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.

DNA and graphene as a new efficient platform for entrapment of methylene blue (MB): Studies of the electrocatalytic oxidation of β-nicotinamide adenine dinucleotide

2013 ◽  
Vol 111 ◽  
pp. 543-551 ◽  
Author(s):  
Grasyelle Maria Mota Ferreira ◽  
Fernando Mota de Oliveira ◽  
Fernando Roberto Figueiredo Leite ◽  
Camila Marchetti Maroneze ◽  
Lauro Tatsuo Kubota ◽  
...  
Keyword(s):  
Methylene Blue ◽  
Nicotinamide Adenine Dinucleotide ◽  
Electrocatalytic Oxidation ◽  
Nicotinamide Adenine

scholarly journals The regulation of xanthine oxidase. Inhibition by reduced nicotinamide–adenine dinucleotide of rat liver xanthine oxidase type D and of chick liver xanthine dehydrogenase

1970 ◽  
Vol 117 (1) ◽  
pp. 97-100 ◽  
Author(s):  
E. Della Corte ◽  
F. Stirpe
Keyword(s):  
Xanthine Oxidase ◽  
Rat Liver ◽  
Nicotinamide Adenine Dinucleotide ◽  
Enzyme Activities ◽  
Xanthine Dehydrogenase ◽  
Nicotinamide Adenine ◽  
Type D ◽  
Oxidase Inhibition ◽  
Xanthine Oxidase Inhibition ◽  
Reduced Nicotinamide Adenine Dinucleotide

1. Rat liver xanthine oxidase type D (NAD+-dependent) and chick liver xanthine oxidase are inhibited by NADH, which competes with NAD+. 2. The addition of a NADH-reoxidizing system in the assay of these enzyme activities is proposed. 3. Rat liver xanthine oxidase type O (oxygen-dependent) is not affected by NADH.

Sign in / Sign up

Export Citation Format

Share Document