Assay Method Information

Assay Name:  TR-FRET Assay
Description:  All data was collected using a standard TR-FRET screening assay: LanthaScreen Tracer 199 at 50 nM, Eu-anti-His Antibody at 2 nM, 5 nM RIPK2 enzyme, and 1× Kinase Reaction Buffer. There was a 1 hour incubation prior to read. TR-FRET signal of the interaction (340Ex/665Em/615Em) was read at room temperature with standard setting. Background was subtracted of wells containing no enzyme. Percent inhibition was based on uninhibited controls log (inhibitor) vs. response. Variable slope equation was used with no constraints: Log Y=Bottom+(Top−Bottom)/(1+10{circumflex over ( )}((Log IC50−X)*Hill Slope)).Analytical Instrumentation:NMR: Bruker UltraShield -300 or Bruker Ascend -400 spectrometers.LCMS: Shimadzu LCMS-2020 or Agilent technologies 1260 Infinity-6120 Quadrupole LC/MS.Purification:TLC plates: Thin-layer chromatography with E. Merck silica gel 60 F254 pre-coated plates (0.25 mm).Flash chromatography: Agela Technologies CHEETAH-MP200 CH16200 2T-A0099 or Biotage Isolera ISO-PSV ISPS 1832112.
Affinity data for this assay
 

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