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The oxidation-reduction potential of coenzyme I

Borsook, Henry (1940) The oxidation-reduction potential of coenzyme I. Journal of Biological Chemistry, 133 (2). pp. 629-630. ISSN 0021-9258. http://resolver.caltech.edu/CaltechAUTHORS:BORjbc40c

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Abstract

The oxidation-reduction potential of cozymase (diphosphopyridine nucleotide) was calculated from the free energies of formation of aqueous d-alanine and d-glutamic acid based on thermal data, and the equilibria measured by Wurmser and Filitti-Wurmser(1) for pyruvate + 2H+ + 2(e) ⇌ alanine + H2O, by Cohen(2) for α-ketoglutarate + alanine ⇌ d-glutamate and pyruvate, and by von Euler et al.(3) for the reaction α-ketoglutarate + NH+4 + reduced cozymase ⇌ glutamate + oxidized cozymase. The value for the potential so calculated is at 30° E’0 = -0.072 - 0.03 pH ± 0.0008 volt.


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http://www.jbc.org/cgi/reprint/133/2/629PublisherUNSPECIFIED
Additional Information:© 1940 American Society of Biological Chemists. Received for publication, February 21, 1940.
Record Number:CaltechAUTHORS:BORjbc40c
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:BORjbc40c
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:11646
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:17 Sep 2008 01:00
Last Modified:26 Dec 2012 10:17

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