What are the subunits of keratin??

Expert Answers
jerichorayel eNotes educator| Certified Educator

Keratin is a type of fibrous protein which is found is our skin that serves as outer layer. It also found as a structural component of our hair and nails. There are two classifications of keratins, the `alpha` -keratins and the `beta` -keratins. Although they differ slightly in structure, composition and properties, they have relatively similar function. 

Since it is a protein, its subunits are amino acids. Keratin is mostly composed of alanine and glycine. They also contain cysteine which is used to add strength due to the formation of disulfide bridges. 

Access hundreds of thousands of answers with a free trial.

Start Free Trial
Ask a Question