Description
The sequence of this opioid peptide was found at 15 sites in the primary structure of the high molecular weight glutenin. Gluten exorphin A5 is highly specific for δ-receptors and displays opioid activity in the MVD assay. The N-terminal Gly increases its activity – thus the structure-activity relationships of gluten exorphins A are quite different from those of the endogenous opioid peptides.
