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Assay Method Information

Assay Name:  ligand sensing assay (LiSA)
Description:  As used herein, reference to the activity of an LXR agonist at LXRα and LXRβ refer to the activity as measured using the ligand sensing assay (LiSA) described in Spencer et al. Journal of Medicinal Chemistry 2001, 44, 886-897, incorporated herein by reference. In some embodiments, the LXR agonist has an EC50 of less than 1 μM in the ligand sensing assay (e.g., 0.5 nm to 500 nM, 10 nM to 100 nM). For example, the methods of the invention can be performed using an LXRβ agonist having activity for LXRβ that is at least 3-fold greater than the activity of the agonist for LXRα, or having activity for LXRβ that is at least 10-fold greater than the activity of the agonist for LXRα, or having activity for LXRβ that is at least 100-fold greater than the activity of said agonist for LXRα, or having activity for LXRβ that is at least within 3-fold of the activity of the agonist for LXRα. The term greater activity in the LiSA assay assay refers to a lower EC50. For example, GW3965 2 has approximately 6-fold greater activity for LXRβ (EC50=30) compared to LXRα (EC50=190).
Affinity data for this assay
 

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Last update November 1, 2007
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