Isoelectric point (pI) of protein domains a Download Table Full article: Preformulation studies of l glutathione: physicochemical properties, degradation kinetics, and in vitro cytotoxicity investigations JaypeeDigital eBook Reader WEEK 3: AMINO ACIDS Amino acids are the fundamental building blocks of proteins and play a central role in biochemistry. Structurally, all amino acids share a common framework consisting of a