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Paleoproteomics of Mesozoic Dinosaurs and Other Mesozoic Fossils

Published on Jul 4, 2019in Proteomics 3.53
· DOI :10.1002/pmic.201800251
Abstract
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Published on Dec 1, 2018in BMC Evolutionary Biology 3.03
Frido Welker6
Estimated H-index: 6
(MPG: Max Planck Society)
Background The study of ancient protein sequences is increasingly focused on the analysis of older samples, including those of ancient hominins. The analysis of such ancient proteomes thereby potentially suffers from “cross-species proteomic effects”: the loss of peptide and protein identifications at increased evolutionary distances due to a larger number of protein sequence differences between the database sequence and the analyzed organism. Error-tolerant proteomic search algorithms should th...
3 Citations Source Cite
Published on Dec 1, 2018in Nature Communications 12.35
Jasmina Wiemann3
Estimated H-index: 3
(Yale University),
Matteo Fabbri5
Estimated H-index: 5
(Yale University)
+ 4 AuthorsDerek E. G. Briggs62
Estimated H-index: 62
(Yale University)
Vertebrate hard tissues consist of mineral crystallites within a proteinaceous scaffold that normally degrades post-mortem. Here we show, however, that decalcification of Mesozoic hard tissues preserved in oxidative settings releases brownish stained extracellular matrix, cells, blood vessels, and nerve projections. Raman Microspectroscopy shows that these fossil soft tissues are a product of diagenetic transformation to Advanced Glycoxidation and Lipoxidation End Products, a class of N-heterocy...
5 Citations Source Cite
Published on Dec 1, 2018in Nature 41.58
Johan Lindgren20
Estimated H-index: 20
(Lund University),
Peter Sjövall27
Estimated H-index: 27
(Research Institutes of Sweden)
+ 20 AuthorsC. Alwmark13
Estimated H-index: 13
(Lund University)
Ichthyosaurs are extinct marine reptiles that display a notable external similarity to modern toothed whales. Here we show that this resemblance is more than skin deep. We apply a multidisciplinary experimental approach to characterize the cellular and molecular composition of integumental tissues in an exceptionally preserved specimen of the Early Jurassic ichthyosaur Stenopterygius. Our analyses recovered still-flexible remnants of the original scaleless skin, which comprises morphologically d...
3 Citations Source Cite
Published on Nov 28, 2018in PLOS ONE 2.77
Mary Higby Schweitzer3
Estimated H-index: 3
(NCSU: North Carolina State University),
Wenxia Zheng10
Estimated H-index: 10
(NCSU: North Carolina State University)
+ 2 AuthorsJohan Lindgren20
Estimated H-index: 20
1 Citations Source Cite
Published on Nov 1, 2018in Organic Geochemistry 2.81
Evan T. Saitta4
Estimated H-index: 4
(UoB: University of Bristol),
Ian Fletcher (Northumbria University)+ 8 AuthorsKirsty Penkman28
Estimated H-index: 28
(Ebor: University of York)
Abstract White fibers from a Late Cretaceous dinosaur Shuvuuia deserti stained positive for β-keratin antibodies in a 1999 paper, followed by many similar immunological claims for Mesozoic protein in bones and integument. Antibodies recognize protein epitopes derived from its tertiary and quaternary structure, so such results would suggest long polypeptide preservation allowing for sequencing with palaeobiological implications. However, proteins are relatively unstable biomacromolecules that rea...
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Published on May 1, 2018in Nature Ecology and Evolution
Jessica Hendy7
Estimated H-index: 7
(MPG: Max Planck Society),
Frido Welker6
Estimated H-index: 6
(MPG: Max Planck Society)
+ 3 AuthorsMatthew J. Collins51
Estimated H-index: 51
(Ebor: University of York)
Palaeoproteomics is an emerging neologism used to describe the application of mass spectrometry-based approaches to the study of ancient proteomes. As with palaeogenomics (the study of ancient DNA), it intersects evolutionary biology, archaeology and anthropology, with applications ranging from the phylogenetic reconstruction of extinct species to the investigation of past human diets and ancient diseases. However, there is no explicit consensus at present regarding standards for data reporting,...
9 Citations Source Cite
Published on Jan 31, 2018in Journal of Proteome Research 3.95
Timothy P. Cleland11
Estimated H-index: 11
(Museum Conservation Institute),
Elena R. Schroeter8
Estimated H-index: 8
(NCSU: North Carolina State University)
The last two decades have seen a broad diversity of methods used to identify and/or characterize proteins in the archeological and paleontological record. Of these, mass spectrometry has opened an unprecedented window into the proteomes of the past, providing protein sequence data from long extinct animals as well as historical and prehistorical artifacts. Thus, application of mass spectrometry to fossil remains has become an attractive source for ancient molecular sequences with which to conduc...
3 Citations Source Cite
Published on Dec 1, 2017in Scientific Reports 4.12
Johan Lindgren20
Estimated H-index: 20
(Lund University),
Takeo Kuriyama6
Estimated H-index: 6
(University of Hyogo)
+ 9 AuthorsNaoki Kamezaki3
Estimated H-index: 3
(Okayama University of Science)
The holotype (MHM-K2) of the Eocene cheloniine Tasbacka danica is arguably one of the best preserved juvenile fossil sea turtles on record. Notwithstanding compactional flattening, the specimen is virtually intact, comprising a fully articulated skeleton exposed in dorsal view. MHM-K2 also preserves, with great fidelity, soft tissue traces visible as a sharply delineated carbon film around the bones and marginal scutes along the edge of the carapace. Here we show that the extraordinary preservat...
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Published on Nov 1, 2017in International Journal of Osteoarchaeology 1.43
P. Szpak1
Estimated H-index: 1
(Trent University),
K. Krippner1
Estimated H-index: 1
(LMU: Ludwig Maximilian University of Munich),
M. P. Richards1
Estimated H-index: 1
(SFU: Simon Fraser University)
This study compared bone collagen extraction techniques that included treatment with sodium hydroxide and 30 kDa ultrafilters using a set of well-preserved, humic-contaminated archaeological marine mammal bones. Treatment with sodium hydroxide was effective at removing humic contaminants from archaeological bone, although yields were significantly decreased. Yields were also significantly decreased by ultrafiltration although this study produced no evidence that 30 kDa ultrafilters were effectiv...
5 Citations Source Cite
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