MFN2 and neuropathy: Mutations in MFN2 relate to the genetic basis of the CMT2A phenotype and account for 14%–29% of neuropathy patients depending on ethnicity (Bergamin et al., 2014; Calvo et al., 2009; Casasnovas et al., 2010; Kijima et al., 2005; Lin et al., 2011; Szigeti et al., 2006; Züchner et al., 2004).