Main Reaction: Indoleglycerol phosphate + L-serine >> L-tryptophan + glyceraldehyde 3-phosphate

Reference: PubMed ID: 2966157
Authors: Pratt ML, DeMoss JA
Title: Neurospora tryptophan synthase. Characterization of the pyridoxal phosphate binding site.
Published: 1988 May 15

+ --> +