O95551: Tyrosyl-DNA phosphodiesterase 2 (TDP2)

Tyrosyl-DNA phosphodiesterase 2 (TDP2) is a 362-residue protein from Homo sapiens. This is its AlphaFold structure prediction, created 1 Aug 2025. UniProt accession: O95551.

Gene
TDP2
Organism
Homo sapiens
Length
362 residues
Mean pLDDT
85.1
Model
AF-O95551-F1 v6
Model created
1 Aug 2025
PDB structures
5

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Model confidence (pLDDT)

The mean pLDDT of this model is 85.1 (confident overall). pLDDT is AlphaFold's per-residue confidence score from 0 to 100. In MolViewer, choose the B-factor color scheme to color the model by pLDDT, because AlphaFold stores it in the B-factor column.

pLDDT bandMeaningShare of residues
Above 90Very high: backbone and side chains are usually accurate71%
70 to 90Confident: backbone generally right10%
50 to 70Low: treat with caution3%
Below 50Very low: often disordered regions17%

What pLDDT means and how to read it

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 (PubMed:27060144, PubMed:27099339). Thereby, protects the transcription of many genes involved in neurological development and maintenance from the abortive activity of TOP2.…

Subunit structure

Interacts with TRAF2, TRAF3, TRAF5, TRAF6, TNFRSF8/CD30, TNFRSF5/CD40, TNFRSF1B/TNF-R75, ETS1, ETS2, FLI1, SMAD3 and ACVR1B/ALK4

Subcellular location

Nucleus, Nucleus, PML body, Nucleus, nucleolus, Cytoplasm

Disease associations

Experimental structures in the PDB

Compare the prediction with experimentally determined structures of the same protein:

PDB IDMethodResolutionChains and residues
6Q00X-ray0.85 ÅB=25-66
6Q01X-ray0.85 ÅC/D=25-66
5J3PX-ray3.1 ÅA/B=113-362
5INOX-ray3.21 ÅA/B=108-362
5J3SX-ray3.4 ÅA=113-362

More AlphaFold highlights

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