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64410
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Showing 1-26 of 26 results for "64410" within Papers
Journal of chromatography. A, 1593, 63-72 (2019-02-05)
An O-[2-(methacryloyloxy)-ethylcarbamoyl]-10,11-dihydroquinidine (MQD)-silica hybrid monolithic column was prepared by a facile "one-step" strategy within a 100 μm I.D. capillary. The influence of the methanol, ethylene glycol and water volume ratio, reaction temperature and time, cetyltrimethylammonium bromide and MQD monomers content
Origins of life and evolution of the biosphere : the journal of the International Society for the Study of the Origin of Life, 41(3), 201-212 (2010-11-11)
Original extracts from an unpublished 1958 experiment conducted by the late Stanley L. Miller were recently found and analyzed using modern state-of-the-art analytical methods. The extracts were produced by the action of an electric discharge on a mixture of methane
Amino acids, 24(1-2), 135-139 (2003-03-08)
An in vitro experiment was conducted to test the ability of mixed rumen bacteria (B), protozoa (P), and their mixture (BP) to utilize the oxidized forms of methionine (Met) e.g., methionine sulfoxide (MSO), methionine sulfone (MSO(2)). Rumen contents were collected
Rapid communications in mass spectrometry : RCM, 10(15), 1905-1910 (1996-01-01)
The positive- and negative-ion collision-induced dissociation spectra of peptides containing methionine, methionine sulphoxide and methionine sulphone have been studied. Characteristic fragmentations were identified and evaluated as possible indicators for the presence of oxidized methionine residues in peptides. It was found
Journal of inorganic biochemistry, 121, 1-9 (2013-01-15)
A potentiometric, spectroscopic (UV-visible, CD and EPR) and electrospray ionization mass spectrometric (ESI-MS) study of Cu(II) binding to the neurokinin A with point mutation (S5A) (ANKA), His-Lys-Thr-Asp-Ala(5)-Phe-Val-Gly-Leu-Met-NH2 and its N-acethyl derivative (Ac-ANKA), Ac-His-Lys-Thr-Asp-Ala(5)-Phe-Val-Gly-Leu-Met-NH2 were carried out. For the ANKA and
Journal of general microbiology, 133(7), 1667-1674 (1987-07-01)
A glycine-resistant Neurospora crassa mutant (am-132;glyr), derived from the am-132 mutant, was isolated and characterized. [am-132 itself has a deletion in the structural gene for NADP-dependent glutamate dehydrogenase (GDH).] This new mutation also conferred resistance to serine and methionine sulphoximine
The Journal of biological chemistry, 285(43), 33315-33323 (2010-07-08)
Methionine sulfoxide reductases protect cells by repairing oxidatively damaged methionine residues in proteins. Here, we report the first three-dimensional structure of the mammalian selenoprotein methionine sulfoxide reductase B1 (MsrB1), determined by high resolution NMR spectroscopy. Heteronuclear multidimensional spectra yielded NMR
Journal of chromatography, 327, 1-7 (1985-06-26)
A high-performance liquid chromatography system is presented which allows separation and quantitation (in the range 4-1000 pmol) of all common phenylthiohydantoin amino acids, including derivatives of 4-hydroxyproline, methionine sulfone and three differently modified forms of cysteine. By showing the actual
Amino acids, 33(4), 607-613 (2007-03-06)
In maize seedlings, chilling causes a reduction of glutamine synthetase (GS) activity, while acclimation protects GS (manuscript submitted). Since ROS can oxidize both protein-bound and free Met to methionine sulfoxide (MSO) and further to methionine sulfone (MSO2, a GS inhibitor)
Biochemistry, 46(7), 1829-1839 (2007-01-27)
The gene PA4866 from Pseudomonas aeruginosa is documented in the Pseudomonas genome database as encoding a 172 amino acid hypothetical acetyltransferase. We and others have described the 3D structure of this protein (termed pita) [Davies et al. (2005) Proteins: Struct.
Bioscience, biotechnology, and biochemistry, 73(5), 1000-1006 (2009-05-08)
Phosphinothricin (PPT) is the active ingredient in bialaphos, which specifically inhibits glutamine synthetase in land plants. We isolated a novel PPT-resistant gene from a soil bacterium, Nocardia sp., and characterized it. The encoded protein, consisting of 177 amino acids, showed
Regulation of the degradation of 125 I-labeled glutamine synthetase introduced into cultured hepatoma cells by erythrocyte ghost-mediated injection.
FEBS letters, 128(1), 63-66 (1981-06-01)
Journal of protein chemistry, 14(2), 59-72 (1995-02-01)
The catalase of Proteus mirabilis PR, a peroxide-resistant (PR) mutant of Proteus mirabilis, binds strongly NADPH, which is a unique property among known bacterial catalases. The enzyme subunit consists of 484 amino acid residues for a mass of 55,647 daltons.
Bioscience, biotechnology, and biochemistry, 71(12), 3055-3062 (2007-12-12)
In addition to serine (L:D = 68:32), methionine sulfoxide (MSO), L-methionine sulfone (L-MSO(2)), and disodium gamma-cyclic di-L-glutamate were identified in a methanol extract of Bombyx mori L. pupae. MSO was isolated in a diastereomeric mixture of L(+)- and D(+)-MSO in
Protein science : a publication of the Protein Society, 13(11), 2979-2991 (2004-10-23)
Glutamate synthase (GltS) is a complex iron-sulfur flavoprotein that catalyzes the reductive transfer of L-glutamine amide group to the C2 carbon of 2-oxoglutarate yielding two molecules of L-glutamate. Molecular dynamics calculations in explicit solvent were carried out to gain insight
The British journal of nutrition, 46(1), 77-86 (1981-07-01)
1. The relative potencies of three lysine, one tryptophan and six methionine analogues to their corresponding l-amino acids were determined. 2. Male poults, 9 d of age, were used in five 14 d experiments. Experimental diets were formed by adding
Structure (London, England : 1993), 8(12), 1299-1308 (2001-02-24)
The complex iron-sulfur flavoprotein glutamate synthase catalyses the reductive synthesis of L-glutamate from 2-oxoglutarate and L-glutamine, a reaction in the plant and bacterial pathway for ammonia assimilation. The enzyme functions through three distinct active centers carrying out L-glutamine hydrolysis, conversion
Asian-Australasian journal of animal sciences, 30(8), 1150-1159 (2017-02-12)
This study was conducted to evaluate various wheat supplementation levels on growth performance, blood profiles, nutrient digestibility, and pork quality in growing-finishing pigs. A total of 120 growing pigs ([Yorkshire×Landrace]×Duroc), with an average 27.75± 1.319 kg body weight, were used
An association between glutamine synthetase activity and adipocyte differentiation in cultured 3T3-L1 cells.
Archives of biochemistry and biophysics, 209(2), 486-503 (1981-07-01)
Effects of singlet oxygen on the biological activity of DNA and its involvement in single strand-break formation.
Basic life sciences, 49, 473-477 (1988-01-01)
Journal of pharmaceutical analysis, 10(1), 70-77 (2020-03-04)
An analytical methodology based on an O-[2-(methacryloyloxy)-ethylcarbamoyl]-10,11-dihydroquinidine (MQD)-silica hybrid monolithic column was developed for the enantioseparation of 9-fluorenylmethoxycarbonyl (FMOC) derivatized amino acids by nano-liquid chromatography. The mobile phase was optimized including the apparent pH, content of ACN, and concentration of
Journal of bacteriology, 197(2), 314-325 (2014-11-05)
Protein and small-molecule acylation reactions are widespread in nature. Many of the enzymes catalyzing acylation reactions belong to the Gcn5-related N-acetyltransferase (GNAT; PF00583) family, named after the yeast Gcn5 protein. The genome of Salmonella enterica serovar Typhimurium LT2 encodes 26
Journal of basic microbiology, 25(1), 29-37 (1985-01-01)
The dermatophyte Microsporum gypseum was cultivated on a glucose-arginine medium to which on out of six sulfur-containing amino acids was added (L-cystine, L-djenkolic acid, DL-lanthionine DL-homocystine, L-methionine, or L-methionine-sulfone at a concentration of 5 mM with respect to sulfur content).
Periodate oxidation of methionine in proteins.
Analytical biochemistry, 126(1), 183-189 (1982-10-01)
Biochemical and biophysical research communications, 123(2), 431-437 (1984-09-17)
Addition of NH4Cl at low concentrations to Azotobacter chroococcum cells caused an immediate cessation of nitrogenase activity, which was recovered once the added NH+4 was exhausted from the medium. In the presence of inhibitors of ammonium assimilation, such as L-methionine-DL-sulfoximine
Agents and actions, 31(1-2), 110-112 (1990-08-01)
The oxidation of methionine in peptides is often associated with the loss of biological activity. Since methionine showed good antiinflammatory activity, its oxidized products methionine sulfoxide and methionine sulfone were tested. The sulfone was more active than the sulfoxide although
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