BRAINCAKEKeratin
Keratin is fibrous protein in hair, scales, nails, feathers, horns, claws, hooves, and the outer layer of skin among vertebrates.
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Key terms in this lesson
- disulfide bridge
- A covalent bond formed between two cysteine residues that helps stabilise the tertiary or quaternary structure of a protein.
- fibrous protein
- An insoluble, structural protein made of long, parallel polypeptide chains, such as collagen or keratin.
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