The amino acid composition of bone and tooth proteins in late Pleistocene mammals.
- 1 July 1965
- journal article
- research article
- Published by Proceedings of the National Academy of Sciences in Proceedings of the National Academy of Sciences
- Vol. 54 (1) , 26-31
- https://doi.org/10.1073/pnas.54.1.26
Abstract
Four samples of the bones and 3 samples of the teeth of the Late Pleistocene mammals from the deposits in the Rancho La Brea tar pits were analyzed for the amino acid composition of their proteins, using Recent bone and tooth as controls. The total amount of the amino acids in the proteins of the fossils ranges from about 1/6 to 4/5 that of the Recent bone, and 1/16 to 2/3 that of the Recent tooth. The amino acid composition of fossil samples is similar to that of the Recent bone and tooth with the exception of the rather high percentage of glycine in the fossil samples. In addition to the collagen, which is a predominant constituent of the proteins in the fossil bones and teeth, the presence of mucoprotein and glycine-rich polypeptides in the fossil specimens was suggested.This publication has 6 references indexed in Scilit:
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