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. 2013 May 7;8(5):e62745. doi: 10.1371/journal.pone.0062745

Figure 6. Substrate conduction through H318A AmtB.

Figure 6

A.Neighboring residues around Ala318 in crystal structure 2NPE. B. The frequency of hydrophobic interaction pair between methylamine and the residues round residue 318 in the process of methylamine transport in the wild type (cyan) and H318A mutated EcAmtB (purple). Data were collected from trajectories A1 and C1, respectively. C, Two snapshots showing the most frequent staying locations of methylamine in the trajectory through H318A AmtB. D, Frequency distribution for the location of methylamine along the Z-axis of the channel in H318A AmtB (trajectory C1, data were collected in the whole trajectory).