MDC1 and proteostasis deficiencies: Uncommon autosomal/X-linked recessive-subtypes identified were: 5 sarcoglycanopathies (LGMD R3–R6; 5%), 3 anoctaminopathies (LGMD R12 anoctamin-related; 3%), 2 myoadenylate-deaminase-deficiency-myopathies (2%), 2 Pompe disease (2%), 2 telethoninopathies (LGMDR7 telethonin-related; 2%), 1 X-linked Emery-Dreifuss-muscular-dystrophy (EDMD1 emerin-related; 1%), 1 Merosin-deficiency-congenital-muscular-dystrophy-type 1 (MDC1 or LGMDR23 laminin α2-related; 1%), 1 POMT1-proteinopathy (LGMDR11 POMT1-related; 1%).