Once upon a time, when our planet Earth was very young and very new, there was not a single scrap of life on it to be found.
at room temperature and across a wide range of pH conditions. With some carbon dioxide thrown in, this reaction really picks up speed.This led the researchers to wonder if they could replicate their success trying to create more complex organic molecules – amino acids, of which all proteins in living cells consist.
Krishnamurthy and his colleagues thought that there may be a pathway via which α-keto acids can form amino acids without the presence of enzymes. They started with α-keto acids, of course, and added cyanide, since their previous experiments showed that it is an effective driver of chemical reactions that produce organic molecules.
"We were expecting it to be quite difficult to figure this out, and it turned out to be even simpler than we had imagined,"."If you mix only the keto acid, cyanide and ammonia, it just sits there. As soon as you add carbon dioxide, even trace amounts, the reaction picks up speed."
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