EXO1

Overview

EXO1 (Exonuclease 1) is a DNA repair exonuclease involved in mismatch repair (MMR), homologous recombination, and DNA double-strand break repair. It was identified as a MutSigCV-significant gene in pancreatic ductal adenocarcinoma, though its functional role awaits validation.

Alterations observed in the corpus

  • MutSigCV-significant gene in pancreatic ductal adenocarcinoma (PDAC); functional role in PDA biology remains to be validated PMID:25855536

Cancer types (linked)

  • PAAD: Identified among novel MutSigCV-significant genes not previously highlighted in PDAC genomics PMID:25855536

Co-occurrence and mutual exclusivity

Therapeutic relevance

  • No direct therapeutic targeting reported in the corpus; DNA repair role may inform sensitivity to genotoxic agents.

Open questions

  • Whether EXO1 mutations in PDAC confer DNA repair deficiency or microsatellite instability relevant to immunotherapy has not been established.

Sources

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