Results 21 to 30 of about 4,912 (248)

Occurrence and expression of genes encoding methyl-compound production in rumen bacteria

Animal Microbiome, 2019
Background Digestive processes in the rumen lead to the release of methyl-compounds, mainly methanol and methylamines, which are used by methyltrophic methanogens to form methane, an important agricultural greenhouse gas.
William J. Kelly, Sinead C. Leahy, Janine Kamke, Priya Soni, Satoshi Koike, Roderick Mackie, Rekha Seshadri, Gregory M. Cook, Sergio E. Morales, Chris Greening, Graeme T. Attwood   +10 more
doaj   +1 more source

Testing the ability of non-methylamine osmolytes present in kidney cells to counteract the deleterious effects of urea on structure, stability and function of proteins. [PDF]

PLoS ONE, 2013
Human kidney cells are under constant urea stress due to its urine concentrating mechanism. It is believed that the deleterious effect of urea is counteracted by methylamine osmolytes (glycine betaine and glycerophosphocholine) present in kidney cells. A
Sheeza Khan, Zehra Bano, Laishram R Singh, Md Imtaiyaz Hassan, Asimul Islam, Faizan Ahmad   +5 more
doaj   +1 more source

Nickel Photocatalyzed Reductive 1,4-Dicarbofunctionalization of 1,3-Enynes with N‑Methylamines and Organohalides Enabled by Site-Selective C(sp³)–H Functionalization

, 2023
A cooperative nickel and photoredox reductive catalysis for 1,4-dicarbofunctionalization of 1,3-enynes with tertiary N-methylamines and organohalides to produce tetrasubstituted allenes is presented. This method enables the generation of the aminoalkyl C(
Gui-Fen Lv, Shuang Wu, Yang Li, Chaozhihui Cheng, Jin-Heng Li, Gui-Fen Lv (4985513), Jin-Heng Li (1457626), Yang Li (7082), Chaozhihui Cheng (11790995), Shuang Wu (148427)   +9 more
core   +1 more source

Development and Application of a UPLC–MRM–MS Method for Quantifying Trimethylamine, Trimethylamine-N-Oxide, and Related Metabolites in Individuals with and Without Metabolic Syndrome

Separations
Trimethylamine-N-oxide (TMAO) is associated with various chronic diseases. TMAO is a downstream oxidative metabolite of trimethylamine (TMA) that is generated by the gut microbiota from dietary choline, carnitine, and betaine.
Mohammed E. Hefni, Cornelia M. Witthöft
doaj   +1 more source

Uncovering the Diversity and Activity of Methylotrophic Methanogens in Freshwater Wetland Soils

mSystems, 2019
Wetland soils are one of the largest natural contributors to the emission of methane, a potent greenhouse gas. Currently, microbial contributions to methane emissions from these systems emphasize the roles of acetoclastic and hydrogenotrophic methanogens,
Adrienne B. Narrowe, Mikayla A. Borton, David W. Hoyt, Garrett J. Smith, Rebecca A. Daly, Jordan C. Angle, Elizabeth K. Eder, Allison R. Wong, Richard A. Wolfe, Alexandra Pappas, Gil Bohrer, Christopher S. Miller, Kelly C. Wrighton   +12 more
doaj   +3 more sources

Synthesis and Characterization of New Copper(II) Coordination Compounds with Methylammonium Cations

Inorganics
We synthesized four new copper(II) complexes with acetato and chlorido ligands and methylammonium (MA), dimethylammonium (DMA), and tetramethylammonium (TMA) counterions: (MA)4[Cu2Ac4Cl2]Cl2·2H2O (1), (DMA)2[Cu2Ac4Cl2] (2), (DMA)4[Cu2Ac4Cl2]Cl2·2H2O (3),
Amalija Golobič, Brina Dojer, Marko Jagodič, Anja Siher, Anže Pegan, Matjaž Kristl   +5 more
doaj   +1 more source

Dissolved methylamines measured in surface water during POSEIDON cruise POS211

, 2004
Dissolved methylamines measured in surface water during POSEIDON cruise ...
Stuart Gibb (7886195), OMEX Project Members, OMEX Project Members (6966899), Gibb, Stuart W   +3 more
core   +1 more source

Palladacarboxamide Capping Reagents for Carbon Isotope Labeling and Pharmaceutical Diversification

Angewandte Chemie, EarlyView.
Herein, we present a method for carbon isotope labeling of arylamides via the coupling of air‐stable palladium carboxamide complexes and boronic ester/acids. A wide variety of functionalized boronic esters and acids have been coupled with simple palladium carboxamides complexes.
Daniel V. Hoffmann, Anika Schick, Lasse Kjær, Vitus J. Enemærke, Clemens Kaussler, Jens Torp, Pablo Martínez‐Pardo, Charles S. Elmore, Troels Skrydstrup   +8 more
wiley   +2 more sources

Straightforward Access to alpha-Methylamines through Cross-Metathesis

, 2010
International audienceA two-step procedure involving cross-metathesis and reductive amination enables easy access to alpha-methylamines and alpha,alpha'-dimethyldiamines from a wide variety of terminal ...
Poulhès, Florent, Bertrand, Michèle P., Sylvain, Remy, Gil, Gérard, Gastaldi, Stéphane, Perfetti, Patricia   +5 more
core   +1 more source

Cage‐Type Porous Organic Salts as Ship‐in‐a‐Bottle Nanoreactors for Light‐Transparent and Reusable Molecular Photocatalysts

Angewandte Chemie, EarlyView.
Light‐transparent, cage‐type porous organic salts (POSs) function as nanoreactors that heterogenize molecularly defined photocatalysts through size exclusion. Photocatalysts are encapsulated intact during crystallization, providing confined yet accessible reaction fields under visible light without catalyst modification.
Kazuki Shiga, Ryosuke Nishikubo, Masafumi Minoshima, Akinori Saeki, Kazuya Kikuchi, Norimitsu Tohnai   +5 more
wiley   +2 more sources