title: Myosin binding protein-C slow: an intricate subfamily of proteins.
abstract: Myosin binding protein C (MyBP-C) consists of a family of thick filament associated proteins. Three isoforms of MyBP-C exist in striated muscles: cardiac, slow skeletal, and fast skeletal. To date, most studies have focused on the cardiac form, due to its direct involvement in the development of hypertrophic cardiomyopathy. Here we focus on the slow skeletal form, discuss past and current literature, and present evidence to support that: (i) MyBP-C slow comprises a subfamily of four proteins, resulting from complex alternative shuffling of the single MyBP-C slow gene, (ii) the four MyBP-C slow isoforms are expressed in variable amounts in different skeletal muscles, (iii) at least one MyBP-C slow isoform is preferentially found at the periphery of M-bands and (iv) the MyBP-C slow subfamily may play important roles in the assembly and stabilization of sarcomeric M- and A-bands and regulate the contractile properties of the actomyosin filaments.
authors.affiliation: Department of Biochemistry and Molecular Biology, School of Medicine, University of Maryland, Baltimore, MD 21201, USA.
authors.forename: Maegen A
authors.initials: MA
authors.lastname: Ackermann
authors.forename: Aikaterini
authors.initials: A
authors.lastname: Kontrogianni-Konstantopoulos
mesh_terms: D000818:Animals; D002352:Carrier Proteins / Q000737:chemistry* / Q000502:physiology*; D006801:Humans; D020033:Protein Isoforms; D000099163:Myosin Binding Protein C
chemical_list: D002352:Carrier Proteins; D020033:Protein Isoforms; D000099163:Myosin Binding Protein C
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