Actin and myosin are the basic proteins involved in contractile machinery of our body to which type of proteins do they belong____________? August 9, 2021May 11, 2018 by admin Actin and myosin are the basic proteins involved in contractile machinery of our body to which type of proteins do they belong____________? A. Globular proteins B. Fibrous Proteins C. Both a and b D. None of these