Main Reaction: 2,3-oxidosqualene >> sitosterol

Reference: PubMed ID: 19139393
Authors: Ohyama K, Suzuki M, Kikuchi J, Saito K, Muranaka T
Title: Dual biosynthetic pathways to phytosterol via cycloartenol and lanosterol in Arabidopsis.
Published: 2009 Jan 20

2,3-oxidosqualene --> sitosterol