Figure 1 - full size

 

Figure 1.
Figure 1. Proposed mechanism for the proton-motive force generating redox loop by NarGHI and FdnGHI. MQ and MQH2, menoquinone and menaquinol, respectively; b[D] and b[P], distal and proximal heme, respectively; FS, [Fe-S] clusters; Mo-bisMGD, molybdenum cofactor.

The above figure is reprinted by permission from Macmillan Publishers Ltd: Nat Struct Biol (2003, 10, 681-687) copyright 2003.