
TK1 Protein Structure
TK: Thymidine kinase (19 - 189)
- 0
- 100
- 200
- 234 a.a.
| Protein Preferred Names | Protein Names | |
|---|---|---|
|
thymidine kinase, cytosolic |
|
TK1 Protein-protein interaction Information
|
Type
|
Protein Name | Protein ID | Interactor | Interactor Species | Interactor ID | Detection Method | References |
|---|---|---|---|---|---|---|---|
|
Intra
|
TK1 | P04183 | MAGEA4 | Homo sapiens | Q1RN33 | 25416956 | |
|
Intra
|
TK1 | P04183 | KAT5 | Homo sapiens | Q92993 | 32814053 | |
|
Intra
|
TK1 | P04183 | KAT5 | Homo sapiens | Q92993 | 32814053 | |
|
Intra
|
TK1 | P04183 | KAT5 | Homo sapiens | Q92993 | 32814053 | |
|
Intra
|
TK1 | P04183 | TK1 | Homo sapiens | P04183 | 22385435 | |
|
Intra
|
TK1 | P04183 | APLP1 | Homo sapiens | P51693 | 21900206 | |
|
Intra
|
TK1 | P04183 | APP | Homo sapiens | P05067 | 32814053 | |
|
Intra
|
TK1 | P04183 | COPS6 | Homo sapiens | Q7L5N1 | 16169070 | |
|
Intra
|
TK1 | P04183 | APLP1 | Homo sapiens | P51693 | 16169070 | |
|
Intra
|
TK1 | P04183 | APP | Homo sapiens | P05067 | 32814053 | |
|
Intra
|
TK1 | P04183 | CCDC90B | Homo sapiens | Q9GZT6 | 16169070 | |
|
Intra
|
TK1 | P04183 | APP | Homo sapiens | P05067 | 32814053 | |
|
Intra
|
TK1 | P04183 | CRMP1 | Homo sapiens | Q14194 | 16169070 | |
|
Intra
|
TK1 | P04183 | COPS6 | Homo sapiens | Q7L5N1 | 21900206 | |
|
Intra
|
TK1 | P04183 | TK1 | Homo sapiens | P04183 | 21900206 |
Recombinant TK1 Proteins
| Cat. No. | Product Name | Accession | Purity |
|---|---|---|---|
| HY-P71074 | Thymidine kinase 1/TK1 Protein, Human (HEK293, His) | P04183 (M1-N234) | ≥ 95%, as determined by reducing SDS-PAGE. |
TK1 Antibodies
| Cat. No. | Product Name | Application | Reactivity |
|---|---|---|---|
| HY-P82450 | Thymidine Kinase Antibody (YA2195) | WB, IP | Human |
| HY-P82450A | Thymidine Kinase Antibody (YA2195)(PBS only) | WB, IP | Human |
Related Diseases
| Diseases | Alias | |
|---|---|---|
| Hypochondroplasia |
|
|
| Thanatophoric Dysplasia, Type I |
|
|
| Achondroplasia |
|
|
| Lung Cancer |
|
|
| Mitochondrial Dna Depletion Syndrome 2 |
|
|
| Pfeiffer Syndrome |
|
|
| Mitochondrial Dna Depletion Syndrome |
|
|
| Leukemia, Chronic Lymphocytic |
|
|
| Brain Cancer |
|
|
| Breast Cancer |
|
|
Orthologs Information
| Species | Symbol | Source | ID |
|---|---|---|---|
| Mus musculus | TK1 | MGD | MGI:98763 |
| Canis familiaris | TK1 | VGNC | VGNC:47389 |
| Rattus norvegicus | TK1 | RGD | RGD:621014 |
| Macaca mulatta | TK1 | VGNC | VGNC:78361 |
| Felis catus | TK1 | VGNC | VGNC:66201 |
| Bos taurus | TK1 | VGNC | VGNC:35884 |
| Others | TK1 | NCBI |