3.4.21.26 gluten + H2O activity in the human host gastrointestinal tract, overview 3.4.21.26 gluten + H2O degradation of gluten in the human host's intestinal tract, i.e. stomach, duodenum, jejunum, and ileum 3.4.21.26 gluten peptide + H2O - 3.4.21.26 gluten peptides + H2O activity in the human host gastrointestinal tract, overview 3.4.21.26 gluten peptides + H2O degradation of gluten peptides in the human host's intestinal tract, i.e. stomach, duodenum, jejunum, and ileum 3.4.21.26 gonadotropin releasing hormone + H2O - 3.4.21.26 Luliberin + H2O - 3.4.21.26 LVVYPWTQRF + H2O prolyl endopeptidase activity could be the first step of the degradation of LVV-hemorphin-7 3.4.21.26 melanotropin + H2O - 3.4.21.26 membrane-associated glycoprotein neural cell adhesion molecule + H2O -