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. Author manuscript; available in PMC: 2019 Oct 31.
Published in final edited form as: J Am Chem Soc. 2018 Oct 16;140(43):14224–14234. doi: 10.1021/jacs.8b08153

Figure 1.

Figure 1.

Cross section structure of the γ-HL nanopore showing the dimension of the lumen. The γ-HL pore is an octamer with four HlgB chains (gray) and four HlgC chains (blue) alternating around a central axis.48 This putative HlgC-HlgB pore structure is based on the crystal structure of the HlgA-HlgB homologue (PDB: 3B07)48 with one mutation in the β-barrel: lysine to threonine in position 108 of HlgA (highlighted in red). The surface representation, K108T mutations, and the dimensions of the protein were generated using PyMOL.