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Concentration of NADH-cytochrome B5 Reductase in Erythrocytes of Normal and Methemoglobinemic Individuals Measured with a Quantitative Radioimmunoblotting Assay

Overview
Journal J Clin Invest
Specialty General Medicine
Date 1987 Nov 1
PMID 3680497
Citations 7
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Abstract

The activity of NADH-cytochrome b5 reductase (NADH-methemoglobin reductase) is generally reduced in red cells of patients with recessive hereditary methemoglobinemia. To determine whether this lower activity is due to reduced concentration of an enzyme with normal catalytic properties or to reduced activity of an enzyme present at normal concentration, we measured erythrocyte reductase concentrations with a quantitative radioimmunoblotting method, using affinity-purified polyclonal antibodies against rat liver microsomal reductase as probe. In five patients with the "mild" form of recessive hereditary methemoglobinemia, in which the activity of erythrocyte reductase was 4-13% of controls, concentrations of the enzyme, measured as antigen, were also reduced to 7-20% of the control values. The concentration of membrane-bound reductase antigen, measured in the ghost fraction, was similarly reduced. Thus, in these patients, the reductase deficit is caused mainly by a reduction in NADH-cytochrome b5 reductase concentration, although altered catalytic properties of the enzyme may also contribute to the reduced enzyme activity.

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References
1.
Daddona P, Frohman M, Kelley W . Radioimmunochemical quantitation of human adenosine deaminase. J Clin Invest. 1979; 64(3):798-803. PMC: 372184. DOI: 10.1172/JCI109526. View

2.
Morelli A, Benatti U, Gaetani G, De Flora A . Biochemical mechanisms of glucose-6-phosphate dehydrogenase deficiency. Proc Natl Acad Sci U S A. 1978; 75(4):1979-83. PMC: 392466. DOI: 10.1073/pnas.75.4.1979. View

3.
Switzer 3rd R, Merril C, Shifrin S . A highly sensitive silver stain for detecting proteins and peptides in polyacrylamide gels. Anal Biochem. 1979; 98(1):231-7. DOI: 10.1016/0003-2697(79)90732-2. View

4.
Borgese N, Gaetani S . Site of synthesis of rat liver NADH--cytochrome b5 reductase, an integral membrane protein. FEBS Lett. 1980; 112(2):216-20. DOI: 10.1016/0014-5793(80)80183-9. View

5.
Borgese N, Meldolesi J . Localization and biosynthesis of NADH-cytochrome b5 reductase, an integral membrane protein, in rat liver cells. I. Distribution of the enzyme activity in microsomes, mitochondria, and golgi complex. J Cell Biol. 1980; 85(3):501-15. PMC: 2111468. DOI: 10.1083/jcb.85.3.501. View