Tetrapeptide derived inhibitors of complexation of a class II MHC: fully unnatural ligands.
Jones AB., Acton JJ., Adams AD., Yuen W., Nichols EA., Schwartz CD., Wicker LS., Hermes JD.
Tetrapeptide derived major histocompatability (MHC) II ligands have been developed that contain no unadulterated peptide bonds. These are the 'least peptidic' ligands for any MHC protein yet reported.