Sentence examples for role of the active from inspiring English sources

Since the early 1980s experiments have been carried out on a range of CuAOs to examine the role of the active site copper in activating molecular oxygen (O2) and whether it is redox active during the oxidative half-cycle of catalysis (27− 37).

The role of the active site in the lock-and-key fit of a substrate (the key) to an enzyme (the lock).

Finally, the obtained metallic 3D honey-comb structures have been functionalized by ceramic coatings such as titanium dioxide (TiO2) and aluminum oxide (Al2O3) via radio frequency-plasma enhanced chemical vapor deposition (RF-PECVD) having the role of the active parts.

The analyses also validated the role of the active triad comprising of C42, H174, and N204 in catalysis and identified a serine at position 149 which is required for specific peptide substrate interactions.

Addition of thiol reagents, such as l-cysteine, glutathione and dithiothreitol, significantly abolished the inhibition, while Ni2+ competitive inhibitors, boric acid and sodium fluoride, synergetically inhibited urease with EB, indicating the obligatory role of the active site sulfhydryl group for the inhibition.

To increase the oxidation rate and alter the oxidation regiospecificity of nitro aromatics as well as to study the role of the active site residues I100, Q141, T201, and F205 of the alpha hydroxylase fragment of ToMO (TouA), DNA shuffling and saturation mutagenesis were used to generate random mutants.

The role of the active-site microenvironment in fine-tuning Zm-p60.1 substrate specificity has been explored, particularly in the W373K mutant, using site-directed random mutagenesis to investigate the influence of amino acid changes around the 373 position.

This accounts for the lower activity of the higher loaded samples and further clarifies the roles of the active and spectator sites.

Herein, the roles of the active oxygen species generated in the liquid-phase photocatalytic degradation of RhB using BiVO4/TiO2 heterostructure under visible light irradiation are discussed in detail.

The roles of the active oxide component, partially reduced ceria, and the metal component, Pt, in the ethanol steam reforming mechanism were investigated by diffuse reflectance infrared spectroscopy (DRIFTS) carried out under steady state reaction conditions.

The results also support the roles of the active site tyrosine residues as being electrophilic catalysts, rather than performing general acid catalysis, in agreement with experimental proposals.