ElectronTransportOxPhos2009

ElectronTransportOxPhos2009 - David L. Nelson and Michael...

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1 LEHNINGER David L. Nelson and Michael M. Cox PRINCIPLES OF BIOCHEMISTRY Fifth Edition CHAPTER 19 © 2008 W. H. Freeman and Company Oxidative Phosphorylation and Photophosphorylation The Biochemical Makeup of the Mitochondrion Fig. 19-1
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2 Refer also to chapter 13.4 (page 512- 515)
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3 The Respiratory Electron Transport Chain Standard reduction potential for the 4 Succinate I: NADH-Dehydrogenase membrane bound complexes Fumarate II: Succinate Dehydrogenase III: Cytochrome bc 1 -Complex IV: Cytochrome c- Oxidase UQ: Ubiquinone Coenzyme Q Fig. 19-2
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4 Prosthetic Groups of Cytochromes Fig. 19-3 Absorption Spectra of Cytochrome c Fig. 19-4
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5 Proteins with iron-Sulfur Centers Fig. 19-5 Ferredoxin of Anabaena (2F-2S) The Flow of Electrons and Protons through the Respiratory Electron Transport Chain Fig. 19-16
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6 The Complexes of the Respiratory Chain Electron Carriers are organized into membrane-embedded supramolecular complexes that can be separated. Fig. 19-7 The Path of Electrons from Different Donors to Ubiquinone Fig. 19-8
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7 Complex I: NADH:Ubiquinone Oxidoreduxtase Fig. 19-9 Complex I catalyzes the vectorial tf f4 t NADH The topology of the complexes (their orientation in the membrane) is critical. transfer of 4 protons per NADH from the matrix (N for negative) side to the intermembrane space (P- for positive). NADH + 5H + N + Q NAD + + QH 2 +4H + P
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8 Structure of Complex II (Succinate Dehydrogenase) from Porcine heart Remember our old friend from the TCA cycle?
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This note was uploaded on 01/17/2012 for the course NSC 461 taught by Professor Benning during the Fall '11 term at Michigan State University.

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ElectronTransportOxPhos2009 - David L. Nelson and Michael...

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