Fig. 1: OqxB structural features.
From: Structure and function relationship of OqxB efflux pump from Klebsiella pneumoniae

The OqxB structure single protomer (A) with important sub-domains is highlighted with varied colors and labeled accordingly. The porter sub-domains PC1, PC2, PN1, and PN2 are highlighted with orange, magenta, cyan, and green color cartoon, respectively. The six OqxB protomers (B) superimposed to demonstrate the identical nature of individual protomers.