The thermochemical characterization of sodium dithionite, flavin mononucleotide, flavin-adenine dinucleotide and methyl and benzyl viologens as low-potential reductants for biological systems
- 1 October 1975
- journal article
- Published by Portland Press Ltd. in Biochemical Journal
- Vol. 152 (1), 33-37
- https://doi.org/10.1042/bj1520033
Abstract
The heat of reaction (ΔH) of Fe(CN)63−, Methyl Viologen, FMN and FAD with S2O42− in aqueous buffer solutions was measured calorimetrically. In addition ΔH values for reduction of Fe(CN)63-, FMN and FAD by reduced Methyl Viologen were determined. The resulting calorimetric data and corresponding E0′ values were combined to yield thermodynamic data for these simple reducing agents in a form useful for applications to biological reactions. Thermodynamic data for the reduction of spinach ferredoxin are also presented.Keywords
This publication has 7 references indexed in Scilit:
- The enthalpy change for the reduction of nicotinamide–adenine dinucleotideBiochemical Journal, 1974
- High-Energy Electrons in BacteriaPublished by Elsevier ,1971
- Enthalpy change accompanying the oxidation of ferrocytochrome c in the pH range 6-11 at 25°Biochemistry, 1969
- Thermodynamic aspects of the potassium hexacyano-ferrate(III)-(II) system. II. Reduction potentialThe Journal of Physical Chemistry, 1967
- The nitrogenase system from Azotobacter: two-enzyme requirement for N2 reduction, ATP-dependent H2 evolution, and ATP hydrolysis.Proceedings of the National Academy of Sciences, 1966
- Cytochrome cAdvances in protein chemistry, 1966
- NITROGEN FIXATION: HYDROSULFITE AS ELECTRON DONOR WITH CELL-FREE PREPARATIONS OF AZOTOBACTER VINELANDII AND RHODOSPIRILLUM RUBRUMProceedings of the National Academy of Sciences, 1965