Elsevier Inc. Rpa complex MRN complex Rbbp8 Brca1 ataxia telangiectasia-mutated (ATM) signaling pathway Rad51paralogs/mediators Rad51 ---- Rad51paralogs/mediators Rad51 Brca1 ---- MRN complex Exo1 Dna2 Blm Brca1 ---- Rbbp8 Rad54b