This family consists of several fungal trichodiene synthase proteins (EC:4.2.3.6). TRI5 encodes the enzyme trichodiene synthase, which has been shown to catalyse the first step in the trichothecene pathways of Fusarium and Trichothecium species [1,2].

1: Characterization of the gene cluster for biosynthesis of macrocyclic trichothecenes in Myrothecium roridum. Trapp SC, Hohn TM, McCormick S, Jarvis BB; Mol Gen Genet 1998;257:421-432. PMID:9529523

2: Structure of trichodiene synthase from Fusarium sporotrichioides provides mechanistic inferences on the terpene cyclization cascade. Rynkiewicz MJ, Cane DE, Christianson DW; Proc Natl Acad Sci U S A 2001;98:13543-13548. PMID:11698643