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Related: About this forumChemists May Have Found the 'Missing Link' to the First Life on Earth
By Dave Roos, Seeker | November 10, 2017 02:38pm ET
Four billion years ago, Earth was covered in a watery sludge swarming with primordial molecules, gases, and minerals nothing that biologists would recognize as alive. Then somehow, out of that prebiotic stew emerged the first critical building blocks proteins, sugars, amino acids, cell walls that would combine over the next billion years to form the first specks of life on the planet.
A subset of chemists have devoted their careers to puzzling out the early chemical and environmental conditions that gave rise to the origins of life. With scant clues from the geological record, they synthesize simple molecules that may have existed billions of years ago and test if these ancient enzymes had the skills to turn prebiotic raw material into the stuff of life.
A team of such chemists from the Scripps Research Institute reported Nov. 6 in the journal Nature Chemistry that they identified a single, primitive enzyme that could have reacted with early Earth catalysts to produce some of the key precursors to life: the short chains of amino acids that power cells, the lipids that form cell walls, and the strands of nucleotides that store genetic information.
Ramanarayanan Krishnamurthy is an associate professor of chemistry at Scripps and lead author of the origins of life paper. For a number of years, his lab has been experimenting with a synthetic enzyme called diamidophosphate (DAP) thats been shown to drive a critical chemical process called phosphorylation. Without phosphorylation which is simply the process of adding a phosphate molecule to another molecule life wouldn't exist.
More:
https://www.livescience.com/60907-missing-link-first-life-on-earth.html?utm_source=notification
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Chemists May Have Found the 'Missing Link' to the First Life on Earth (Original Post)
Judi Lynn
Nov 2017
OP
Pachamama
(16,887 posts)1. Ahhhh....the recipe book for the primordial soup we all come from....
With a dash and sprinkle of stardust....
How very cool....
MFM008
(19,818 posts)2. quite a few
are still mired in sludge and slime and NOT evolving..............................
SEE:
republicans..........
ret5hd
(20,516 posts)3. So ya'll expect me to believe...
that we went from nothing to slime to monkeys to me in only 6000 years???