Demonstrates a novel affinity chromatography method using phalloidin-stabilized F-actin columns for the efficient purification of myosin and its subfragments.
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May streamline myosin research tools; leaves open any clinical translation in cardiovascular contexts.
A method of affinity chromatography based on the trapping of actin filaments within agarose gel beads is described. This method can be used for the purification of myosin and its active proteolytic subfragments, as well as for studies on the interaction between actin and these proteins. Actin columns stabilized by phalloidin bind myosin, heavy meromyosin (HMM), and heavy meromyosin subfragment 1 (HMM-S1) specifically and reversibly. The effect of pyrophosphate and KCl on the dissociation of actomyosin, acto-HMM, or acto-HMM-S1 complex is reported. We also describe the single-step purification of myosin from a crude rabbit psoas muscle extract.
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Grandmont-Leblanc et al. (1977) studied this question.
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