swiss molel of protein myosin This is a structure of human beta myosin S2 fragment. It has a coil structure. It resembles with dimeric coil coil shown in PDB. Reference ((Blankenfeldt, W., Thoma, N.H., Wray, J.S., Gautel, M., Schlichting, I. Crystal structures of human cardiac {beta}-myosin II S2-{Delta} provide insight into the functional role of the S2 subfragment Proc.Natl.Acad.Sci.Usa v103 pp.17713-17717 , 2006)) 2FXM (PDB)