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. 2018 Oct 23;115(45):E10596–E10604. doi: 10.1073/pnas.1811003115

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Copyright © 2018 the Author(s). Published by PNAS.

This open access article is distributed under Creative Commons Attribution-NonCommercial-NoDerivatives License 4.0 (CC BY-NC-ND).

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Fig. 6. — Conformational changes of the translocation pathway gates of the MetNIQ complex. Structure comparison of the MetI subunits in their outward-facing conformation (A and C) (colored forest and pale yellow) versus inward-facing conformation (B and D) (colored gray) reveals major rearrangements of the periplasmic gate residues, including Y177 and M163 (cyan; shown in ball-and-stick representation) (A and B), and of the cytoplasmic gate residues, including F103, M107, and Y160 (black; shown in ball-and-stick representation) (C and D).