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Dimeric cryo-EM structure of the resolved M. tuberculosis cyt-bcc:aa3 oxidase. The cyt-bcc subunits in the structure consist of QcrC (green and orange), QcrA (gold), and QcrB (cyan). The cyt-aa3 subunits constitute CtaC (gray), CtaJ (light blue), CtaD (cream), CtaE (magenta), CtaF (blue), and CtaI (dark green).
