scholarly journals Studies on the active centre for the 3-hydroxy steroid-nicotinamide-adenine dinucleotide oxidoreductase activity of cortisone reductase

1972 ◽  
Vol 128 (4) ◽  
pp. 136P-137P
Author(s):  
W Gibb ◽  
J Jeffery
Keyword(s):  
Nicotinamide Adenine Dinucleotide ◽  
Nicotinamide Adenine ◽  
Active Centre ◽  
Oxidoreductase Activity ◽  
Hydroxy Steroid

scholarly journals Turkey liver xanthine dehydrogenase. Relation between nicotinamide-adenine dinucleotide oxidoreductase activity and the content of functional enzyme

1976 ◽  
Vol 157 (1) ◽  
pp. 283-285 ◽  
Author(s):  
I N Fhaoláin ◽  
M P Coughlan
Keyword(s):  
Methylene Blue ◽  
Nicotinamide Adenine Dinucleotide ◽  
Xanthine Dehydrogenase ◽  
Nicotinamide Adenine ◽  
Active Centre ◽  
Oxidoreductase Activity ◽  
Catalysed Oxidation

The turkey liver xanthine dehydrogenase-catalysed oxidation of NADH by Methylene Blue, by ferricyanide or by O2 is not dependent on the integrity of the active-centre persulphide groups. By contrast, the NADH-dichlorophenol-indophenol oxidoreductase and NADH-trinitrobenzenesulphonate oxidoreductase activities are directly proportional to the content of functional enzyme. These findings help to identify the sites of egress of electrons to oxidizing substrates.

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