| Assay Method Information | |
| | Inhibition Assay of LpxC Enzymatic Activity by the Compounds of The Present Invention |
| Description: | The experimental procedures are described as follows: the test compound was dissolved in DMSO to prepare a 10 mM storage solution. The reaction was carried out in a 96-well microwell plate. Firstly, 20 μL of recombinant Pseudomonas aeruginosa LpxC (purchased from Signalway Antibody, Art. No.: AP74647-2) was added to the wells, with final concentrations of 5 nM, respectively; 5 μL of the test compound was added, the compound was subjected to 4-fold dilution to have 8 concentration points, with a concentration range of 0.61-10000 nM; 5 μL of LpxC substrate UDP-3-O—(R-3-hydroxydecanoyl)-GlcNAc (purchased from Biosynth Carbosynth, Art. No.: mu75071) was added, with a final concentration of substrate of 10 μM, and the reaction system was incubated at 25° C. for 120 minutes. Subsequently, 20 μL of 2.0 mg/mL fluorescamine (purchased from sigma aldrich, Art. No.: F9015, solvent being 1:1 dimethylformamide/acetonitrile) was added to the reaction system, mixed well, and reacted for 10 minutes; finally, 50 μL of 200 mM sodium phosphate buffer (pH 8.0) was added to terminate the reaction, and readings were taken using a microplate reader (BMG) at excitation and emission wavelengths of 390 nm and 495 nm, respectively. |
| Affinity data for this assay | |
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