IgA and IgG antibodies to deamidated gliadin peptide and tissue transglutaminase (tTG/DGP screen), IgG antibodies to gliadin (AGA), wheat allergen-specific IgE (wheat IgE). Profile starts with tTG/DGP screen test. If positive, testing stops. If negative, testing reflexes to the AGA test. If positive, testing stops. If negative, it reflexes to the wheat IgE test.