| Assay Method Information | |
| | GYS2 Coupled Enzyme Assay |
| Description: | Compounds that inhibit the hGYS2 enzyme and, subsequently, the downstream conversion of NADH to NAD+, were tested using assay ready plates (black, clear bottom 384 well plates) in a final DMSO reaction volume of 2.5% DMSO. The Assay Buffer contained 50 mM Tris pH 7.5, 2 mM MgCl2, and 100 mM KCl. Fresh stocks of BSA at a final concentration of 0.02% and TCEP 1 mM were added before splitting buffer into hGYS2 buffer and substrate buffer. To the hGYS2 buffer, rabbit liver glycogen was added at a final concentration of 0.2% glycogen. Glucose-6-Phosphate was added at 2 mM, recombinant hGYS2/GN1 protein was added at 200 nM to the substrate buffer, phosphoenolpyruvate (PEP) was added at 2 mM, UDP-Glucose was added at 2 mM, NADH was added at 0.6 mM, and Pyruvate Kinase/Lactate Dehydrogenase was added at 20 units/mL. The reaction was initiated by mixing hGYS2 buffer and substrate buffer at a 1:1 ratio. Both buffers were plated using a liquid dispensing device with hGYS2 buffer plated first followed by the substrate buffer. |
| Affinity data for this assay | |
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