Official Full Name: exonuclease 1
Also known as: HEX1; hExoI
This gene encodes a protein with 5' to 3' exonuclease activity and RNase H activity. It is similar to the S. cerevisiae protein Exo1 that interacts with Msh2 and is involved in mismatch repair and recombination. Alternative splicing of this gene produces three transcript variants encoding two different isoforms.