Cardiac myosin binding protein C: its role in physiology and disease.
Myosin binding protein-C (MyBP-C) is a thick filament-associated protein localized to the crossbridge-containing C zones of striated muscle sarcomeres. The cardiac isoform is composed of eight immunoglobulin I-like domains and three fibronectin 3-like domains and is known to be a physiological substrate of cAMP-dependent protein kinase. MyBP-C contributes to thick filament structure via interactions at its C-terminus with the light meromyosin section of the myosin rod and with titin. The prot...Expand abstract
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