Major protein of connective tissue is
Collagen is the major fibrous structural protein of connective tissue occurring as white fibres produced by fibroblasts. It provides high tensile strength. Collagen fibres are composed of masses of tropocollagen molecules, each a triple helix of collagen monomers. Keratin is the protein that protects epithelial tissues from damage or stress. Melanin is the pigment that gives human skin, hair, and eyes their color. Myosin is found in the muscles.