Wacek Kusnierczyk <waclaw.marcin.kusnierc...@idi.ntnu.no> writes: >>> I don't know whether the BioPAX Level 2 definition of protein is the >>> most useful one, but at least it sounds clear to me: >>> >>> protein = anything containing exactly one polypeptide chain >>> >>> Clear enough? >>> >> >> >> So insulin is not a protein, wheras a dipeptide is? >> > > indeed; insulin is a protein complex, and a dipeptide, following this > and other similar definitions, is a protein. >
Insulin is two polypeptide changes so following this definition is not a protein. Phil
