Figure 2. (a) Effect of Hapo concentration on the concentration of Hlip formed after a reaction time of 15 min; (b) Time course of Hlip formation at different concentrations of Hapo; (c) Relationship between the initial Hapo concentration and the specific lipoylation rate catalyzed by LplA; (d) Effect of Hlipconcentration on its own production (increment) after a reaction time of 40 min; (e) Time course of Hlip formation (increment) at different concentrations of Hlip externally added; (f) Relationship between the initial Hlip concentration and the specific lipoylation rate catalyzed by LplA.