MYBPC1: Proteins and Enzymes

MYBPC1, also known as Myosin-binding protein C, slow-type, is a protein with 10 isoforms ranging from a 1,120 amino acid isoform that is 126 kDa to a 1,173 amino acid isoform that is 131 kDa, located in the crossbridge region of vertebrate striated muscle a bands, plays an important role in muscle contraction by recruiting muscle-type creatine kinase to myosin filaments and modifies the activity of actin-activated myosin ATPase. Studies are being performed on the relationship of this protein to distal arthrogryposis, urethral intrinsic sphincter deficiency, akinetic mutism, hypertrophic cardiomyopathy, familial hypertrophic cardiomyopathy, dilated cardiomyopathy, dysgraphia, laryngeal squamous cell carcinoma, fg syndrome, atrial fibrillation, squamous cell carcinoma, mutism, muscular dystrophy, urethritis, polymyositis, laryngitis, dermatomyositis, myositis, distal arthrogryposis, and urethral intrinsic sphincter deficiency. MYBPC1 protein involvement has been observed with relation to CALM1, CALM2, CALM3, FHL1, MYBPC2, USP25, TTN, DYSF, ACTN2, and more than 30 other proteins in the muscle contraction and striated muscle contraction pathways.