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Wool is made of the protein keratin. Amino acids are the building blocks (monomers) of proteins. Keratins are composed of amino acids, primarily the amino acids glycine and alanine. Given the wide variety of keratins, both alpha and beta, no single chemical composition or monomer can be defined. There are over 20 different amino acids that make up keratins. Cysteine can account for up to 24% of the keratin structure.

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9y ago

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