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Figure 6 | Biology Direct

Figure 6

From: On the origin of the translation system and the genetic code in the RNA world by means of natural selection, exaptation, and subfunctionalization

Figure 6

Origin of the translation system and the genetic code in the RNA World. Step 2: the ribozyme R evolves an additional enzymatic activity, that of a peptide ligase; enhanced stimulation of the original reaction by the synthesized peptide ensues. One of the joined substrates is likely to be an activated amino acid derivative, such as an aminoacyl adenylate (see text).

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