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

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.
Publication status:
Published

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Publisher copy:
10.1126/science.1147046

Authors


Buckley, M More by this author
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Journal:
Science (New York, N.Y.)
Volume:
319
Issue:
5859
Pages:
33
Publication date:
2008-01-05
DOI:
EISSN:
1095-9203
ISSN:
0036-8075
URN:
uuid:16508ac9-8aed-42f0-b4d0-b0219eb9958c
Source identifiers:
2926
Local pid:
pubs:2926

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