Literature DB >> 1965780

The kinetics of electron entry in cytochrome c oxidase.

F Malatesta1, G Antonini, P Sarti, B Vallone, M Brunori.   

Abstract

The kinetics of electron entry in beef heart cytochrome c oxidase have been studied by stopped-flow spectroscopy following chemical modification of the CuA site with mercurials. In this derivative CuA is no longer reducible by cytochrome c while cytochrome alpha may accept electrons from the latter with rates comparable to the native enzyme. The results indicate that CuA is not the exclusive electron entry site in cytochrome c oxidase.

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Year:  1990        PMID： 1965780     DOI： 10.1007/bf01179517

Source DB:  PubMed          Journal:  Biol Met        ISSN： 0933-5854


  14 in total

1.  The reaction of ferrocytochrome c with cytochrome oxidase: A new look.

Authors:  L -E. Andréasson; B G. Malmström; C Strömberg; T Vänngård
Journal:  FEBS Lett       Date:  1972-12-15       Impact factor: 4.124

2.  Kinetic studies on the reaction between cytochrome c oxidase and ferrocytochrome c.

Authors:  M T Wilson; C Greenwood; M Brunori; E Antonini
Journal:  Biochem J       Date:  1975-04       Impact factor: 3.857

3.  Characterization of the reaction between ferrocytochrome c and cytochrome c oxidase.

Authors:  L E Andréasson
Journal:  Eur J Biochem       Date:  1975-05-06

4.  Studies on partially reduced mammalian cytochrome oxidase reactions with ferrocytochrome c.

Authors:  C Greenwood; T Brittain
Journal:  Biochem J       Date:  1976-09-01       Impact factor: 3.857

Review 5.  Structure and function of cytochrome oxidase: a second look.

Authors:  M Brunori; G Antonini; F Malatesta; P Sarti; M T Wilson
Journal:  Adv Inorg Biochem       Date:  1988

6.  Structural implications derived from the analysis of electron paramagnetic resonance spectra of natural and artificial copper proteins.

Authors:  J Peisach; W E Blumberg
Journal:  Arch Biochem Biophys       Date:  1974-12       Impact factor: 4.013

7.  Determination of heme a concentration in cytochrome preparations by hemochromogen method.

Authors:  M Morrison; S Horie
Journal:  Anal Biochem       Date:  1965-07       Impact factor: 3.365

8.  Influence of detergent polar and apolar structure upon the temperature dependence of beef heart cytochrome c oxidase activity.

Authors:  N C Robinson; J Neumann; D Wiginton
Journal:  Biochemistry       Date:  1985-10-22       Impact factor: 3.162

9.  Topological studies of monomeric and dimeric cytochrome c oxidase and identification of the copper A site using a fluorescence probe.

Authors:  J Hall; A Moubarak; P O'Brien; L P Pan; I Cho; F Millett
Journal:  J Biol Chem       Date:  1988-06-15       Impact factor: 5.157

10.  Chemical modification of the CuA center in cytochrome c oxidase by sodium p-(hydroxymercuri)benzoate.

Authors:  J Gelles; S I Chan
Journal:  Biochemistry       Date:  1985-07-16       Impact factor: 3.162
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