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Assay Detail

CHEMBL3705511

Review assay metadata, readout intent, target linkage, and publication context from the same page.

Binding
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
215
Total Activities
214
Compounds Tested
1
Activity Types
0
Assay Parameters

Assay Information

Assay Type Binding
Organism Homo sapiens
Cell Type CHO-K1-hCRTH2
Confidence 9 — Direct single protein target
Curated By Autocuration

Target

Prostaglandin D2 receptor 2 (CHEMBL5071)
Type SINGLE PROTEIN
Organism Homo sapiens

Publication

Pyrazole compounds as CRTH2 antagonists
(2014)

Activity Statistics

Type Count Avg pChEMBL Best pChEMBL
Ki 215 7.99 10.00

Compounds Tested

Compound Name Phase Activities Best pChEMBL
CHEMBL2181751 1 10.00
CHEMBL3685933 1 10.00
CHEMBL3685949 1 10.00
CHEMBL3685952 1 10.00
CHEMBL3686053 1 10.00
CHEMBL3685926 1 10.00
CHEMBL3685864 1 9.70
CHEMBL3685885 1 9.70
CHEMBL3685891 1 9.70
CHEMBL3685924 1 9.70
CHEMBL3685925 1 9.70
CHEMBL3685936 1 9.70
CHEMBL3685890 1 9.60
CHEMBL3685943 1 9.52
CHEMBL3685967 1 9.52
CHEMBL3685921 1 9.40
CHEMBL3685898 1 9.30
CHEMBL3685935 1 9.30
CHEMBL3685944 1 9.30
CHEMBL3686017 1 9.30
CHEMBL3685930 1 9.22
CHEMBL3685932 1 9.22
CHEMBL3685947 1 9.22
CHEMBL3685977 1 9.22
CHEMBL3685894 1 9.15
CHEMBL3685920 1 9.15
CHEMBL3685889 1 9.12
CHEMBL3685910 1 9.10
CHEMBL3685916 1 9.10
CHEMBL3685970 1 9.10

Activity Data

Compound Name Type Rel. Value Units pChEMBL
CHEMBL2181751 Ki = 0.1 nM 10.00
CHEMBL3685926 Ki = 0.1 nM 10.00
CHEMBL3685933 Ki = 0.1 nM 10.00
CHEMBL3685949 Ki = 0.1 nM 10.00
CHEMBL3686053 Ki = 0.1 nM 10.00
CHEMBL3685952 Ki = 0.1 nM 10.00
CHEMBL3685924 Ki = 0.2 nM 9.70
CHEMBL3685925 Ki = 0.2 nM 9.70
CHEMBL3685864 Ki = 0.2 nM 9.70
CHEMBL3685891 Ki = 0.2 nM 9.70
CHEMBL3685885 Ki = 0.2 nM 9.70
CHEMBL3685936 Ki = 0.2 nM 9.70
CHEMBL3685890 Ki = 0.25 nM 9.60
CHEMBL3685943 Ki = 0.3 nM 9.52
CHEMBL3685967 Ki = 0.3 nM 9.52
CHEMBL3685921 Ki = 0.4 nM 9.40
CHEMBL3685898 Ki = 0.5 nM 9.30
CHEMBL3686017 Ki = 0.5 nM 9.30
CHEMBL3685944 Ki = 0.5 nM 9.30
CHEMBL3685935 Ki = 0.5 nM 9.30
CHEMBL3685930 Ki = 0.6 nM 9.22
CHEMBL3685977 Ki = 0.6 nM 9.22
CHEMBL3685947 Ki = 0.6 nM 9.22
CHEMBL3685932 Ki = 0.6 nM 9.22
CHEMBL3685894 Ki = 0.7 nM 9.15
CHEMBL3685920 Ki = 0.7 nM 9.15
CHEMBL3685889 Ki = 0.75 nM 9.12
CHEMBL3685916 Ki = 0.8 nM 9.10
CHEMBL3685910 Ki = 0.8 nM 9.10
CHEMBL3685970 Ki = 0.8 nM 9.10
CHEMBL3685973 Ki = 0.9 nM 9.05
CHEMBL3686003 Ki = 0.9 nM 9.05
CHEMBL3685922 Ki = 1.0 nM 9.00
CHEMBL3685886 Ki = 1.1 nM 8.96
CHEMBL3685863 Ki = 1.1 nM 8.96
CHEMBL3685979 Ki = 1.1 nM 8.96
CHEMBL3685968 Ki = 1.2 nM 8.92
CHEMBL3685917 Ki = 1.2 nM 8.92
CHEMBL3685975 Ki = 1.3 nM 8.89
CHEMBL3685914 Ki = 1.3 nM 8.89
CHEMBL3685888 Ki = 1.3 nM 8.89
CHEMBL3685892 Ki = 1.4 nM 8.85
CHEMBL3686055 Ki = 1.6 nM 8.80
CHEMBL3685923 Ki = 1.6 nM 8.80
CHEMBL3685976 Ki = 1.6 nM 8.80
CHEMBL3685931 Ki = 1.8 nM 8.74
CHEMBL3685915 Ki = 1.8 nM 8.74
CHEMBL3685983 Ki = 1.9 nM 8.72
CHEMBL3685899 Ki = 1.9 nM 8.72
CHEMBL3685966 Ki = 2.2 nM 8.66