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Figure 6
Locations of specific residues involved in the proton-relay network in the MexBYB protomers. The locations of specific residues involved in the proton-relay network of the three MexBYB protomers are shown in (a)–(d) MexBYB-Ka-supplemented I (PDB entry 22xk) and (e)–(h) MexBYB-Ka-supplemented II (PDB entry 22xm). Ribbon diagram of MexBYB-Ka-supplemented I and MexBYB-Ka-supplemented II showing the locations of the proton-relay network (black box). The residues are shown in cyan and the density map of each conformation is shown as a black mesh. The density maps of MexBYB-Ka-supplemented I and MexBYB-Ka-supplemented II are contoured at 5.0σ (sigma units) in PyMOL, corresponding to levels of 0.0878 and 0.0891 in ChimeraX, respectively.

Journal logoSTRUCTURAL BIOLOGY
COMMUNICATIONS
ISSN: 2053-230X
Volume 82| Part 3| March 2026| Pages 83-93
https://doi.org/10.1107/S2053230X26001202
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