| Literature DB >> 18174420 |
Mike Buckley1, Angela Walker, Simon Y W Ho, Yue Yang, Colin Smith, Peter Ashton, Jane Thomas Oates, Enrico Cappellini, Hannah Koon, Kirsty Penkman, Ben Elsworth, Dave Ashford, Caroline Solazzo, Phillip Andrews, John Strahler, Beth Shapiro, Peggy Ostrom, Hasand Gandhi, Webb Miller, Brian Raney, Maria Ines Zylber, M Thomas P Gilbert, Richard V Prigodich, Michael Ryan, Kenneth F Rijsdijk, Anwar Janoo, Matthew J Collins.
Abstract
We used authentication tests developed for ancient DNA to evaluate claims by Asara et al. (Reports, 13 April 2007, p. 280) of collagen peptide sequences recovered from mastodon and Tyrannosaurus rex fossils. Although the mastodon samples pass these tests, absence of amino acid composition data, lack of evidence for peptide deamidation, and association of alpha1(I) collagen sequences with amphibians rather than birds suggest that T. rex does not.Entities:
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Year: 2008 PMID： 18174420 PMCID： PMC2694913 DOI： 10.1126/science.1147046
Source DB: PubMed Journal: Science ISSN： 0036-8075 Impact factor: 47.728