I remember reading once or twice people requiring examples of PDBs which contained ordered His-tags. Someone did a survey on this, which is on the latest Acta Cristallographica D:
http://journals.iucr.org/d/issues/2007/03/00/en5203/index.html Lucas __________________________________________________ Fale com seus amigos de graça com o novo Yahoo! Messenger http://br.messenger.yahoo.com/
