Indole bacterial degradation

Fetzner, S., Bacterial Degradation of Pyridine, Indole, Quinoline, and Their Derivatives Under Different Redox Conditions.. Appl. Microbiol. Biotechnol., 1998. 49 pp. 237-250. 

Fetzner, S. Bacterial degradation of p3rridine. indole, quinoline, and their derivatives under different redox conditions, Appl. Microbiol. BiotechnoL, 49 237-250, 1998. 

After the loss of a H from the o-C atom, stabilization can also be attained by eliminating X" from the -C atom and forming a double bond. In nonenzymic model experiments serine and cysteine react according to this scheme of a, -elimination to produce aminoacrylic acid and eventually pyruvic acid and NH3. And in bacterial metabolism, tryptophan is degraded in this fashion to indole + pyruvic acid -t- NHj. 

---