The diagenetic production of -keto acids in heated and fossil Chione shells

Details The diagenetic production of -keto acids in heated and fossil Chione shells The diagenetic production of -keto acids in heated and fossil Chione shells

Aug 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983gecoa..47.1481s&link_type=abstract

Geochimica et Cosmochimica Acta, vol. 47, Issue 8, pp.1481-1486

Physics

1

Scientific paper

Both pyruvic and -ketobutyric acids are formed during heating experiments with modern Chione shells. These -keto acids are also present in fossil specimens. These findings provide additional evidence that the dehydration reaction of free serine and threonine or the -elimination reaction of peptide bound serine and threonine occurred in fossil materials. These experiments suggest that the formation of -keto acids occurs early in protein diagenesis. A large fraction of the -keto acids which were formed have been lost either by subsequent reactions or by diffusion out of the shell matrix.

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