The Set of Amino Acids Used in Life Is No “Frozen Accident”
acyl transfer, aldehydes, alphabet, amino acids, anhydrides, atoms, biosynthetic cost, codons, cyclisation, decomposition, DNA replication, esters, Evolution, Francis Crick, hydrolysis, hydrophobicity, Intelligent Design, ketones, nitriles, polypeptides, protein core, proteins, purposeful selection, racemisation, side chains, solubility, stability, surface, teleology, The FEBS Journal, tRNAs
Significantly, these data indicate that the space of usable amino acids is severely constrained. Source