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https://www.selleckchem.com/products/AZD7762.html Highly stable superprotonic conductivity (>10-2 S cm-1) has been achieved through the unprecedented solvent-free-coordinative urea insertion in MOF-74 [M2(dobdc), M = Ni2+, Mg2+; dobdc = 2,5-dioxido-1,4-benzenedicarboxylate] without an acidic moiety. The urea is bound to open metal sites and alters the void volume and surface functionality, which triggers a significant change in proton conductivity and diffusion mechanism. Solid-state 2H NMR revealed that the high conductivity was attributed to the strengthening of the hydrogen bonds between guest H2O induced by hydrogen bonds in the interface between H2O and the polarized coordinated urea.Ganglioside GM3 is a sialylated membrane-based glycosphingolipid that regulates insulin receptor signaling via direct association with the receptor. The level of expression of GM3 synthase (GM3S) and GM3 is increased in tissues of patients with diabetes and murine models of diabetes, and obesity-induced insulin resistance is attenuated in GM3S-deficient mice. Therefore, GM3S has been considered a therapeutic target for type II diabetes; however, no GM3S inhibitors have been reported to date. In this study, we established a high-throughput scintillation proximity assay that can detect GM3S activity to screen GM3S inhibitors from our original chemical library. We also established methods for detecting the activity of GM3S and another sialyltransferase, ST3Gal3, through direct measurement of the enzyme products using an automatic rapid solid-phase extraction system directly coupled to a mass spectrometer. Consequently, we successfully identified two different chemotypes of GM3S-selective inhibitors with a mixed mode of inhibition. We believe that these compounds can be further developed into drugs to treat or prevent diabetes as well as contribute to the development of the ganglioside research field.Because of the permission of the manipulations of modular construction on the atomic l

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