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. Author manuscript; available in PMC: 2019 Nov 15.
Published in final edited form as: Bioorg Med Chem. 2018 Oct 27;26(21):5751–5757. doi: 10.1016/j.bmc.2018.10.028

Figure 3.

Figure 3.

Crystal packing contact of Neu5Ac9N32en (2) in the active site of the B subunit of SpNanA with the adjacent subunit. The inhibitor (pink sticks) is hydrogen-bond (shown in red dashed lines) interacting with the peptide segment (yellow sticks) Glu691-Gly692-Lys693-Glu694 from the adjacent symmetric-related subunit A (different from the subunit A in the same asymmetric unit shown in Figure 2).