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What is a structural protein?

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Quick Answer

Structural proteins are fibrous proteins, and they are the most abundant proteins found in nature. Collagens, fibronectins and laminins are all different types of structural proteins that are used in cell culture applications as attachment factors.

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Full Answer

Other types of structural proteins include keratins, actins and myosins, which are found in muscle tissue and the silks and insect fibers. Keratins form protective coverings for skin, fur, hair, wool, claws, nails, hooves, horns, beaks and feathers. Collagen is found in the tendons and hides of vertebrates. The tendons and hides form connective ligaments inside the body and give extra support to parts of the skin.

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