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). This enzyme participates in tryptophan metabolism and nitrogen metabolism. It has 2 cofactors: pyridoxal phosphate, and Potassium.
Cowell JL, Maser K and DeMoss, RD (1973). "Tryptophanase from Aeromonas liquifaciens. Purification, molecular weight and some chemical, catalytic and immunological properties". Biochim. Biophys. Acta315: 449–463. doi:10.1016/0005-2744(73)90276-3.
NEWTON WA, MORINO Y, SNELL EE (1965). "PROPERTIES OF CRYSTALLINE TRYPTOPHANASE". J. Biol. Chem.240: 1211–8. PMID14284727.