Physarum Myosin Binds Ca2+: Results From Electrophoresis and Equilibrium Dialysis Experiments
We wish to understand the molecular mechanism of calcium-regulated cytoplasmic movements in the Plasmodium of Physarum polycephalum. Early studies demonstrated that the contractile activity of the cytoplasm, presumably an expression of the actomyosin ATPase activity, is influenced by Ca2+ (Hatano, 1970; Matthews, 1977). Recently it has become evident that the state of polymerization and aggregation of the actin filaments may also be Ca2+-regulated (see Chapter 9).
KeywordsEDTA Ethylene Glycol Electrophoresis Polypeptide Caffeine
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