A myosin hypertrophic cardiomyopathy mutation disrupts the super-relaxed state and boosts contractility by enhanced actin attachment
Robert C. Cail, Bipasha Barua, Faviolla A. Báez-Cruz…·E. Michael Ostap
This paper investigates the HCM mutation M493I in β-cardiac myosin, showing it disrupts the super-relaxed state, slows ADP release, and enhances actin attachment and force production, leading to hypercontractility.