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. 2016 Mar 16;6:23274. doi: 10.1038/srep23274

Figure 5. Catalytic mechanism of hydrolyzing UDP-GlcNAc 2-epimerase.

Figure 5

B1 and B2 are two catalytic bases. B1 deprotonates the C2 atom on one side, forming a 2-acetamidoglucal intermediate. B2 re-protonates the same atom from opposite side when an activated water molecule attacks the C1 atom.