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Activation parameters at 25°C for the second-order uncatalyzed (knon) and ribosome catalyzed peptide bond formation (kcat/KM), calculated from the concentration of total amine at pH 7.5. The broken line shows the first-order reaction in the ribosomal active site (kcat). K‡ values represent the equilibrium constant between the ground state and transition state calculated from the differences in free energy.
