current modelshave trouble predicting the behavior of fully contracted sarcomeres. Those models have assumed myosin does not enter the Z-disc on its walk along actin. There have been some hints that maybe it keeps going. "But we didn
Prestained molecular weight markers were placed in adjacent lanes on each side of the lane containing the extract (203 kDa, myosin; 116 kDa, β-galactosidase, and 83 kDa, bovine serum albumin; Bio-Rad, broad range). (The location of the prestained marker proteins in the respective figures ...