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https://www.selleckchem.com/products/rrx-001.html We report synthesis and enzymatic assays on human histone lysine methyltransferase catalysed methylation of histones that possess lysine and its geometrically constrained analogues containing rigid (E)-alkene (KE), (Z)-alkene (KZ) and alkyne (Kyne) moieties. Methyltransferases G9a and GLP do have a capacity to catalyse methylation in the order K ≫ KE > KZ ∼ Kyne, whereas monomethyltransferase SETD8 catalyses only methylation of K and KE.It remains challenging to develop new materials exhibiting enzyme-like activities and understand the structure-property correlations and catalytic mechanisms. In this study, the characteristics, mechanisms, and applications of a light-activated mimic oxidase based on semiconducting polymer dots (Pdots) prepared from an organic conjugated polymer are demonstrated.Development of a new synthetic method for the construction of quaternary centers with a trifluoromethyl group was realized by way of 1,6-addition of various nucleophiles including active methylene compounds to highly reactive δ-trifluoromethylated p-quinone methides generated in situ from the corresponding tertiary carbonates with a catalytic amount of an appropriate base.In this work, we report a simple ratiometric electrochemiluminescence (ECL) method for ultra-sensitive immunoanalysis. A glassy carbon electrode (GCE) was modified by a mixture of porous g-C3N4 nanosheets and carbon nanotubes (CNTs). Secondary antibodies were labeled using CuS nanoparticles as the tags. After immune recognition, CuS nanoparticles in the immunocomplex were dissolved as Cu2+, which can quench the ECL of g-C3N4. The amount of Cu2+ was determined to quantify the concentration of the target antigen. To enhance the sensitivity, Cu2+ ions were firstly enriched and reduced to Cu on the surface of GCE/CNTs-g-C3N4, and the cathodic ECL of g-C3N4 was measured as the reference signal in the ratiometric ECL measurements. After applying a potential of 0.6

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