Key result
Missense mutations in the central domains of cMyBP-C resulted in mutation-specific phenotypes affecting protein stability and interactions, explaining their role in hypertrophic cardiomyopathy.
Why the study?
Hypertrophic cardiomyopathy-associated missense mutations cluster in the central domains of cMyBP-C, suggesting these domains have an active functional role.
Population
Isolated cMyBP-C protein and cardiomyocytes in vitro
Comparison
Four cMyBP-C missense mutations (E542Q, G596R, N755K, R820Q)
Design
In vitro preclinical study
Authors
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Mutation-specific cMyBP-C defects may guide future HCM models; animal data leave clinical translation open.
Missense mutations in the central domains of cMyBP-C cause mutation-specific molecular defects that explain their contribution to the development of hypertrophic cardiomyopathy.
Pearce et al. (2023) studied Hypertrophic cardiomyopathy. Missense mutations in cMyBP-C (E542Q, G596R, N755K, R820Q) was evaluated on Domain stability, interaction with thin filaments, binding to myosin, and subcellular localization behavior. Missense mutations in the central domains of cMyBP-C resulted in mutation-specific phenotypes affecting protein stability and interactions, explaining their role in hypertrophic cardiomyopathy.
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