Abstract
Cardiac myosin binding protein C is the object of analysis presented in this paper. The fuzzy oil drop model was applied to analyze the status of the hydrophobic core in two forms of this protein: WT and R502W mutant. The status of the mutant is revealed to be of lower stability than the WT form. The high order of the hydrophobic core is interpreted as the factor of stability of the tertiary structure. The muscle proteins, which undergo significant structural changes as the consequence of external stretching forces, are expected to return to initial structures after the release of an external force. The mutant R502W appears to represent lower stability; thus, the return to the initial structure may be of lower probability. The comparable analysis to other muscle domains (titin) and immunoglobulin domains suggests the very subtle relation to the biological activity of these proteins.
Author contributions: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.
Research funding: This work was financially supported by Jagiellonian University Medical College grant system K/ZDS/006363.
Employment or leadership: None declared.
Honorarium: None declared.
Competing interests: The funding organization(s) played no role in the study design; in the collection, analysis, and interpretation of data; in the writing of the report; or in the decision to submit the report for publication.
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