The Reaction Mechanism of the Enzyme-Catalyzed Central Cleavage of beta-Carotene to Retinal This research was supported by F. Hoffmann-La Roche AG and the Swiss National Science Foundation. We are grateful to F. Hoffmann-La Roche AG for a generous gift of carotenoids and Dr. Claus Bornemann for preliminary experiments
Angew Chem Int Ed Engl. 2001 Jul 16;40(14):2613-2617.