8ac5 | pdb_00008ac5

Complex III2 from Yarrowia lipolytica, with decylubiquinol, oxidised, b-position

spinqualitylabelsall models 8ac5, resolution 3.10Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 8ac5 is a 20 chain structure with sequence from Yarrowia lipolytica. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Ligands: CDL, FES, HEC, LMT, PC1, PTY, XP4 Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Function QCR7_YARLI Component of the ubiquinol-cytochrome c oxidoreductase, a multisubunit transmembrane complex that is part of the mitochondrial electron transport chain which drives oxidative phosphorylation. The respiratory chain contains 3 multisubunit complexes succinate dehydrogenase (complex II, CII), ubiquinol-cytochrome c oxidoreductase (cytochrome b-c1 complex, complex III, CIII) and cytochrome c oxidase (complex IV, CIV), that cooperate to transfer electrons derived from NADH and succinate to molecular oxygen, creating an electrochemical gradient over the inner membrane that drives transmembrane transport and the ATP synthase. The cytochrome b-c1 complex catalyzes electron transfer from ubiquinol to cytochrome c, linking this redox reaction to translocation of protons across the mitochondrial inner membrane, with protons being carried across the membrane as hydrogens on the quinol. In the process called Q cycle, 2 protons are consumed from the matrix, 4 protons are released into the intermembrane space and 2 electrons are passed to cytochrome c.[UniProtKB:P00128]

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