Hello Wacek, All, On Wed, Mar 25, 2009 at 4:20 PM, Wacek Kusnierczyk <waclaw.marcin.kusnierc...@idi.ntnu.no> wrote: > hmm, so a mixture of all sorts of substances, incidentally *containing* > exactly one polypeptide chain, would be a protein? a box *containing* > exactly one polypeptide chain would be a protein?
Sorry: I think it was any compound containing exactly one polypeptide chain. > clear enough, really? i think the following, taken from stryer's > biochemistry, 5e p. 41, is more resonable: > > "Proteins are linear polymers built of monomer units called amino acids." If I add a phospho group, is it still a protein? If yes, it's like the above. Take care Oliver -- Oliver Ruebenacker, Computational Cell Biologist BioPAX Integration at Virtual Cell (http://vcell.org/biopax) Center for Cell Analysis and Modeling http://www.oliver.curiousworld.org