Definition of Fibrous Proteins

The proteins are classified into two classes based on their structure i.e. fibrous and globular. Fibrous proteins are defined as such proteins which have less compact structure as compared to globular. They are usually long and narrow in shape. They play a lot many structural functions in a cell.


There is a repetitive sequence of amino acids in their structure. They are slightly sensitive to physical changes such as pH, temperature, etc. They are generally insoluble in water and exhibit a secondary level of structure. They are elastic.


Examples of Fibrous Proteins:

Examples of fibrous proteins include collagen, myosin, keratin, fibrin, etc.

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