tryptophanase activity Catalysis of the reaction: L-tryptophan + H(2)O = indole + NH(4)(+) + pyruvate. EC:4.1.99.1 GO:0009034 KEGG:R00673 L-tryptophan indole-lyase (deaminating) activity L-tryptophan indole-lyase (deaminating; pyruvate forming) activity L-tryptophan indole-lyase activity L-tryptophanase activity MetaCyc:TRYPDEG-PWY MetaCyc:TRYPTOPHAN-RXN Note that this term has a MetaCyc pathway reference as the pathway only has a single step. RHEA:19556 TNase activity UniPathway:UPA00332 molecular_function tryptophan catabolic process, using tryptophanase tryptophan catabolism, using tryptophanase