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Assay Method Information

Assay Name:  Biological Assay
Description:  Method All experimental measurements were performed in black 384 well polystyrene (low volume, round bottom, Corning (3676)) plates. PerkinElmer EnVision (Fluorescence Intensity/Absorbance Monochromator) or Tecan Infinite 200 PRO series plate reader was used to detect change in fluorescent intensity.Assessing ATX inhibition ATX activity was determined by measurement of released choline in reactions containing ATX (10 nM), choline oxidase (0.1 U/ml), HRP (100 U/ml), amplex red (50 μM) and LPC 18:1 (10 μM). Compounds of the invention were prepared as 10 point serial dilutions from 1 μM in duplicate and pre-incubated with ATX at 37 C. for 20 minutes prior to the addition of remaining reagents. The liberated choline was measured from changes in fluorescence intensity (λex 530 nm, λem 590 nm) of the product resurofin at 37 C. every 2 minutes over a 40-minute period. ATX activity was measured as a slope of the linear portion of the progress curve, typically between 14 to 24 minutes.
Affinity data for this assay
 

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Last update November 1, 2007
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