Reports

Mammoth Hair: Stability of α-Keratin Structure and Constituent Proteins

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Science  04 Dec 1970:
Vol. 170, Issue 3962, pp. 1100-1102
DOI: 10.1126/science.170.3962.1100

Abstract

Hair from a woolly mammoth (Mammuthus primigenius, age about 32,000 years) retains the ordered structure characteristic of α-keratins, but the proteins of this hair differ in composition from and are smaller than similar proteins isolated from other keratins, for example, elephant hair. It is suggested that these changes have been caused by limited proteolysis.