The Helix Twist: Damage and Repair Follows the DNA Minor Groove.

Kotler, Eran; Segal, Eran · Cell · 2018

basic_science · Level V

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Abstract

Mutation frequencies vary along the genome, but the factors determining this variability are only partially understood. Pich et al. unravel a ∼10 bp periodicity in mutation rates at nucleosome-proximal regions that follows minor groove orientation. Opposing differential DNA damage and repair processes could shape genetic divergence irrespective of selection.

Medical subject headings