Abstract:Translation according to the genetic code is made possible by selectivity both in aminoacylation of tRNA and in antico-don:codon recognition. In extant biology, tRNAs are selectively aminoacylated by enzymes using high-energy intermediates, but how this might have been achieved prior to the advent of protein synthesis has been a largely unanswered question in prebiotic chemistry. We have now elucidated a novel, prebiotically plausible stereoselective aminoacyl-RNA synthesis which starts from RNA-amino acid pho… Show more
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