Figure 4.

Block scheme illustrating the putative chain of KF707 based on spectroscopic, functional, and genetic analysis (this work and Di Tomaso et al., 2002). Symbols used: Succ, succinate dehydrogenase; NADH, NADH dehydrogenase; Cyt Cs, soluble cytochrome(s) c; bc₁ complex, cytochrome bc₁ complex III; CIO, cyanide insensitive oxidase (bd type) (encoded by cioABC); caa₃, cytochrome c oxidase (encoded by coxI-II-III cluster); ccaa₃, cytochrome c oxidase (encoded by coxMNOP); cbb₃1, cytochrome c oxidase (encoded by ccoN1O1Q1P1); cbb₃2, cytochrome c oxidase (encoded by ccoN2O2Q2P2); KFΔcco1, Cbb₃1 minus mutant. The size and color of the arrows symbolize the % level of expression of terminal oxidases under the tested growth conditions, namely: cells grown in glucose or biphenyl and harvested during their exponential (Expo) or stationary (Stat) phase of growth. The actual expression values are those of Figure 2.