9hwk

Structure of the Cytochrome o ubiquinol oxidase embedded in the nanodisc

spinqualitylabelsall models 9hwk, resolution 2.72Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 9hwk is a 4 chain structure with sequence from Escherichia coli. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Method: Electron Microscopy, Resolution 2.72Å Ligands: CU, HEM, HEO, ZN Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Function CYOB_ECO57 Cytochrome bo(3) ubiquinol oxidase is the terminal enzyme in the aerobic respiratory chain of E.coli that predominates when cells are grown at high aeration. Catalyzes the four-electron reduction of O2 to water, using a ubiquinol as a membrane soluble electron donor for molecular oxygen reduction; ubiquinol-8 is the natural substrate for E.coli. Has proton pump activity across the membrane in addition to electron transfer, pumping 2 protons/electron and generating a proton motive force. All the redox centers of this enzyme complex are located within the largest subunit, subunit I. Protons are probably pumped via D- and K- channels found in this subunit.[UniProtKB:P0ABI8]

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