Molecular snapshots of APE1 proofreading mismatches and removing DNA damage.
Whitaker, A.M., Flynn, T.S., Freudenthal, B.D.(2018) Nat Commun 9: 399-399
- PubMed: 29374164 
- DOI: 10.1038/s41467-017-02175-y
- Primary Citation of Related Structures:  
5WN0, 5WN1, 5WN2, 5WN3, 5WN4, 5WN5 - PubMed Abstract: 
Human apurinic/apyrimidinic (AP) endonuclease 1 (APE1) is an essential DNA repair enzyme which uses a single active site to process DNA damage via two distinct activities: (1) AP-endonuclease and (2) 3' to 5' exonuclease. The AP-endonuclease activity cleaves at AP-sites, while the exonuclease activity excises bulkier 3' mismatches and DNA damage to generate clean DNA ends suitable for downstream repair ...