Tag: M.W=250-300

Bagriantsev, Sviatoslav N.; Ang, Kean-Hooi; Gallardo-Godoy, Alejandra; Clark, Kimberly A.; Arkin, Michelle R.; Renslo, Adam R.; Minor, Daniel L. published the artcile< A High-Throughput Functional Screen Identifies Small Molecule Regulators of Temperature- and Mechano-Sensitive K2P Channels>, Category: esters-buliding-blocks, the main research area is screening small mol temperature K2P potassium channel yeast.

K2P (KCNK) potassium channels generate “”leak”” potassium currents that strongly influence cellular excitability and contribute to pain, somatosensation, anesthesia, and mood. Despite their physiol. importance, K2Ps lack specific pharmacol. Addressing this issue has been complicated by the challenges that the leak nature of K2P currents poses for electrophysiol.-based high-throughput screening strategies. Here, we present a yeast-based high-throughput screening assay that avoids this problem. Using a simple growth-based functional readout, we screened a library of 106,281 small mols. and identified two new inhibitors and three new activators of the mammalian K2P channel K2P2.1 (KCNK2, TREK-1). By combining biophys., structure-activity, and mechanistic anal., we developed a dihydroacridine analog, ML67-33, that acts as a low micromolar, selective activator of temperature- and mechano-sensitive K2P channels. Biophys. studies show that ML67-33 reversibly increases channel currents by activating the extracellular selectivity filter-based C-type gate that forms the core gating apparatus on which a variety of diverse modulatory inputs converge. The new K2P modulators presented here, together with the yeast-based assay, should enable both mechanistic and physiol. studies of K2P activity and facilitate the discovery and development of other K2P small mol. modulators.

ACS Chemical Biology published new progress about Biological ion transport, potassium. 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Category: esters-buliding-blocks.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Enuh, Blaise Manga; Aytar Celik, Pinar published the artcile< Insight into the biotechnology potential of Alicyclobacillus tolerans from whole genome sequence analysis and genome-scale metabolic network modeling.>, HPLC of Formula: 112-63-0, the main research area is Alicyclobacillus carbohydrates bioinformatics biotechnol network modeling; Acidophiles; Alicyclobacillus tolerans; Extreme environment; Genome-scale metabolic network model; Iron oxidation; Whole-genome sequence.

Extremophilic bacteria have numerous uncovered biotechnol. potentials. Acidophilic bacteria are important iron oxidizers that are valuable in bioleaching and in studying extreme environments on earth and in space. Despite their obvious potential, little is known about the genetic traits that underpin their metabolic functions, which are equally poorly understood from a mechanistic perspective. Novel bioinformatics and computational biol. pipelines can be used to analyze whole genomes to obtain insights into the phenotypic potential of organisms as well as develop a math. model representation of metabolism Whole-genome sequence anal. and a genome-scale metabolic network model was curated for an iron-oxidizing bacterium initially isolated from an acid mine drainage in Turkey, previously identified as Alicyclobacillus tolerans. The genome contained a high proportion of genes for energy generation from carbohydrates, amino acids synthesis and conversion, nucleic acid metabolism and repair which contribute to robust adaptation to their extreme environments. Several candidate genes for pyrite metabolism, iron uptake, regulation and storage, as well as genes for resistance to important heavy metals were annotated. A curated genome-scale metabolic network anal. accurately predicted facultative anaerobic growth, heterotrophic characteristics, and growth on a wide variety of carbon sources. This is the first in-depth in silico anal. of A. tolerans to the best of our knowledge which is expected to lay the groundwork for future research and drive innovations in environmental microbiol. and biotechnol. applications. The genomic data and mechanistic framework will have applications in biomining, synthetic geomicrobiol. on earth, as well as for space exploration and settlement.

Journal of Microbiological Methods published new progress about Alicyclobacillus tolerans. 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, HPLC of Formula: 112-63-0.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Isaacs-Ten, Anna; Moreno-Gonzalez, Mar; Bone, Caitlin; Martens, Andre; Bernuzzi, Federico; Ludwig, Tobias; Hellmich, Charlotte; Hiller, Karsten; Rushworth, Stuart A.; Beraza, Naiara published the artcile< Metabolic Regulation of Macrophages by SIRT1 Determines Activation During Cholestatic Liver Disease in Mice>, COA of Formula: C19H34O2, the main research area is cholestatic liver disease autophagy SIRT1 macrophage metabolic regulation; Cholestasis; Inflammasome; Macrophages; Metabolism; SIRT1.

Inflammation is the hallmark of chronic liver disease. Metabolism is a key determinant to regulate the activation of immune cells. Here, we define the role of sirtuin 1 (SIRT1), a main metabolic regulator, in controlling the activation of macrophages during cholestatic liver disease and in response to endotoxin. We have used mice overexpressing SIRT1, which we treated with i.p. lipopolysaccharides or induced cholestasis by bile duct ligation. Bone marrow-derived macrophages were used for mechanistic in vitro studies. Finally, PEPC-Boy mice were used for adoptive transfer experiments to elucidate the impact of SIRT1-overexpressing macrophages in contributing to cholestatic liver disease. We found that SIRT1 overexpression promotes increased liver inflammation and liver injury after lipopolysaccharide/GalN and bile duct ligation; this was associated with an increased activation of the inflammasome in macrophages. Mechanistically, SIRT1 overexpression associated with the activation of the mammalian target of rapamycin (mTOR) pathway that led to increased activation of macrophages, which showed metabolic rewiring with increased glycolysis and broken tricarboxylic acid cycle in response to endotoxin in vitro. Activation of the SIRT1/mTOR axis in macrophages associated with the activation of the inflammasome and the attenuation of autophagy. Ultimately, in an in vivo model of cholestatic disease, the transplantation of SIRT1-overexpressing myeloid cells contributed to liver injury and fibrosis. Our study provides novel mechanistic insights into the regulation of macrophages during cholestatic disease and the response to endotoxin, in which the SIRT1/mTOR crosstalk regulates macrophage activation controlling the inflammasome, autophagy and metabolic rewiring.

Cellular and Molecular Gastroenterology and Hepatology published new progress about Adhesion G protein-coupled receptor E1 Role: BSU (Biological Study, Unclassified), BIOL (Biological Study). 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, COA of Formula: C19H34O2.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Kim, Jeongmin; Savoie, Brett M.; Miller, Thomas F. III published the artcile< Interfacial Electron Transfer and Ion Solvation in the Solid Electrolyte Interphase>, Electric Literature of 112-63-0, the main research area is interfacial electron transfer ion solvation battery solid electrolyte interphase; atomic resolution simulation solid polymer liquid electrolyte solvation.

As a chem. and structurally well-defined model for redox processes in the solid electrolyte interphase of battery electrodes, we investigate electron transfer (ET) to lithium ions at the interface between a platinum metal anode and a solid polymer electrolyte. Studied electrolytes include LiTFSI (lithium bis(trifluoromethane)sulfonimide) salts in polyethylene oxide and poly(diethylene oxide-alt-oxymethylene), as well as in the associated liquid electrolytes 1,2-dimethoxyethane and tetraglyme. Atomic-resolution simulations are performed with constant-potential polarizable electrodes to characterize interfacial ET kinetics, including lithium-ion solvation structures and solvent reorganization effects as a function of applied electrode potential. The linear-response assumptions of the Marcus theory for ET are found to be robust in these systems, yet ion-solvation behavior at the anode interface is strikingly dependent on chain connectivity, solvation environment, and the magnitude of the applied electrode potential, resulting in very different ET kinetics for lithium electroreduction

Journal of Physical Chemistry C published new progress about Battery anodes. 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Electric Literature of 112-63-0.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Khan, N. M.; Mazuki, N. F.; Samsudin, A. S. published the artcile< Contribution of Li+ Ions to a Gel Polymer Electrolyte Based on Polymethyl Methacrylate and Polylactic Acid Doped with Lithium Bis(oxalato) Borate>, COA of Formula: C19H34O2, the main research area is polymethyl methacrylate polylactic acid lithium bisoxalato borate doping electrolyte.

In this work, gel polymer electrolyte systems based on a polymethyl methacrylate (PMMA) and polylactic acid (PLA) blend that was doped with various compositions of lithium bis(oxalato) borate (LiBOB) were successfully prepared Several characterizations, which included Fourier transform IR (FTIR) spectroscopy, X-ray diffraction (XRD), and elec. impedance spectroscopy, were carried out to determine their structural and ionic conduction properties. FTIR anal. revealed that mol. interactions had occurred via Li+ ions in several regions, representing the functional groups of C-O, C=O and C-H stretching of the PMMA-PLA. Moreover, an increase in the amorphous phase upon the incorporation of LiBOB was revealed through XRD anal. A sample containing 20 weight% of LiBOB (PPLi20) was found to be the most amorphous sample in this study. This result is in alignment with the ionic conduction properties, showing an increase of ionic conductivity up to the PPLi20 sample, which exhibited the highest ionic conductivity with a value of 1.37 x 10-3 S cm-1. The contribution of Li+ ions towards the enhancement of ionic conductivity was determined through the transport parameter anal. It was proven that upon the addition of LiBOB, the value of η, μ, and D increased, which signified the high dissociation of ions. Beyond 20 weight%, the transport parameters decreased due to the overcrowding of ions.

Journal of Electronic Materials published new progress about Activation energy. 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, COA of Formula: C19H34O2.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Aru, Violetta; Nittnaus, Andreas Paul; Soerensen, Klavs Martin; Toldam-Andersen, Torben Bo; Engelsen, Soeren Balling published the artcile< Effects of Water Stress, Defoliation and Crop Thinning on Vitis vinifera L. cv. Solaris Must and Wine Part II: 1H NMR Metabolomics>, Electric Literature of 112-63-0, the main research area is metabolomics water stress defoliation NMR spectroscopy Vitis wine; 1H NMR; FT-IR; Solaris; Vitis vinifera; WineScan; crop thinning; defoliation; grapevine; metabolomics; tyrosol; water deficit.

Proton NMR (1H NMR) metabolomics was employed to investigate the impact of water deficit, defoliation, and crop thinning on the chem. composition of must and wines from the cool-climate white grape variety Solaris. The obtained results show that viticultural practices (defoliation and crop thinning) affected the amino acid and sugar content of Solaris must and thereby the quality of the final wine-mainly in terms of compounds normally related to fruity aroma (i.e., isopentanol), non-sugar sweetness (i.e., proline and glycerol), and alc. content. The content of tyrosol, a natural phenolic antioxidant with a high bioavailability, was increased in the final wine by a combination of defoliation and crop thinning. The results of the metabolomics anal. performed on the must and wine samples from the water stress experiment showed that short-term water deficit significantly affected the concentration of several flavor-related compounds, including glutamate, butyrate and propanol, of the organic acids lactate and fumarate, and of the phenolic compounds caffeic acid and p-coumaric acid. ANOVA simultaneous component anal. showed that the effect of water deficit accounted for 11% (p < 0.001) and 8% (p < 0.001) of the variability in the metabolite concentrations in must and wines, resp., while viticultural practices accounted for 38% (p < 0.001) and 30% (p < 0.001) of the metabolite variability in must and wines, resp. Metabolites published new progress about Bioavailability. 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Electric Literature of 112-63-0.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Wei, Zuojun; Hou, Yaxin; Zhu, Xinmiao; Guo, Liangyu; Liu, Yingxin; Zhang, Anyun published the artcile< Nitrogen-Doped Graphene-Supported Iron Catalyst for Highly Chemoselective Hydrogenation of Nitroarenes>, Recommanded Product: (9Z,12Z)-Methyl octadeca-9,12-dienoate, the main research area is nitrogen doped graphene supported iron catalyst preparation; aromatic amine preparation chemoselective; nitroarene hydrogenation nitrogen doped graphene supported iron catalyst.

A nitrogen-doped graphene-supported iron catalyst was used for the first time in hydrogenation of a series of nitroarenes to give the corresponding aromatic amines ArNH2 [Ar = Ph, 4-H2CCNC6H4, 2-Cl-3-pyridyl, etc.] with excellent activity and chemoselectivity under mild reaction conditions. Physicochem. characterization of the catalyst by transmission electron microscopy, X-ray diffraction, XPS and Moessbauer spectroscopy revealed the formation of iron particles with an iron oxide core and a metallic iron shell that were coated by a few layers of nitrogen-doped graphene. The unique structure of FeNx/C in the catalyst proved to contribute to the hydrogenation activity.

ChemCatChem published new progress about Aromatic amines Role: SPN (Synthetic Preparation), PREP (Preparation). 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Recommanded Product: (9Z,12Z)-Methyl octadeca-9,12-dienoate.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Belal, Amany; Elanany, Mohamed A.; Raafat, Mohamed; Hamza, Hanan Taher; Mehany, Ahmed B. M. published the artcile< Calendula officinalis Phytochemicals for the Treatment of Wounds Through Matrix Metalloproteinases-8 and 9 (MMP-8 and MMP-9): In Silico Approach>, Reference of 112-63-0, the main research area is Calendula diabetic foot ulcer wound phytochem MMP8 MMP9.

Diabetic foot ulceration is a common complication of an uncontrolled diabetic regimen and is considered a serious type of wound. Matrix metalloprteinases (MMPs) are the common key enzymes in wound management, overexpression of MMPs can lead to chronic wounds and ulcers. Calendula officinalis extract has established its efficacy in treating wounds in folk medicine. In this research work, we will focus on the chem. constituents of this promising herb and will investigate its abilities to target matrix metalloprteinase-8 (MMP-8) and matrix metalloprteinase-9 (MMP-9) proteins through the usage of computer-aided drug design tools. In the current study, several promising dual inhibitors are identified, such as quercetin, isoquercetin, isorhamnetin, and isorhamnetin 3-O glycoside, they showed to be good inhibitors for both enzyme subtypes with greater docking score energies than RND-336, which has been reported as a selective MMP-9 inhibitor. Binding scores and amino acid interactions in addition to mol. dynamics (MD) will be discussed in detail through this research work.

Natural Product Communications published new progress about Amino acids Role: BSU (Biological Study, Unclassified), BIOL (Biological Study). 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Reference of 112-63-0.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Bhadra, Sukalyan; Dzik, Wojciech I.; Goossen, Lukas J. published the artcile< Synthesis of aryl ethers from aromatic carboxylic acids>, Safety of (9Z,12Z)-Methyl octadeca-9,12-dienoate, the main research area is aryl ether preparation; aromatic carboxylate salt tetraalkyl orthosilicate trialkyl borate decarboxylative alkoxylation.

A silver/copper bimetallic catalyst system promotes the decarboxylative Chan-Evans-Lam alkoxylation of ortho-substituted aromatic carboxylate salts with tetraalkyl orthosilicates or trialkyl borates. Non-ortho-substituted carboxylates are alkoxylated via an ortho-C-H-alkoxylation with concomitant cleavage of the carboxylate directing group via protodecarboxylation. This way, meta-substituted carboxylates are converted into para-substituted alkoxyarenes and vice versa. The combined processes provide a convenient synthetic entry to the important class of aromatic ethers from widely available carboxylic acids.

Synthesis published new progress about Alkoxylation. 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Safety of (9Z,12Z)-Methyl octadeca-9,12-dienoate.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Senthilkumar, Srinivasan; Sankaran, Kuyam Rathinavelu published the artcile< Kinetics and mechanistic study of pyridinium hydrobromide perbromide-induced carbon-carbon bond scission>, HPLC of Formula: 112-63-0, the main research area is kinetics mechanistic pyridinium hydrobromide perbromide induced carbon bond scission.

The title investigation shows that pyridinium hydrobromide perbromide (PHPB) induced electron transfer reaction in pentaamminecobalt(III) complexes of α-hydroxy acids [R-CHOH-C=0-O-CoIII(NH3)5]2+(ClO4)2 such as mandelic, lactic and glycolic acids (R = C6H5), (R = CH3) and (R = H). Towards these complexes, PHPB acts as a two equivalent oxidizing agent, yielding CoII and carbon-carbon bond cleavage products. Addition of pyridinium hydrobromide does not affect the rate indicating that PHPB itself is the reactive oxidizing species. The rate decreases with an increase in acetic acid content in the solvent mixture The observed exptl. data have been rationalized in terms of a hydride ion transfer in the rate determining step. This oxidation acts as a diagnostic tool to find out the fraction proceeding by synchronous cleavages of C-H and C-C bonds.

Transition Metal Chemistry (Dordrecht, Netherlands) published new progress about Activation enthalpy. 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, HPLC of Formula: 112-63-0.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics