Abstract
Two cortical cell fractions separated from wool after treatment at 30° C. with 6 N HCl for 50 hr. have been analyzed for their amino acid composition. The heavy fraction was significantly richer than the light fraction in amide nitrogen, cystine, serine, and proline, but was deficient in alanine, glutamic acid, glycine, leucine, lysine, phenylalanine, and tyrosine. Both cortical cell fractions were richer than the original wool in cystine, lysine, and proline, while the material dissolved by the acid treatment was richer in glycine, phenylalanine, serine, and tyrosine.
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