Structural analysis and Caco-2 cell permeability of the celiac-toxic A-gliadin peptide 31–55 - Iacomino, G; Fierro, O; DʼAuria, S; Picariello, G; Ferranti, P; Liguori, C; Addeo, F; Mamone, G (J Agric Food Chem, 2013)