Nature Communications (Aug 2021)

Small tandem DNA duplications result from CST-guided Pol α-primase action at DNA break termini

  • Joost Schimmel,
  • Núria Muñoz-Subirana,
  • Hanneke Kool,
  • Robin van Schendel,
  • Marcel Tijsterman

DOI
https://doi.org/10.1038/s41467-021-25154-w
Journal volume & issue
Vol. 12, no. 1
pp. 1 – 11

Abstract

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Error-prone repair of DNA double-strand breaks have been implied to cause cancer-associated genome alterations, but the mechanism of their formation remains unclear. Here the authors find that DNA polymerase α primase plays part in tandem duplication formation at CRISPR/Cas9-induced complementary 3′ ssDNA protrusions.