Nitrate reductase from Penicillium chrysogenum. Purification and kinetic mechanism.
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چکیده
منابع مشابه
Regulation of Nitrate Uptake in Penicillium chrysogenum by Ammonium Ion.
A nitrate uptake system is induced (along with nitrate reductase) when NH(4) (+)-grown Penicillium chrysogenum is incubated with inorganic nitrate in synthetic medium in the absence of NH(4) (+). Nitrate uptake and nitrate reduction are probably in steady state in fully induced mycelium, but the ratios of the two activities are not constant during the induction period. Substrate concentrations ...
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The membrane-bound enzyme nitrate reductase from Escherichia coli has been solubilized and purified 112-fold. The purified enzyme appeared homogeneous by polyacrylamide gel electrophoresis and in the analytical ultracentrifuge. The molecular weight of the enzyme, as measured on an agarose column, was 720,000 and, as measured in the ultracentrifuge, was 773,600. The SO value was determined by se...
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Several Ascomycetes fungi are commonly used in bio-industries and provide available industrial residues for lectin extraction to be valuable. A lectin from Penicillium chrysogenum, named PeCL, was purified from a fungal culture using gel-filtration chromatography column. PeCL was found to be a mannose-specific lectin by haemagglutination activity towards rabbit erythrocyte cells and was visuali...
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Subcellular fractionation of cell-free extracts obtained by nitrogen cavitation showed that Penicillium chrysogenum Q176 contains a cytosolic as well as a mitochondrial homocitrate synthase activity. The cytosolic isoenzyme was purified about 500-fold, and its kinetic and molecular properties were investigated. Native homocitrate synthase shows a molecular mass of 155 +/- 10 kDa as determined b...
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ژورنال
عنوان ژورنال: Journal of Biological Chemistry
سال: 1981
ISSN: 0021-9258
DOI: 10.1016/s0021-9258(19)68889-7