Racemization of amino acids under natural conditions: part 2—kinetic and thermodynamic data

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Racemization of amino acids is frequently claimed to have half-lives on the order of tens of thousands to millions of years. This is misleading. I show that L?D residue interconversion in small, soluble peptides occurs at 25°C on the timescale of only about a century for the first 10% in oceans, rendering them already unsuitable for life-related chemistry.

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  • Categories: Biology