The binding of phosphorylated heavy meromyosin to regulated F-actin in ghost fibers at high Ca2+ concentration increases, and at low Ca2+ concentration decreases, the anisotropy of intrinsic tryptophan fluorescence of F-actin. The effect is opposite to the effect of the binding of dephosphorylated heavy meromyosin.
- ghost muscle fiber
- Phosphorylated heavy meromyosin
- regulated F-actin
ASJC Scopus subject areas
- Biochemistry, Genetics and Molecular Biology(all)