Fig. 5
From: Emergence of native peptide sequences in prebiotic replication networks
General mechanism of a network reaction initiated by N and any one of the electrophiles Ex. The scheme illustrates the central role of the glutaric anhydride intermediates A and A D in the dynamic exchange between the starting material and the product isomers, as well as the kinetically favored pathways leading to product 2 D γ and the catalyzed pathways leading to product 2 containing the native backbone
