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. 2014 Jun 5;9(6):e97903. doi: 10.1371/journal.pone.0097903

Figure 2. Structure of the N. gonorrhoeae MtrD efflux pump.

Figure 2

(a) Ribbon diagram of a protomer of MtrD viewed in the membrane plane. The molecule is colored using a rainbow gradient from the N-terminus (blue) to the C-terminus (red). Sub-domains DN, DC, PN2, PC1 and PC2 are labeled. The location of PN1 is behind PN2, PC1 and PC2. (b) Ribbon diagram of the MtrD trimer viewed in the membrane plane. Each subunit of MtrD is labeled with a different color. Residues 917–927 (only found in MtrD) forming the upper portion of TM9 and the loop connecting TM9 and TM10 are in blue color.