Main Reaction: Phenylalanine+Tyrosine >> L-tryptophan

Reference: PubMed ID: 25178933
Authors: Shi S, Shen Y, Zhao Z, Hou Z, Yang Y, Zhou H, Zou J, Guo Y
Title: Integrative analysis of transcriptomic and metabolomic profiling of ascites syndrome in broiler chickens induced by low temperature.
Published: 2014 Nov

Phenylalanine + Tyrosine --> L-tryptophan