Actn3 deficiency

Approximately 16% of the world population is predicted to have congenital deficiency of alpha-actinin-3 based on a common nonsense polymorphism in the ACTN3 gene. Expression of alpha-actinin-3 is limited to a subset of type 2 (fast) fibers. No disease phenotype is associated with this deficiency (North et al., 1999).

OMIM