US EditionChemists explain why dinosaur collagen may have survived for millions of years
5 Articles
5 Articles
How collagen survives for millions of years
Fragments of the protein collagen have been found preserved in dinosaur fossils 80 million to195 million years old. But this shouldn’t be possible. With a half-life of only about 500 years, the peptide bonds that hold proteins together ought to break down much, much sooner. Now, a new study in ACS Central Science has described the protective chemistry responsible for collagen’s extraordinary longevity. As the most abundant protein in animals, co…
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Space DailyMIT chemists explain why dinosaur collagen may have survived for millions of years
Collagen, a protein found in bones and connective tissue, has been found in dinosaur fossils as old as 195 million years. That far exceeds the normal half-life of the peptide bonds that hold proteins together, which is about 500 years. A new study from MIT offers an explanation for how collagen can survive for so much longer than expected. The research team found that a special atomic-level… Source
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