January 19, 2010

Structural Proteins

Structural Proteins
Structural proteins are very important for support. Collagen and elastin provide a fibrous framework in animal connective tissues, such as tendons and ligaments.

Keratin is the protein of hair, horns, feathers, quills, and other skin appendages of animals.

What is collagen? Collagen is the main protein of connective tissue in animals and the most abundant protein in mammals, making up about 40% of the total.

It is one of the long, fibrous structural proteins whose functions are quite different from those of globular proteins such as enzymes. It is tough with great tensile strength. It is the main component of cartilage, ligaments, tendons, bone and teeth.

Along with soft keratin, it is responsible for skin strength and elasticity, and its degradation leads to wrinkles that accompany aging.

It strengthens blood vessels and plays a role in tissue development. It is present in the cornea and lens of the eye in crystalline form.
Structural Proteins
at 4:24 AM

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