40-kDa keratin intermediate filament,CK19,CK-19,cytokeratin 19,Cytokeratin-19,K19,K1CS,keratin 19, type I,keratin, type I cytoskeletal 19,keratin, type I, 40-kd,Keratin-19.
Involved in the organization of myofibers. Together with KRT8, helps to link the contractile apparatus to dystrophin at the costameres of striated muscle.