Table 1. A List of Prebiotically Plausible Organic Cofactors (Divided to Nucleotide-Derived and Other), Their Possible Functions and Binding Properties in Extant Proteins4,10a.
The percentage of the presumed “early” amino acids average involvement in binding to the cofactors is listed (the average overall content of “early” amino acids across PDB is 67%). For comparison with the presumed later coenzymes, refer to ref (4).