The WP article doesn't mention anything of the kind, and when I studied freshman biochemistry nothing like that was mentioned, either. OTOH there's a lot of variations in the (vastly bigger, more complex and more diverse and numerous) organic molecules that work with ATP.
http://www.scientificamerican.com/article.cfm?id=marijuana-reveals-memory-mechanism
I wonder what the implications are for brain preservation and whole brain emulation? If glial cells are important, then saving and emulating the neurons alone probably won't be enough.