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Though the three-dimensional structures of barley α-amylase isozymes AMY1 and AMY2 are very similar, they differ remarkably from each other in their affinity for Ca 2+ and when interacting with substrate analogs. A surface site recognizing maltooligosaccharides, not earlier reported for other α-amylases and probably associated with the different activity of AMY1 and AMY2 toward starch...
Alkalophilic Bacillus α-amylase (ABA) was produced in the yeast Pichia pastoris with a yield of 50 mg L −1 of culture supernatant. The recombinant protein, rABA, was glycosylated at seven of the nine sites for potential N-glycosylation as identified by automated peptide sequencing and MALDI-TOF MS of tryptic fragments. The number of hexose units within each glycan chain was found to vary from...
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