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. 2016 Jul 19;291(36):19184–19195. doi: 10.1074/jbc.M116.740217

FIGURE 5.

FIGURE 5.

Accumulation of NH4+ close to the channel surface. In free simulations the NH4+ density (illustrated as blue mesh) is placed closely to the glutamate and aspartate residues on the protein surface, shown in red licorice representation.