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fibrous protein

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Also known as scleroprotein, scleroproteins

constitutes one of the three main types of proteins (alongside globular and membrane proteins). There are many scleroprotein superfamilies including keratin, collagen, elastin, and fibroin

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Subclass of
protein
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Encyclopedic overview

Tropocollagen triple helix

In molecular biology, fibrous proteins or scleroproteins are one of the three main classifications of protein structure (alongside globular and membrane proteins). Fibrous proteins are made up of elongated or fibrous polypeptide chains which form filamentous and sheet-like structures. This kind of protein can be distinguished from globular protein by its low solubility in water. In contrast, globular proteins are spherical and generally soluble in water, performing dynamic functions like enzymatic activity or transport. Such proteins serve protective and structural roles by forming connective tissue, tendons, bone matrices, and muscle fiber.

Excerpted from Wikipedia’s “fibrous protein” article, available under the CC BY-SA 4.0 licence.