Ontology highlight
ABSTRACT:
INSTRUMENT(S): instrument model, LTQ
ORGANISM(S): Mammut Americanum (american Mastodon)
SUBMITTER: John Asara
PROVIDER: PRD000088 | Pride | 2009-07-28
REPOSITORIES: pride
Action | DRS | |||
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PRIDE_Exp_Complete_Ac_8844.pride.mgf.gz | Mgf | |||
PRIDE_Exp_Complete_Ac_8844.xml.gz | Xml |
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Science (New York, N.Y.) 20070401 5822
Fossilized bones from extinct taxa harbor the potential for obtaining protein or DNA sequences that could reveal evolutionary links to extant species. We used mass spectrometry to obtain protein sequences from bones of a 160,000- to 600,000-year-old extinct mastodon (Mammut americanum) and a 68-million-year-old dinosaur (Tyrannosaurus rex). The presence of T. rex sequences indicates that their peptide bonds were remarkably stable. Mass spectrometry can thus be used to determine unique sequences ...[more]