TDP2 — Tyrosyl-DNA phosphodiesterase 2
TDP2 belongs to a gene co-expression module in 2 of 28 SCUBA cell types. Each module groups genes that rise and fall together in that cell type; the genes it shares a module with are its closest co-expression partners there.
TDP2's module in each cell type
| Cell type | Module | Shares the module with | |
|---|---|---|---|
| Enterocytes | Microvillus actin cytoskeleton Cytoskeletal | CYB5A, HSD17B11, PRXL2A, SCIN, SMPD3, VIL1 | View in SCUBA |
| Macrophages | Inflammatory Monocyte Activation Inflammatory | ANPEP, AQP9, CD300E, CD82, CLEC5A, CXXC5, DDX60L, DHRS9 +25 more | View in SCUBA |
About the gene
| Synonyms | TTRAP |
|---|---|
| Chromosome | 6: 24649979-24666930 |
| Predicted location | Intracellular |
| Essential gene | No |
| Protein class | Disease related genes, Human disease related genes, Predicted intracellular proteins |
| Molecular function | Hydrolase, Nuclease |
| Biological process | DNA damage, DNA repair, Host-virus interaction |
Function
DNA repair enzyme that can remove a variety of covalent adducts from DNA through hydrolysis of a 5'-phosphodiester bond, giving rise to DNA with a free 5' phosphate. Catalyzes the hydrolysis of dead- end complexes between DNA and the topoisomerase 2 (TOP2) active site tyrosine residue. The 5'-tyrosyl DNA phosphodiesterase activity can enable the repair of TOP2-induced DNA double-strand breaks/DSBs without the need for nuclease activity, creating a 'clean' DSB with 5'- phosphate termini that are ready for ligation. Thereby, protects the transcription of many genes involved in neurological development and maintenance from the abortive activity of TOP2. Hydrolyzes 5'-phosphoglycolates on protruding 5' ends on DSBs due to DNA damage by radiation and free radicals. Has preference for single-stranded DNA or duplex DNA with a 4 base pair overhang as substrate. Acts as a regulator of ribosome biogenesis following stress. Also has 3'-tyrosyl DNA phosphodiesterase activity, but less efficiently and much slower than TDP1. Constitutes the major if not only 5'-tyrosyl-DNA phosphodiesterase in cells. Also acts as an adapter by participating in the specific activation of MAP3K7/TAK1 in response to TGF-beta: associates with components of the TGF-beta receptor-TRAF6-TAK1 signaling module and promotes their ubiquitination dependent complex formation. Involved in non-canonical TGF-beta induced signaling routes. May also act as a negative regulator of ETS1 and may inhibit NF-kappa-B activation. (Microbial infection) Used by picornaviruses to remove the small polypeptide, VPg (virus Protein genome-linked, the primer for viral RNA synthesis), from the genomic RNA of the virus. Acts as a 5'- tyrosyl RNA phosphodiesterase and cleaves the covalent VPg-Tyr-RNA bond. This cleavage would play a role in viral replication and occur in viral replication vesicles, but would not act on viral mRNA
Human Protein Atlas · Open Targets · UniProt
Gene annotation from the Human Protein Atlas and UniProt; see sources & licences.