Figure 1.
MyHC isoform content of muscles from IId null mice determined by high-resolution gel electrophoresis. Myofibrils were prepared from psoas and masseter muscles of wild-type and MyHC-IId null mice (8-wk-old males). Myofibrils were separated by high-resolution gel electrophoresis and silver stained. Lane 1, wild-type psoas (w.t.); lane 2, IId null psoas (IId−/−); lane 3, wild-type masseter (w.t.); lane 4, IId null masseter (IId−/−). The location of MyHC-IIa, -IIb, and -IId bands are indicated.