RAD54 N-terminal domain is a DNA sensor that couples ATP hydrolysis with branch migration of Holliday junctions

Abstract

RAD54 stimulates activity of the RAD51 recombinase and catalyzes branch migration of Holliday junctions during DNA repair and recombination. Here the authors show that the N-terminal domain of RAD54 mediates RAD54 oligomerization to promote branch migration, and is the target of phosphorylation that inhibits oligomerization and branch migration but not RAD51 stimulation.