Tail length and E525K dilated cardiomyopathy mutant alter human β-cardiac myosin super-relaxed state
Sebastian Duno-Miranda,
Shane R. Nelson,
David V. Rasicci
et al.
Abstract:Dilated cardiomyopathy (DCM) is a condition characterized by impaired cardiac function, due to myocardial hypo-contractility, and is associated with point mutations in β-cardiac myosin, the molecular motor that powers cardiac contraction. Myocardial function can be modulated through sequestration of myosin motors into an auto-inhibited “super-relaxed” state (SRX), which may be further stabilized by a structural state known as the “interacting heads motif” (IHM). Here, we sought to determine whether hypo-contra… Show more
JGP study (Duno-Miranda et al. https://doi.org/10.1085/jgp.202313522) shows that a mutation linked to dilated cardiomyopathy stabilizes β-cardiac myosin in its autoinhibited, super-relaxed state.
JGP study (Duno-Miranda et al. https://doi.org/10.1085/jgp.202313522) shows that a mutation linked to dilated cardiomyopathy stabilizes β-cardiac myosin in its autoinhibited, super-relaxed state.
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