A hypothesized structure of gliadin.
Alpha-helices in regions II and IV
(regions II and IV made up of a repetitive sequence of glutamine residues).
- = cys152
- = cys182
- = cys183
- = cys195
- = cys299
- = cys307
Region I (hydrophobic region)
A molecule of gliadin in solution spontaneously
combines with other molecules through hydrogen bonding to form a
UNIT. Formation of the unit causes the exposure of hydrophobic groups
making it insoluble in water. These exposed hydrophobic groups interact with
other units to form large aggregates.
©Georges-Louis Friedli 1996