... substrate glycon binding interac-tions compared to wild-type AMY1 while this in PNPG7hydrolysis appeared only for Met53Trp AMY1.Transglycosylation by Met53Ala/Tyr/TrpRetaining glycoside hydrolases ... orange. Otherbinding residues (W9AMY2, H92AMY2, T94AMY2, A95AMY2, Y1 30AMY2, A145AMY2, F180AMY2, K182AMY2, W206AMY2,S208AMY2, Y2 11AMY2, H288AMY2, Q294AMY2, M296AMY2andQ35TAA, ... residues 63–97; indi-catedbyarrow)isindarkblue.Thecatalyticacids(seeAabove)are colored in yellow. M52AMY2(M53AMY1)andW83TAAare in red(indicated by arrow). Y5 1AMY2and Y8 2TAAare in orange....