Wednesday, December 20, 2006
Just thought I'd share this. Geranyl geranyl is a post-translation moiety that is added to proteins like Rho and Ras to make them stick to membranes. It is a byproduct of the cholesterol-mevalonate pathway. Have you ever wondered what geranyl stood for and if it had anything to do with the geranium plant? Well it turns out geranyl related compounds are terpenoids found in the essential oil of the geranium and also from other plants such as roses. Geranyl diphosphate, pyrophosphate, acetate and geraniol (with an alcohol group) are all fragrant compounds. They are used in flavoring, perfumes, as insect repellent, insecticides, and apparently in cosmetics. The cigarette manufacturers are all too happy to add them to their cancer sticks, so next time someone complains about the smoke smell, you can tell them it smells like a rosebush.
Posted by Anonymous Coward at 2:49 PM