No classical type IIB fibres in dog skeletal muscle.

摘要: To analyse the fibre type composition of adult dog skeletal muscle, enzyme histochemistry, immunohistochemistry for I, IIA and IIB myosins, peptide mapping myosin heavy chains isolated from typed single fibres were combined. Subdivision II into two main classes according to activity m-ATPase after acidic alkaline preincubation proved be rather difficult was only consistently achieved a very careful adjustment systems used. One these sub-classes stained more strongly preincubation, oxidative-glycolytic showed strong reaction with an anti-type myosin. The other one, however, although unreactive anti-IIA myosin, also oxidative-glycolytic, faint Peptide revealed populations among group. Thus, in we are confronted presence fibres, both but differing structure their chains. In contrast some reports literature, no classical could detected.