CATH Classification

Domain Context

CATH Clusters

Superfamily Endonuclease/exonuclease/phosphatase
Functional Family

Enzyme Information

3.1.-.-
Acting on ester bonds.
based on mapping to UniProt P27695
4.2.99.18
DNA-(apurinic or apyrimidinic site) lyase.
based on mapping to UniProt P27695
The C-O-P bond 3' to the apurinic or apyrimidinic site in DNA is broken by a beta-elimination reaction, leaving a 3'-terminal unsaturated sugar and a product with a terminal 5'-phosphate.
-!- 'Nicking' of the phosphodiester bond is due to a lyase-type reaction, not hydrolysis. -!- This group of enzymes was previously listed as endonucleases, under the number EC 3.1.25.2.

UniProtKB Entries (1)

P27695
APEX1_HUMAN
Homo sapiens
DNA-(apurinic or apyrimidinic site) lyase

PDB Structure

PDB 6MKM
External Links
Method X-RAY DIFFRACTION
Organism
Primary Citation
Discovery of Macrocyclic Inhibitors of Apurinic/Apyrimidinic Endonuclease 1.
Trilles, R., Beglov, D., Chen, Q., He, H., Wireman, R., Reed, A., Chennamadhavuni, S., Panek, J.S., Brown, L.E., Vajda, S., Porco Jr., J.A., Kelley, M.R., Georgiadis, M.M.
J. Med. Chem.
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