1.10.3.11 ? x * 36000, SDS-PAGE 742534 1.10.3.11 ? x * 50470, calculated from amino acid sequence 742768 1.10.3.11 ? x * 53000 + x * 30000, SDS-PAGE -, 725319 1.10.3.11 dimer the enzyme exists mainly as a non-covalently linked dimer when expressed in Schizosaccharomyces pombe 715427 1.10.3.11 heterodimer 1 * 53583 + 1 * 37813, calculated from amino acid sequence -, 715401 1.10.3.11 heterodimer 1 * 54000 + 1 * 44000, SDS-PAGE -, 715401 1.10.3.11 homodimer - 715410 1.10.3.11 homodimer 2 * 29000, SDS-PAGE 714299 1.10.3.11 homodimer 2 * 32000 714297 1.10.3.11 homodimer 2 * 32000, SDS-PAGE -, 714309 1.10.3.11 homodimer 2 * 35000, SDS-PAGE 713936 1.10.3.11 homodimer 2 * 38000, SDS-PAGE -, 713637 1.10.3.11 homodimer with two hydrophobic cavities per monomer. Both cavities bind ubiquinol and along with Tyr220 are required for the catalytic cycle for O2 reduction, but also inhibitors bind to one cavity and Tyr220, respectively. A second cavity interacts with the inhibitor-bindingcavity at the diiron center 726398 1.10.3.11 monomer 1 * 36000, SDS-PAGE 713939 1.10.3.11 additional information subunit composition and structures, overview. No cytochrome bc1 complex subunit 726386 1.10.3.11 trimer 1 * 63900, subunit I CoxA2, + 1 * 16800, subunit II CoxB2, + 1 * 5200, subunit IIa, about, mass spectrometry 726386