When cursor points to a box further details will be displayed in a tooltip window. If you click on the box it will change to the appropriate reaction scheme or enzyme specification.

© IUBMB 2000
enzyme nomenclature homepageEC 5.5.1.19 lycopene β-cyclase(mechanism)
lutein biosynthesis
lycopene biosynthesis in cyanobacteria and higher plants
retinal and derivatives biosynthesis
zeaxanthin biosynthesis
EC 5.5.1.18 lycopene ε-cyclase (mechanism)