What are contractile proteins? Explain its arrangement in rough muscles.
Answers
Answer:
Contractile proteins are proteins that mediate sliding of contractile fibres (contraction) of a cell's cytoskeleton, and of cardiac and skeletal muscle.
Skeletal muscle is composed of muscle fibers which have smaller units called myofibrils. There are three types of proteins that make up each myofibril; they are contractile, regulatory and structural proteins. By contractile proteins, we mean actin (thin filament) and myosin (thick filament).
Extra information
examples of contractile proteins
Actins
Contractile Proteins.
Tropomyosin.
Troponin.
Actinin.
Spectrin. Myosins.
Answer:
By contractile proteins, we mean actin (thin filament) and myosin (thick filament). ... Along with the 'F' actin, two filaments of regulatory proteins tropomyosin and troponin at regular intervals are present. During muscle relaxation, troponin covers the binding sites for myosin on actin filaments.