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Fibrous protein

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Tropocollagen triple helix

A fibrous protein or scleroprotein is one of the three main types of proteins.[1] The others are globular and membrane proteins).[2]

There are many types of scleroprotein, such as keratin, collagen, elastin, and fibroin. Such proteins protect and support. They form connective tissue, tendons, bone matrices, and muscle fibre.