Main Reaction: NAD+ + glycine >> hydroxyethylthiazole phosphate

Reference: PubMed ID: 18093957
Authors: Croft MT, Moulin M, Webb ME, Smith AG
Title: Thiamine biosynthesis in algae is regulated by riboswitches.
Published: 2007 Dec 26

NAD + glycine --> hydroxyethylthiazole phosphate