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. Author manuscript; available in PMC: 2022 Jul 1.
Published in final edited form as: Nat Struct Mol Biol. 2021 Dec 30;29(1):40–46. doi: 10.1038/s41594-021-00699-y

Fig. 2 |. Comparison of A3 and B3 structures.

Fig. 2 |

a, Superposition of A3I, A3II and A3III protomers. b, Superposition of A3I and B3 protomers. c-e, Differences between A3 and B3 in S1-S2 (c), S3-S4 (d), and the extracellular linker between S5 and the pore helix (e). NAG: N-acetyl-beta-D-glucosamine.