The enzyme tryptophanase (EC 4.1.99.1) catalyzes the chemical reaction This enzyme belongs to the family of lyases, specifically in the "catch-all" class of carbon-carbon lyases.

The systematic name of this enzyme class is L-tryptophan indole-lyase (deaminating; pyruvate-forming).

Other names in common use include L-tryptophanase, and L-tryptophan indole-lyase (deaminating).

[1][2][3] As of late 2007, 3 structures have been solved for this class of enzymes, with PDB accession codes 1AX4,[4] 2C44,[5] and 2OQX.

This EC 4.1 enzyme-related article is a stub.