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American Association for the Advancement of Science, Science, 5892(321), p. 1040-1040, 2008

DOI: 10.1126/science.1155006

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Comment on "Protein sequences from mastodon and Tyrannosaurus rex revealed by mass spectrometry".

Journal article published in 2008 by Angela Walker, Jane Thomas Oates, Mike Walker A. Ho S. Y. Yang Y. Smith C. Ashton P. Thomas-Oates J. Cappellini E. Koon H. Penkman K. Elsworth B. Ashford D. Solazzo C. Andrews P. Strahler J. Shapiro B. Ostrom P. Gandhi H. Miller W. Raney B. Zylber M. I. Gilbert M. T. Prigodich R. V. Ryan M Buckley, Simon Y. W. Ho, Yue-U.-E. Yang, Colin Smith ORCID, M. Thomas P. Gilbert, Peter Ashton, Enrico Cappellini, Hannah Koon, Kirsty Penkman, Jt T. Oates, Ben-E.-N. Elsworth ORCID, Caroline Solazzo, Pavel A. Pevzner and other authors.
This paper is available in a repository.
This paper is available in a repository.

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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.