Nature Communications (Aug 2021)
Small tandem DNA duplications result from CST-guided Pol α-primase action at DNA break termini
Abstract
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.