Yuichi Kokabu, Yasuto Murayama, Naoyuki Kuwabara, Tomotaka Oroguchi, Hiroshi Hashimoto, Yasuhiro Tsutsui, Naohito Nozaki, Satoko Akashi, Satoru Unzai, Toshiyuki Shimizu, Hiroshi Iwasaki, Mamoru Sato, Mitsunori Ikeguchi
In eukaryotes, DNA strand exchange is the central reaction of homologous recombination, which is promoted by Rad51 recombinases forming a right-handed nucleoprotein filament on single-stranded DNA, also known as a presynaptic filament. Accessory proteins known as recombination mediators are required for the formation of the active presynaptic filament. One such mediator in the fission yeast Schizosaccharomyces pombe is the Swi5-Sfr1 complex, which has been identified as an activator of Rad51 that assists in presynaptic filament formation and stimulates its strand exchange reaction...
December 16, 2011: Journal of Biological Chemistry