glutamine-synthetase
Glutamine accumulation and up regulation of glutamine synthetase activity in the swamp eel, Monopterus albus (Zuiew), exposed to brackish water
... that glutamine is the major organic osmolyte in M. albus . Glutamine content increased to a phenomenal level of >12 μ mol g –1 and >30 μ mol g –1 in the muscle and liver, respectively, of fish exposed ...
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Interaction of Glufosinate and Colletotrichum truncatum on Ammonia Levels and Glutamine Synthetase Activity in Hemp Sesbania
... 4.2. Glutamine Synthetase Assay and Localization on PAGE Gels C. truncatum treatment of hemp sesbania did not cause significant effects on GS activity until after 40 h, a time when hypocotyls lose their ...
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Induction of carbamoyl phosphate synthetase III and glutamine synthetase mRNA during confinement stress in gulf toadfish (Opsanus beta)
... require glutamine as its substrate, but instead feeds ammonia nitrogen directly into carbamoyl phosphate and urea synthesis (for a review, see Anderson, ...species, glutamine synthetase occupies a ...
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THE GLN1 LOCUS OF SACCHAROMYCES CEREVISIAE ENCODES GLUTAMINE SYNTHETASE
... Dosage studies of gln 1 alleles: Glutamine synthetase is repressed during growth on Ggln medium, derepressed 30- to 40-fold on GN and derepressed approx- imately 100-fold du[r] ...
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A second glutamine synthetase gene with expression in the gills of the gulf toadfish (Opsanus beta)
... Western blots (Fig.·1) of SDS gels demonstrated that GSases in all tissues except muscle appear as a single subunit band with a molecular mass of approximately 49.4·kDa. This value differs slightly from the 42.3–42.4·kDa ...
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The marble goby oxyeleotris marmoratus activates hepatic glutamine synthetase and detoxifies ammonia to glutamine during air exposure
... to glutamine (Levi et ...hepatic glutamine synthetase activity was found to be significantly different from control ...pre-existing glutamine synthetase is sufficient to account for the ...
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Regulation of expression of the glutamine synthetase GLN [alpha] gene of phaseolus vulgaris L
... Gebhardt C, Oliver J E, Forde B G, Saarelainen R, Miflin B J 1986 Primary structure and differential expression of glutamine synthetase genes in nodules roots and leaves of Phaseolus vul[r] ...
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Urea transporter and glutamine synthetase regulation and localization in gulf toadfish gill
... of glutamine synthetase (GS) activity in the liver, an important enzyme that shuttles ammonia as glutamine into the piscine O-UC, ultimately resulting in an increase in urea production and ...
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Pathways of inorganic nitrogen assimilation in chemoautotrophic bacteria marine invertebrate symbioses: expression of host and symbiont glutamine synthetase
... Activities of inorganic nitrogen assimilation enzymes The activities of glutamine synthetase (GS), glutamate dehydrogenase (GDH) and nitrate reductase (NR) were measured in several chemoautotrophic ...
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Evolution of glutamine synthetase in vertebrates: multiple glutamine synthetase genes expressed in rainbow trout (Oncorhynchus mykiss)
... Taylor et al. (2001) examined 27 groups of orthologous genes (i.e. homologous genes, derived from a common ancestral gene, which are found in different species), each including two zebrafish genes as well as genes from ...
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The freshwater Amazonian stingray, Potamotrygon motoro, up regulates glutamine synthetase activity and protein abundance, and accumulates glutamine when exposed to brackish (15‰) water
... up-regulate glutamine synthetase (GS) activity and protein abundance, and accumulate glutamine during a progressive transfer from freshwater to brackish (15‰) water with daily ...glutamate, ...
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Maize glutamine synthetase cDNAs: isolation by direct genetic selection in Escherichia coli.
... Maize glutamine synthetase cDNA clones were isolated by genetic selection for functional rescue of an Escherichia coli AglnA mutant growing on medium lacking glutamine..[r] ...
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Urea synthesis in the African lungfish Protopterus dolloi hepatic carbamoyl phosphate synthetase III and glutamine synthetase are upregulated by 6 days of aerial exposure
... total free amino acid content. This indirectly confirms that the specimen had reduced its rates of proteolysis and/or amino acid catabolism to suppress endogenous ammonia production. Simultaneously, there were ...
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Characterisation and expression of the glutamine synthetase g1n α gene of french bean
... Histochemical localisation of GUS activity in the vascular tissue of a transgenic gIn-a: :uidA tobacco plant leaf 24 hours after mechanical wounding... Histochemical localisation of GUS [r] ...
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Structure and expression of glutamine synthetase in root nodules of Phaseolus Vulgaris L
... sucrose synthetase genes, which encode kinetically differing subunits (Echt and Chourey, 1985), whose assembly has highlighted the role of temporal and spatial gene expression in determining isoform composition ...
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Leaf-Atmosphere NH3 Exchange in Barley Mutants with Reduced Activities of Glutamine Synthetase
... lntact shoot parameters: leaf area, leaf tissue NH,+ concentrations, NH, emission at 24"C, and NH, compensation points at 25°C for wild-type barley plants and two mutants with 66 and 47%[r] ...
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Studies of glutamine synthetase in lotus species and the occurrence of root GS2 in other legumes
... The four temperate species in cluster 3 had higher than average activities of both enzymes in the root, but although the GS activity was also higher than the mean in the [r] ...
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Exposure to air, but not seawater, increases the glutamine content and the glutamine synthetase activity in the marsh clam Polymesoda expansa
... any glutamine biosynthetic capacity (Wijsman et ...of glutamine synthesis (Rees et ...rapid glutamine synthesis and turnover occurs in species that excrete reasonable amounts of purines (terrestrial ...
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Role of glutamine synthetase in angiogenesis beyond glutamine synthesis
... 159 GLUTAMINE PRODUCTION BY ENDOTHELIAL GS 160 To explore whether the migration defect was attributable to reduced de novo glutamine 161 synthesis, we measured the glutamine synthesizing[r] ...
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Identification and characterization of the nitrate assimilation genes in the isolate of Streptomyces griseorubens JSD-1
... Background: Streptomyces griseorubens JSD-1 is a novel actinomycete isolated from soil that can utilize nitrate as its sole nitrogen source for growth and these nitrate assimilation genes active in this biotransformation ...
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