Gel staining for nitrite reductase activity
A Random-Sequential Mechanism for Nitrite Binding and Active Site Reduction in Copper-containing Nitrite Reductase
... copper-containing nitrite reductase (NiR) contains one type-1 and one type-2 copper center per ...where nitrite is reduced to nitric ...and nitrite on the turnover rate in the presence of ...
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Strong modulation of nitrite reductase activity of cytoglobin by disulfide bond oxidation: Implications for nitric oxide homeostasis
... and nitrite reductase activities have been proposed to serve protective functions within the cell by scavenging or generating NO ...dioxygenase activity, similar to other globins, however, the ...
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The Enzyme Mechanism of Nitrite Reductase Studied at Single-Molecule Level
... enzyme activity in the bulk can be studied by Fo ¨rster resonance energy transfer (FRET) from an attached fluorescent label to the enzyme cofactor (10, ...copper-containing nitrite reductase (NiR) ...
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Method for Detecting NADPH Cytochrome P450 Reductase in Liver Microsomal Fractions by Using Native Polyacrylamide Gel Electrophoresis and NADPH Diaphorase Staining
... polyacrylamide gel electrophoresis (PAGE) and nicotinamide adenine dinucleotide phosphate (NADPH)-diaphorase staining, a simple method for detecting NADPH-cytochrome P450 reductase in tissue samples ...
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Enzymatic function of hemoglobin as a nitrite reductase that produces NO under allosteric control
... a nitrite reductase, with maximal NO generation rates occurring near the oxy-to-deoxy (R-to-T) allosteric structural transition of the ...of nitrite reduction by Hb deviates from second-order ...
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Substitution of Nitrite Reductase of Thermosynechococcus elongatus BP 1 by the Homologous Gene of Phormidium laminosum
... 4. Discussion Globally, studies related to bacterial transformation are targeted to eliminate, disrupt or insert a particular gene or group of genes within their genome or plasmids. In all cases, marker genes are needed ...
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METHOD OF MEASUREMENT OF NITRATE REDUCTASE ACTIVITY IN FIELD CONDITIONS
... Nitrate reductase activity is typically assayed in vivo by measuring nitrite production in tissue which has been vacuum infiltrated with buffered nitrate ...nitrate reductase assay was adapted ...
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Influence of Boron and Zinc on Nitrate and Nitrite Reductase Activity in Roots and Leaves, and Sulfur Containing Amino Acids, Protein and Oil Content in Seeds of Soybean [GLYCINE MAX (L.) Merr.]
... and nitrite reduction, protein and fat synthesis in this particular crop is ...and nitrite reduction in accordance with the need of plant depends on the activity of enzymes involved, which in turn ...
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Reversal of Sodium Nitrite Induced Impairment of Spontaneous Alteration by Aloe Vera Gel: Involvement of Cholinergic System
... Group IV and Group V. (n=6) were treated with Aloe vera gel (100 mg/kg and 200 mg/kg, p.o.) respectively for 10 days On the 11 th day the animals were euthanized by cervical dislocation carefully to avoid any ...
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Characterization of in Vivo Nitrate Reductase Activity in Triticum Vulgare Seedlings
... to nitrite in the ...NR activity in seven-day-old green seedlings increased linearly with the mass of the leaf tissue in the infiltration (assay) medium (5 ml total volume) up to 400 mg ...enzyme ...
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AND KINETIN ON NITRATE REDUCTASE AND NITRITE REDUCTASE IN THE LEAVES OF A TREE LEGUME (PARK/A JAVANICA MERR.)
... Effect of temperature variation on in vivo nitrate reductase activity in the leaves of control plants and in those sprayed once with optimum concentration of each plant hormone.. [r] ...
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Sol-Gel Encapsulation Method for Nitrite-Sensitive Membranes Doped with Tetraoctylammonium Bromide
... toward nitrite was approximately 54 mV/decade in between 10 -4 - 5x10 -1 M at 20 o ...toward nitrite over salicylate and other lipophilic anions was significantly improved, deviating from the Hofmeister ...
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Optimization of silver staining method in single cell gel electrophoresis (Comet assay)
... Abstract Introduction: The comet assay is one of the most common methods for measuring genotoxicity in cells. In 1984, Ostling and Johanson demonstrated movement of DNA strands when nuclei were exposed to an electric ...
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Effect of the Inorganic Nitrogen Source in the Expression of Nitrite Reductase (NirA) in Thermosynechococcus elongatus BP 1
... Combining former assays with peptide identification after mass spectrometry analysis of the bands sliced from SDS-PAGE gels corresponding to the 58 kDa and 44 kDa proteins confirms that the 44 kDa band corres- ponds to a ...
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Aldehyde reductase activity and blood aldo-keto reductase spectrum in adolescents with neuroendocrine obesity
... aldehyde-reductase activity and blood aldo-keto reductase spectrum has been performed in 13-15 and 16-18-years old adoles- cents with obesity to clear up the mechanisms of neuroendocrine obesity at ...
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GLUTATHIONE REDUCTASE ACTIVITY IN BLOOD AND BODY FLUIDS
... Extension of these ob- servations on the relationship of GR activity of serum, cerebrospinal fluid and serous effusions to various disease states will be necessary in order to evaluate t[r] ...
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Detection and diversity of copper containing nitrite reductase genes (nirK) in prokaryotic and fungal communities of agricultural soils
... Microorganisms are capable of producing N 2 and N 2 O gases as the end products of denitrification. Copper-containing nitrite reductase (NirK), a key enzyme in the microbial N-cycle, has been found in ...
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EVALUATION OF HISTO PATHOLOGICAL CHANGES IN THE MICE EXPOSED TO SODIUM NITRITE FOR LONG TERM BY USING HEMATOXYLIN AND EOSIN STAINING
... Sodium nitrite has unique pharmacological and industrial properties; it has been used in human and veterinary medicines as a hypoxic potentiates vasodilators and cyto- protective agent in ischemic conditions 1, 2 ...
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Dopaminergic Effects of Isobutyl Nitrite, Isoamyl Nitrite and Butyl Nitrite
... dopaminergic activity. There is a lack of data regarding the dopaminergic activity of alkyl nitrites in vitro, and the data presented here do not demonstrate the mechanisms of other nitrite ...
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Nitrate reductase activity in the subsurface waters of the Peru Current
... Because of the depth at which the activity occurred, its association with the secondary nitrite maxi- mum, and the previous occurrence of both nitrate depletion a[r] ...
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