RT Journal Article T1 The Effect of Atypical Nucleic Acids Structures in DNA Double Strand Break Repair: A Tale of R-loops and G-Quadruplexes. A1 Camarillo, Rosa A1 Jimeno, Sonia A1 Huertas, Pablo K1 DNA double strand break repair K1 DNA end resection K1 G-quadruplex K1 R-loops K1 homologous recombination (HR) AB The fine tuning of the DNA double strand break repair pathway choice relies on different regulatory layers that respond to environmental and local cues. Among them, the presence of non-canonical nucleic acids structures seems to create challenges for the repair of nearby DNA double strand breaks. In this review, we focus on the recently published effects of G-quadruplexes and R-loops on DNA end resection and homologous recombination. Finally, we hypothesized a connection between those two atypical DNA structures in inhibiting the DNA end resection step of HR. SN 1664-8021 YR 2021 FD 2021-10-08 LK https://hdl.handle.net/10668/28366 UL https://hdl.handle.net/10668/28366 LA en DS RISalud RD Apr 6, 2025