PALB2 and Friedreich ataxia: BRCA2 acts as a platform to form multimeric structures–it not only directly binds to RAD51 but also to Partners with Localizer of BRCA2 (PALB2/FANCN) (Sy et al., 2009; Zhang et al., 2009) and Fanconi Anemia (FA) Complementation Group D2 (FANCD2) (Hussain et al., 2004).