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“Rieske Center”

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Iron-Sulfur Clusters. (When two or more clusters are linked, it’s a “center” -Helmut Beinert, personal comm.). “Rieske Center”. How do the protons get pumped into the Intermembrane Space?. Overview of electron flow in ETC. The “Q Cycle” of Complex III. Requires two CoQs.

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“Rieske Center”

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  1. Iron-Sulfur Clusters. (When two or more clusters are linked, it’s a “center” -Helmut Beinert, personal comm.) “Rieske Center”

  2. How do the protons get pumped into the Intermembrane Space?

  3. Overview of electron flow in ETC.

  4. The “Q Cycle” of Complex III. Requires two CoQs. Net result is using one net CoQH2 to transfer two electrons to cyt c1, pump four protons into IM space, and regenerate one CoQ.

  5. Complex IV (Cytochrome C Oxidase) Site of H2O formation.

  6. Coupling of ETC to ATP Synthesis.

  7. ...appears to be a proton gradient AND a charge separation (capacitor?)

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