Myofibrillar myopathy-associated KY protein promotes muscle fibre size rescue independent of its predicted catalytic triad.
Mutations in the Ky gene are the underlying cause of Myofibrillar Myopathy-7 (MFM-7), a rare progressive muscle weakness disease of childhood onset. A defining characteristic of the KY protein is the presence of a conserved transglutaminase-like domain, but unequivocal evidence of its enzymatic function remains to be e...