Results 151 to 160 of about 461,323 (194)
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Molecular and General Genetics MGG, 1981
The existence of a nitrate-reductase operon in the tryptophane region was deduced from the effects of prophage insertion in each of chlI and chlC genes and from transposition of the Mu-mediated host DNA fragments of F-prime. This operon appears to be polarized from chlC to chlI and the gene order in the region is trp -- chlI -- chlC -- purB.
Violaine Bonnefoy-Orth +3 more
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The existence of a nitrate-reductase operon in the tryptophane region was deduced from the effects of prophage insertion in each of chlI and chlC genes and from transposition of the Mu-mediated host DNA fragments of F-prime. This operon appears to be polarized from chlC to chlI and the gene order in the region is trp -- chlI -- chlC -- purB.
Violaine Bonnefoy-Orth +3 more
openaire +3 more sources
NADH-Ferric Reductase Activity Associated with Dihydropteridine Reductase
Biochemical and Biophysical Research Communications, 2000In mammals dietary ferric iron is reduced to ferrous iron for more efficient absorption by the intestine. Analysis of a pig duodenal membrane fraction revealed two NADH-dependent ferric reductase activities, one associated with a b-type cytochrome and the other not.
Andrew R. Cross +3 more
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Steroid 5 alpha-reductase: two genes/two enzymes.
Annual Review of Biochemistry, 1994BIOCHEMICAL PROPERTIES OF STEROID Sa-REDUCTASE . . . . . . . . . . . . 30 Protein Structure . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . 30 pH Optima . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
D. Russell, Jean D. Wilson
semanticscholar +1 more source
Functional domains of assimilatory nitrate reductases and nitrite reductases
Trends in Biochemical Sciences, 1990Biochemical investigation of nitrate assimilation enzymes spans the past four decades. With the molecular cloning of genes for nitrate reductases and nitrite reductases, exciting new prospects are developing for the study of these enzymes. As large, complex enzymes with multiple redox centers, these two types of reductases should help us gain ...
Wilbur H. Campbell, James R. Kinghorn
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2010
Quinone reductases are a large group of enzymes that catalyze the reduction of quinones. NQO1 and NQO2 are the major mammalian quinone reductases that catalyze the reduction of quinones to hydroquinones. Both NQO1 and NQO2 are FAD-containing homodimers with a similar catalytic mechanism and overlapping substrate specificities; however, major ...
D. Siegel, D. Ross
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Quinone reductases are a large group of enzymes that catalyze the reduction of quinones. NQO1 and NQO2 are the major mammalian quinone reductases that catalyze the reduction of quinones to hydroquinones. Both NQO1 and NQO2 are FAD-containing homodimers with a similar catalytic mechanism and overlapping substrate specificities; however, major ...
D. Siegel, D. Ross
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Glutathione reductase in evolution
Journal of Molecular Evolution, 1983The disulfide reducing activities of GSSG-and CoASSG-reductases were measured on partially purified extracts from a variety of prokaryotes and eukaryotes. Glutathione-reductase was found in varying amounts in all eukaryotes and prokaryotes, used in this study, with the exception of the two strict anaerobes Clostridium tartarivorum and Desulfovibrio ...
M. Ondarza, R. N. Ondarza, J. L. Rendón
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Biochimica et Biophysica Acta, 1979
M. Moron, J. Depierre, B. Mannervik
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M. Moron, J. Depierre, B. Mannervik
semanticscholar +1 more source
The role of glutathione reductase and related enzymes on cellular redox homoeostasis network.
Free Radical Biology & Medicine, 2016Narciso Couto, J. Wood, J. Barber
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