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. 2022 Mar 3;13:849585. doi: 10.3389/fmicb.2022.849585

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Copyright © 2022 Zhai, Wu, Ji, Zhao, Lu, Yu, Xu and Huang.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Multiple sequence alignment of QsGH13 and other members of the GH13 family. The sequences include alpha-glucosyl transfer enzyme XgtA from Xanthomonas campestris (PDB ID:6AAV), alpha-glucosidase HaG from Halomonas sp. H11 (PDB ID:3WY1), oligo-1,6-glucosidase MaIL from Bacillus subtilis subsp. subtilis (PDB ID:4M56), and alpha-glucosidase GSJ from Geobacillus sp. HTA-462 (PDB ID: 2ZE0). The conserved catalytic residues in the GH13 family were marked with a red box. The asterisk represents the catalytic residue.