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. Author manuscript; available in PMC: 2016 Sep 12.
Published in final edited form as: Biochemistry. 2015 Apr 10;54(15):2443–2455. doi: 10.1021/acs.biochem.5b00020

Figure 9.

Figure 9

(A) Membrane topology model of RnfE. Acidic residues implicated in sodium binding and release are colored red (E116, D130, and E150). (B) Homology model of RnfE superimposed on the NqrD structure. The acidic residues implicated in sodium transport in Na+-NQR are labeled in RNF (red) and Na+-NQR (yellow) structures [RnfE-E116 (NqrD-E119), RnfE-D130 (NqrB-D133), and RnfE-E150 (NqrD-E153)]. The model created using RaptorX was selected as the best model; this selection was made on the basis of comparison to our RnfE topology data and the crystallographic structure of Na+-NQR.