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Michaela Frybortova et al.
Journal of inorganic biochemistry, 126, 46-54 (2013-06-19)
In order to shed light on the mechanism that underlies activity of bifunctional mononuclear Pt(II) analogs of transplatin we examined in the present work a DNA binding mode of the analog of transplatin, namely trans-[Pt(CH3NH2)2Cl2], in which NH3 groups were
Alejandro Cruz et al.
Molecules (Basel, Switzerland), 17(9), 10178-10191 (2012-08-28)
Symmetric and non-symmetric 2-(N-H, N-methyl, N-ethylenyl and N-aryl)guanidinebenzothiazoles were synthesized from the reaction of ammonia, methylamine, pyrrolidine and aniline with dimethyl benzo[d]thiazol-2-yl-carbonodithioimidate as intermediate. The products were characterized by ¹H-, ¹³C-NMR spectroscopy and three of them by X-ray diffraction analysis.
Nobuo Ochiai et al.
Journal of agricultural and food chemistry, 63(30), 6698-6706 (2015-07-15)
A method for analysis of hop-derived polyfunctional thiols, such as 4-sulfanyl-4-methylpentan-2-one (4S4M2Pone), 3-sulfanylhexan-1-ol (3SHol), and 3-sulfanylhexyl acetate (3SHA), in beer, hop water extract, and wort at nanogram per liter levels was developed. The method employed stir bar sorptive extraction with
Leandro R Soria et al.
FEBS letters, 588(9), 1686-1691 (2014-03-20)
We recently reported that hepatocyte mitochondrial aquaporin-8 (mtAQP8) channels facilitate the uptake of ammonia and its metabolism into urea. Here we studied the effect of bacterial lipopolysaccharides (LPS) on ammonia-derived ureagenesis. In LPS-treated rats, hepatic mtAQP8 protein expression and diffusional
Wei Wan et al.
Biochimica et biophysica acta, 1844(6), 1059-1070 (2014-03-19)
The genetic incorporation of the 22nd proteinogenic amino acid, pyrrolysine (Pyl) at amber codon is achieved by the action of pyrrolysyl-tRNA synthetase (PylRS) together with its cognate tRNA(Pyl). Unlike most aminoacyl-tRNA synthetases, PylRS displays high substrate side chain promiscuity, low
Thomas S Hofer et al.
Molecular bioSystems, 8(11), 2891-2900 (2012-08-01)
Molecular dynamics simulations have been performed to investigate the binding of tris(hydroxymethyl)-aminomethane to the surface of the core domain of the mouse cellular tumor antigen p53 employing the GROMOS and 53A6 force field parameter sets. A close investigation of the
Martina Ott et al.
Glia, 63(1), 78-90 (2014-08-19)
Tryptophan catabolism is increasingly recognized as a key and druggable molecular mechanism active in cancer, immune, and glioneural cells and involved in the modulation of antitumor immunity, autoimmunity and glioneural function. In addition to the pivotal rate limiting enzyme indoleamine-2,3-dioxygenase
Sam Kaitaniemi et al.
PloS one, 8(1), e54151-e54151 (2013-01-26)
Vascular Adhesion Protein-1 (VAP-1) is an endothelial adhesion molecule belonging to the primary amine oxidases. Upon inflammation it takes part in the leukocyte extravasation cascade facilitating transmigration of leukocytes into the inflamed tissue. Screening of a human lung cDNA library
De-Bin Qin et al.
Journal of experimental botany, 71(16), 5087-5097 (2020-05-23)
Protein kinase-mediated phosphorylation modulates the absorption of many nutrients in plants. CALCIUM-DEPENDENT PROTEIN KINASES (CPKs) are key players in plant signaling to translate calcium signals into diverse physiological responses. However, the regulatory role of CPKs in ammonium uptake remains largely
Raymond J Ritchie
Microbial ecology, 65(1), 180-196 (2012-09-04)
Ammonia is the preferred nitrogen source for many algae including the cyanobacterium Synechococcus elongatis (Synechococcus R-2; PCC 7942). Modelling ammonia uptake by cells is not straightforward because it exists in solution as NH(3) and NH (4) (+) . NH(3) is
A R Sarika et al.
Applied biochemistry and biotechnology, 167(5), 1280-1289 (2012-05-05)
The bacteriocins of lactic acid bacteria have considerable potential for biopreservation. The Lactococcus lactis strain PSY2 (GenBank account no. JF703669) isolated from the surface of marine perch Perca flavescens produced antibacterial activity against pathogenic and spoilage-causing Gram-positive and Gram-negative bacteria
Liangcai Zhao et al.
Journal of ethnopharmacology, 142(3), 647-656 (2012-06-13)
Zhibai Dihuang Pill (ZDP) is one of ancient traditional Chinese medicines (TCMs), which is usually used for the treatment of kidney deficiency for thousands of years in China. Traditional Chinese medicines (TCMs) usually operate in vivo through multi-components, multi-ways and
Nadja Mannowetz et al.
PloS one, 7(7), e41030-e41030 (2012-08-23)
To reach the egg in the ampulla, sperm have to travel along the female genital tract, thereby being dependent on external energy sources and substances to maintain and raise the flagellar beat. The vaginal fluid is rich in lactate, whereas
Shubin Liu
The journal of physical chemistry. A, 117(5), 962-965 (2013-01-19)
Bond rotations are common and important in molecular studies such as drug design and enzymatic reactions. Steric hindrance and hyperconjugation are often borrowed to justify the origin of bond rotation barriers. However, there exists no consensus, even for as simple
Tobias Glaser et al.
The journal of physical chemistry letters, 6(15), 2913-2918 (2015-08-13)
The organic cation and its interplay with the inorganic lattice underlie the exceptional optoelectronic properties of organo-metallic halide perovskites. Herein we report high-quality infrared spectroscopic measurements of methylammonium lead halide perovskite (CH3NH3Pb(I/Br/Cl)3) films and single crystals at room temperature, from
Xiaomei Gong et al.
Molecules (Basel, Switzerland), 20(5), 8928-8940 (2015-05-21)
In this research, a sensitive and reliable LC-MS/MS method was developed and applied to determine the concentration of triptolide in rat plasma, microsomes, and cell incubation media. The absolute oral bioavailability of triptolide is 63.9% at a dose of 1
U Eletxigerra et al.
Analytica chimica acta, 838, 37-44 (2014-07-30)
An amperometric immunoassay for the determination of tumor necrosis factor alpha (TNFα) protein biomarker in human serum based on the use of magnetic microbeads (MBs) and disposable screen-printed carbon electrodes (SPCEs) has been developed. The specifically modified microbeads were magnetically
Tatiana Y Dinarieva et al.
Canadian journal of microbiology, 58(4), 516-522 (2012-03-30)
Methylamine dehydrogenase (MADH) and azurin were purified from the periplasmic fraction of the methylamine-grown obligate methylotroph Methylobacillus flagellatus KT. The molecular mass of the purified azurin was 16.3 kDa, as measured by SDS-PAGE, or 13 920 Da as determined by
Lulu Shangguan et al.
Journal of chromatography. A, 1388, 158-166 (2015-03-03)
The bottom-up strategy of proteomic profiling study based on mass spectrometer (MS) has drawn high attention. However, conventional solution-based digestion could not satisfy the demands of highly efficient and complete high throughput proteolysis of complex samples. We proposed a novel
April D Lewoczko et al.
Physical chemistry chemical physics : PCCP, 15(13), 4707-4714 (2013-02-21)
Using density functional theory calculations, we report on the adsorption of methylamine on gold and compare its adsorption to a selection of alkylamines, methanol and methanethiol. On the (111) surface, the amines, thiol and alcohol bind in the ontop site
Louis P Lee et al.
Journal of computational chemistry, 34(6), 429-444 (2012-10-16)
First principles electronic structure calculations are typically performed in terms of molecular orbitals (or bands), providing a straightforward theoretical avenue for approximations of increasing sophistication, but do not usually provide any qualitative chemical information about the system. We can derive
Yongqian Zhang et al.
Analytica chimica acta, 752, 106-111 (2012-10-30)
Both endogenous and exogenous methylamine have been found to be involved in many human disorders. The quantitative assessment of methylamine has drawn considerable interest in recent years. Although there have been many papers about the determination of methylamine, only a
Sanjeev Kumar et al.
PloS one, 7(11), e48982-e48982 (2012-11-08)
Chronological aging of yeast cells is commonly used as a model for aging of human post-mitotic cells. The yeast Saccharomyces cerevisiae grown on glucose in the presence of ammonium sulphate is mainly used in yeast aging research. We have analyzed
Sandra Grès et al.
Journal of physiology and biochemistry, 68(4), 651-662 (2012-05-02)
Semicarbazide-sensitive amine oxidase (SSAO) is a transmembrane enzyme that metabolizes primary amines from endogenous or dietary origin. SSAO is highly expressed in adipose, smooth muscle and endothelial cells. In each of these cell types, SSAO is implicated in different biological
Jing-Jing Fang et al.
Waste management (New York, N.Y.), 32(7), 1401-1410 (2012-04-07)
This study investigated the odor compounds from different areas in a landfill site, which included the municipal solid waste (MSW)-related area, the leachate-related area and the sludge-related area. Nine sampling points were placed and 35 types of odorous substances were
Fadong Wei et al.
Journal of nanoscience and nanotechnology, 13(6), 4223-4227 (2013-07-19)
The interactions between methylamine or acetic acid with the Ni(n) (n = 1,...,6) in triplet clusters were examined at the B3LYP/6-31G(d, p) and LANL2TZ+ level. The structural stability, interacting strength and the charge transferring properties of the different interacting complexes
Nicolas Fleury-Brégeot et al.
Chemistry (Weinheim an der Bergstrasse, Germany), 18(31), 9564-9570 (2012-07-07)
Ammoniomethyl trifluoroborates are very powerful reagents that can be used to access biologically relevant aryl- and heteroaryl-methylamine motifs via Suzuki-Miyaura cross-couplings. Until now, this method was limited to the production of tertiary and primary amines. The synthesis of a large
Daisuke Tsuchida et al.
Journal of the American Society for Mass Spectrometry, 25(10), 1747-1754 (2014-07-30)
Information on the higher-order structure is important in the development of biopharmaceutical drugs. Recently, hydrogen/deuterium exchange coupled with mass spectrometry (HDX-MS) has been widely used as a tool to evaluate protein conformation, and unique automated systems for HDX-MS are now
Der-Yen Lee et al.
Journal of chromatography. A, 1388, 60-68 (2015-03-04)
Electrospray ionization (ESI) is the most useful interface for mass spectrometry associated with liquid chromatography (LC). However, analyses of polar metabolites become a challenge because the high polarity impairs the separation of metabolites in reversed-phase liquid chromatography and ionization of
Michiya Matsusaki et al.
Biochemical and biophysical research communications, 457(3), 363-369 (2015-01-13)
Caco-2, human colon carcinoma cell line, has been widely used as a model system for intestinal epithelial permeability because Caco-2 cells express tight-junctions, microvilli, and a number of enzymes and transporters characteristic of enterocytes. However, the functional differentiation and polarization
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