| Assay Method Information | |
| | NMR Assay |
| Description: | All NMR spectra were acquired at 298 K on a Bruker DRX 600 MHz spectrometer equipped with a cryoprobe. Typically, NMR samples contained 0.1-0.2 mM protein in 50 mM KH2PO4 and 50 mM Na2HPO4, pH 7.4, containing 150 mM NaCl and 5 mM β-Mercaptoethanol. Water suppression was carried out using the WATERGATE sequence. NMR data were processed using the Bruker program Xwin-NMR version 3.5. NMR ligand binding experiments were carried out in an analogous way to those previously described. See D'Silva L., et. al., J. Am. Chem. Soc. 2005, 127, 13220-13226 and Popowicz G. M., et. al., Cell Cycle. 2007, 6, 2386-2392. The maximum concentration of DMSO at the end of titration experiments was less than 1%. The pH was maintained constant during the entire titration. The 1H-15N-HSQC spectra were recorded using fast HSQC pulse sequence as described by Mori et. al., J. Magn. Reson. B 1995, 108, 94-98. |
| Affinity data for this assay | |
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