FIG4 and neuropathy: Eighty-seven previously unpublished predicted pathogenic mutations were identified in the MPZ (18), SH3TC2 (14), GJB1 (12), GDAP1 (9), FIG4 (7), PMP22 (7), PRX (7), MFN2 (6), GARS (3), HSPB1 (2), and NEFL (2) genes clearly documenting the contributions of rare variants to neuropathy.