Sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE) with Coomassie Brilliant Blue R-250 staining of German wheat samples (A) and band intensity as relative protein content of the extracted ATIs (B). The marked region includes the bands between 10–20 kDa. 1–5; 6–10, and 11–15 represent the fractions whole-meal flour, centrifuged flour, passage flour, grain bran, and sling bran of the Julius, Ponticus, and Elixier cultivars, respectively. Samples 16 to 25 represent the extracts from A. bayernkönig, Julius 2017IRGT reformIFindus, Nordkap, Patras, Ponticus 2017, Kerubino, Tobias, and Capo, respectively.