No pathogenic alterations of MRG15 or MORF4L1 have been observed in FA patients unclassified in terms of subtype or in familial BrCa cases negative for mutations in BRCA1 or BRCA2. Finally, no significant association with BrCa risk among BRCA1 and BRCA2 mutation carriers has been revealed for two common genetic variants at the MORF4L1 locus. Here, MORF4L1 is linked to Friedreich ataxia.