Key result
Kinetic analysis reveals that five different proteins regulate actin polymerization and filament dynamics in Acanthamoeba, often involving very-low-affinity bonds.
May inform cytoskeletal regulation in protozoa; leaves open relevance to human cardiac cell dynamics.
Kinetic analysis has provided a detailed quantitative description of the mechanism of actin polymerization as well as the methods to analyze the mechanisms of action of actin‐binding proteins. In Acanthamoeba, five different proteins regulate the pool of monomers available for polymerization, cap the end of filaments, sever filaments, and cross‐link filaments. Remarkably, many of these interactions involve very‐low‐affinity bonds between the protein molecules.
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Thomas D. Pollard (1986) conducted a review in Actin polymerization in nonmuscle cells. Kinetic analysis reveals that five different proteins regulate actin polymerization and filament dynamics in Acanthamoeba, often involving very-low-affinity bonds.
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