MTM1 and centronuclear myopathy: Mutations in MTM1 (Laporte et al, 2000) and MTMR14 lead to inherited forms of centronuclear myopathy (Amoasii et al, 2012), while mutations in MTMR5, MTMR13 (Azzedine et al, 2003), and MTMR2 are associated with a specific subtype of Charcot Marie Tooth disease (i.e., CMT4B), a demyelinating sensory neuropathy.