@article{0d5bdb43b6b141b0821740a5e358fffc,
title = "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 α1(I) collagen sequences with amphibians rather than birds suggest that T. rex does not.",
keywords = "ANCIENT DNA, COLLAGEN",
author = "Mike Buckley and Angela Walker and Ho, {Simon Y. W.} and Yue Yang and Colin Smith and Peter Ashton and Oates, {Jane Thomas} and Enrico Cappellini and Hannah Koon and Kirsty Penkman and Ben Elsworth and Dave Ashford and Caroline Solazzo and Phillip Andrews and John Strahler and Beth Shapiro and Peggy Ostrom and Hasand Gandhi and Webb Miller and Brian Raney and Zylber, {Maria Ines} and Gilbert, {M. Thomas P.} and Prigodich, {Richard V.} and Michael Ryan and Rijsdijk, {Kenneth F.} and Anwar Janoo and Collins, {Matthew J.}",
year = "2008",
month = jan,
day = "4",
doi = "10.1126/science.1147046",
language = "English",
volume = "319",
pages = "33",
journal = "Science",
issn = "0036-8075",
publisher = "American Association for the Advancement of Science",
number = "5859",
}