Nitrogen metabolite repression of nitrate reductase in Neurospora crassa: effect of the gln-1a locus.
نویسندگان
چکیده
Nicotinamide adenine dinucleotide phosphate (reduced form)-nitrate reductase was freed from ammonium repression in a Neurospora crassa mutant having drastically lowered glutamine synthetase activity, gln-1a. The general phenomenon of nitrogen metabolite repression required glutamine or some aspect of glutamine metabolism.
منابع مشابه
Induction and repression of nitrate reductase in Neurospora crassa.
Synthesis of wild-type Neurospora crassa assimilatory nitrate reductase is induced in the presence of nitrate ions and repressed in the presence of ammonium ions. Effects of several Neurospora mutations on the regulation of this enzyme are shown: (i) the mutants, nit-1 and nit-3, involving separate lesions, lack reduced nicotinamide adenine dinucleotide (NADPH)-nitrate reductase activity and at...
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ورودعنوان ژورنال:
- Journal of bacteriology
دوره 139 2 شماره
صفحات -
تاریخ انتشار 1979