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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 
 
 
 
 

Peroxidase-catalyzed-3-(glutathion-S-yl)-p,p'-biphenol formation.

Oxidation of p,p'-biphenol with horseradish peroxidase (HRP)-hydrogen peroxide in the presence of bovine serum albumin or with bone marrow cell homogenate-hydrogen peroxide resulted in the formation of reactive products that conjugate with protein. Glutathione prevented the protein binding. Glutathione readily reacted with p,p'-biphenoquinone, the principal oxidation product of p,p'-biphenol in the HRP-hydrogen peroxide system and resulted in the formation of several glutathione conjugates, p,p'-biphenol and small amounts of oxidized glutathione. The major glutathione conjugate was identified as 3-(glutathion-S-yl)-p,p'-biphenol by high field nuclear magnetic resonance and fast atom bombardment mass spectrometry. The same conjugate was formed in the bone marrow homogenate-hydrogen peroxide system. p,p'-Biphenoquinone reduction by glutathione to p,p'-biphenol without glutathione oxidation was explained by the rapid reduction of p,p'-biphenoquinone by 3-(glutathion-S-yl)-p,p'-biphenol.[1]

References

  1. Peroxidase-catalyzed-3-(glutathion-S-yl)-p,p'-biphenol formation. McGirr, L.G., Subrahmanyam, V.V., Moore, G.A., O'Brien, P.J. Chem. Biol. Interact. (1986) [Pubmed]
 
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