<prompt> All of the following proteins are involved during contraction of muscles, EXCEPT:MyosinActinMyoglobinTroponin  <response>: The contractile mechanism in skeletal muscle largely depends on the proteins, Myosin-II Actin Tropomyosin Troponin Troponin is made up of three subunits: troponin I, troponin T, and troponin C. Ref: Barrett K.E., Barman S.M., Boitano S., Brooks H.L. 2012. Chapter 5. Excitable Tissue: Muscle. In K.E. Barrett, S.M. Barman, S. Boitano, H.L. Brooks Eds, Ganongs Review of Medical Physiology, 24e. 