Cleaning up the clutter: How proto-biology arose from the prebiotic clutter
Phys.org | February 06, 2019
Just like the mythical creation stories that depict the formation of the world as the story of order from chaos, the early Earth was home to a chaotic clutter of organic molecules from which, somehow, more complex biological structures such as RNA and DNA emerged. There was no guiding hand to dictate how the molecules within that prebiotic clutter should interact to form life. Yet, had those molecules just interacted randomly then, in all likelihood, that they would never have chanced upon the right interactions to ultimately lead to life. "The question is, out of all the random possibilities, are there any rules that govern these interactions?" asks Ramanarayanan Krishnamurthy, an organic chemist at the Scripps Research Institute in California.
These rules would be selective, inevitably leading to the right interactions for assembling life's building blocks. To unlock the secrets of these rules and how the prebiotic clutter transitioned to the biologically ordered world of life, Krishnamurthy utilizes a discipline called "systems chemistry," and published a paper concerning the topic in the journal Accounts of Chemical Research that explores this relatively new way of understanding how life came from non-life.