Miki T, Umeda M, Harada Y.
J Biochem (Tokyo). 2007 Jan 18; [Epub ahead of print]
Inhibition of Reversed Electron Transfer and Proton Transport in the Beef Heart Cytochrome bc1 Complex by Chemical Modification.
PMID: 17234684

Kolling DJ, Brunzelle JS, Lhee S, Crofts AR, Nair SK.
Atomic Resolution Structures of Rieske Iron-Sulfur Protein:
Role of Hydrogen Bonds in Tuning the Redox Potential of Iron-Sulfur Clusters.
Structure. 2007 Jan;15(1):29-38.
doi:10.1016/j.str.2006.11.012

Extinction Coefficients?

What are the most accurate extinction coefficients for determining the concentration of the bc1 complex or its individual chromophores? Are there significant differences between species?
Not important for many purposes, but it is if you are looking at stoichiometry in supercomplexes, studying the shape of inhibitor titration curves, counting the quinones, or quibbling over who has the highest turnover number!

Baymann F, Giusti F, Picot D, Nitschke W.
The ci/bH moiety in the b6f complex studied by EPR: A pair of strongly interacting hemes.
Proc Natl Acad Sci U S A. 2007 Jan 3; [Epub ahead of print]
PMID: 17202266

14> M.G. Ding, J.P. di Rago and B.L. Trumpower, Investigating the Qn Site of the Cytochrome bc1 Complex in Saccharomyces cerevisiae with Mutants Resistant to Ilicicolin H, a Novel Qn Site Inhibitor, J Biol Chem 281 (2006) 36036-43.

13> R. Covian and B.L. Trumpower, Regulatory interactions between ubiquinol oxidation and ubiquinone reduction sites in the dimeric cytochrome bc1 complex, J Biol Chem 281 (2006) 30925-32.

12> I. Forquer, R. Covian, M.K. Bowman, B. Trumpower and D.M. Kramer, Similar transition states mediate the Q-cycle and superoxide production by the cytochrome bc1 complex, J Biol Chem (2006).

11> X. Gong, L. Yu and C.A. Yu, The role of an extra fragment of cytochrome b (residues 309-326) in the cytochrome bc1 complex from Rhodobacter sphaeroides, Biochemistry 45 (2006) 11122-9.

10>. Y.J. Zheng, Molecular basis for the enantioselective binding of a novel class of cytochrome bc1 complex inhibitors, J Mol Graph Model 25 (2006) 71-6.

9> A. Osyczka, H. Zhang, C. Mathe, P.R. Rich, C.C. Moser and P.L. Dutton, Role of the PEWY glutamate in hydroquinone-quinone oxidation-reduction catalysis in the Qo Site of cytochrome bc1, Biochemistry 45 (2006) 10492-503.

8> L. Esser, X. Gong, S. Yang, L. Yu, C.A. Yu and D. Xia, Surface-modulated motion switch: capture and release of iron-sulfur protein in the cytochrome bc1 complex, Proc Natl Acad Sci U S A 103 (2006) 13045-50.

7> A.R. Crofts, S. Lhee, S.B. Crofts, J. Cheng and S. Rose, Proton pumping in the bc1 complex: a new gating mechanism that prevents short circuits, Biochim Biophys Acta 1757 (2006) 1019-34.

6> T. Geyer and V. Helms, A spatial model of the chromatophore vesicles of Rhodobacter sphaeroides and the position of the Cytochrome bc1 complex, Biophys J 91 (2006) 921-6.

5> M. Elberry, K. Xiao, L. Esser, D. Xia, L. Yu and C.A. Yu, Generation, characterization and crystallization of a highly active and stable cytochrome bc1 complex mutant from Rhodobacter sphaeroides, Biochim Biophys Acta 1757 (2006) 835-40.

4> H. Nomura, S.B. Athauda, H. Wada, Y. Maruyama, K. Takahashi and H. Inoue, Identification and reverse genetic analysis of mitochondrial processing peptidase and the core protein of the cytochrome bc1 complex of Caenorhabditis elegans, a model parasitic nematode, J Biochem (Tokyo) 139 (2006) 967-79.

3> D.W. Lee, Y. Ozturk, A. Mamedova, A. Osyczka, J.W. Cooley and F. Daldal, A functional hybrid between the cytochrome bc1 complex and its physiological membrane-anchored electron acceptor cytochrome cy in Rhodobacter capsulatus, Biochim Biophys Acta 1757 (2006) 346-52.

2> V.P. Shinkarev, A.R. Crofts and C.A. Wraight, Spectral and kinetic resolution of the bc1 complex components in situ: a simple and robust alternative to the traditional difference wavelength approach, Biochim Biophys Acta 1757 (2006) 273-83.

1> B. Schilling, J. Murray, C.B. Yoo, R.H. Row, M.P. Cusack, R.A. Capaldi and B.W. Gibson, Proteomic analysis of succinate dehydrogenase and ubiquinol-cytochrome c reductase (Complex II and III) isolated by immunoprecipitation from bovine and mouse heart mitochondria, Biochim Biophys Acta 1762 (2006) 213-22.

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