MYH7 and distal myopathy: Most patients reported with Laing distal myopathy have dominant mutations in MYH7 located in exon 32-36 in the mid region of the MyHC rod including: R1500P, E1508del, L1591P, A1603P, K1617del, A1663P, L1706P and K1729del (Fig. 13) [21, 43, 44, 80].