81 Species-specificity in metmyoglobin reduction

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Reduction of metmyoglobin derivatives by dithionite ion.

The rate constants for reduction by dithionite of a number of metmyoglobin species Mb+X(X=H2O, imidazole, OH-, F-, N3-, CNO-, SCN-, HCO2-, NO2-, and CN-) were measured at 25 degrees by stopped flow spectrophotometry. The dependence of the rate was [S2O42-]1/2, and the SO2- radical was considered to be the active reductant. Except for X=imidazole and CN-, reduction occurred through dissociation ...

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Reduction by Dithionite Ion of Adducts of Metmyoglobin

The rate and equilibrium constants for the formation of a number of metmyoglobin species Mb+X (X = imidazole, imidazole-H-, 1-methylimidazole, 2-methylimidazole, 4-6 troimidazole, 2-methyl-5-nitroimidazole, pyridine, 2-, 3-, and 4-picoline) and the rates of their reduction by dithionite have been measured at 25”. Several different kinds of kinetic behavior for the reduction were observed. In al...

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Reduction by dithionite ion of adducts of metmyoglobin with imidazole, pyridine, and derivatives.

The rate and equilibrium constants for the information of a number of metmyoglobin species Mb+X (X = imidazole, imidazole-H-, 1-methylimidazole, 2-methylimidazole, 4-nitroimidazole, 2-methyl-5-nitroimidazole, pyridine, 2-, 3-, and 4-picoline) and the rates of their reduction by dithionite have been measured at 25 degrees. Several different kinds of kinetic behavior for the reduction were observ...

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ژورنال

عنوان ژورنال: Journal of Animal Science

سال: 2019

ISSN: 0021-8812,1525-3163

DOI: 10.1093/jas/skz053.063