Fig. 6

Effect of heterologous pathway on L-Trp metabolism. L-Trp L-Tryptophan, IPA indole pyruvic acid, IND Indole, I3CA indole-3-carboxylic acid, TRM tryptamine, IAM indole-3-acetamide, IAld indole-3-aldehyde, IAA indole-3-acetic acid, IEt tryptophol, ILA indole-3-lactic acid, IPrA indole-3-propionic acid, DDAQ D Didemethylasterriquinone D. Concentrations of L-Trp consumed and L-Trp catabolites produced were normalized to dry cell weight. A L-Trp degradation pathway in E. coli. B Heatmap of L-Trp catabolites with the addition of 0.75 g/L L-Trp and at 16 h. The content comparison of C L-Trp, the key catabolites D IPA, E IND, F IAA, and G ILA between () BL-control and () BL-3