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Assay Detail

CHEMBL3705226

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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, Cat No. 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 dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.
59
Total Activities
59
Compounds Tested
1
Activity Types
0
Assay Parameters

Assay Information

Assay Type Binding
Organism Homo sapiens
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 59 9.29 10.00

Compounds Tested

Compound Name Phase Activities Best pChEMBL
CHEMBL3690165 1 10.00
CHEMBL3690164 1 10.00
CHEMBL3690191 1 10.00
CHEMBL3690177 1 10.00
CHEMBL3690185 1 10.00
CHEMBL3639847 1 10.00
CHEMBL3690178 1 10.00
CHEMBL3690192 1 9.70
CHEMBL3690168 1 9.70
CHEMBL3685833 1 9.70
CHEMBL3690167 1 9.70
CHEMBL3690172 1 9.70
CHEMBL3685840 1 9.70
CHEMBL3690190 1 9.70
CHEMBL3690189 1 9.70
CHEMBL3690155 1 9.70
CHEMBL3690161 1 9.70
CHEMBL3690158 1 9.70
CHEMBL3685842 1 9.70
CHEMBL3685841 1 9.70
CHEMBL3690170 1 9.52
CHEMBL3690181 1 9.52
CHEMBL3690180 1 9.52
CHEMBL3685838 1 9.52
CHEMBL3685844 1 9.52
CHEMBL3690156 1 9.52
CHEMBL3690157 1 9.52
CHEMBL3690159 1 9.52
CHEMBL3690171 1 9.52
CHEMBL3690175 1 9.40

Activity Data

Compound Name Type Rel. Value Units pChEMBL
CHEMBL3690165 Ki = 0.1 nM 10.00
CHEMBL3690178 Ki = 0.1 nM 10.00
CHEMBL3639847 Ki = 0.1 nM 10.00
CHEMBL3690185 Ki = 0.1 nM 10.00
CHEMBL3690191 Ki = 0.1 nM 10.00
CHEMBL3690164 Ki = 0.1 nM 10.00
CHEMBL3690177 Ki = 0.1 nM 10.00
CHEMBL3685840 Ki = 0.2 nM 9.70
CHEMBL3690168 Ki = 0.2 nM 9.70
CHEMBL3685833 Ki = 0.2 nM 9.70
CHEMBL3690167 Ki = 0.2 nM 9.70
CHEMBL3690172 Ki = 0.2 nM 9.70
CHEMBL3690192 Ki = 0.2 nM 9.70
CHEMBL3685841 Ki = 0.2 nM 9.70
CHEMBL3690190 Ki = 0.2 nM 9.70
CHEMBL3690189 Ki = 0.2 nM 9.70
CHEMBL3690155 Ki = 0.2 nM 9.70
CHEMBL3690161 Ki = 0.2 nM 9.70
CHEMBL3690158 Ki = 0.2 nM 9.70
CHEMBL3685842 Ki = 0.2 nM 9.70
CHEMBL3690181 Ki = 0.3 nM 9.52
CHEMBL3690180 Ki = 0.3 nM 9.52
CHEMBL3685838 Ki = 0.3 nM 9.52
CHEMBL3685844 Ki = 0.3 nM 9.52
CHEMBL3690157 Ki = 0.3 nM 9.52
CHEMBL3690159 Ki = 0.3 nM 9.52
CHEMBL3690170 Ki = 0.3 nM 9.52
CHEMBL3690171 Ki = 0.3 nM 9.52
CHEMBL3690156 Ki = 0.3 nM 9.52
CHEMBL3690175 Ki = 0.4 nM 9.40
CHEMBL3690187 Ki = 0.4 nM 9.40
CHEMBL3690186 Ki = 0.4 nM 9.40
CHEMBL3690176 Ki = 0.4 nM 9.40
CHEMBL3685846 Ki = 0.4 nM 9.40
CHEMBL3685832 Ki = 0.5 nM 9.30
CHEMBL3690174 Ki = 0.6 nM 9.22
CHEMBL3685836 Ki = 0.6 nM 9.22
CHEMBL3690163 Ki = 0.6 nM 9.22
CHEMBL3690188 Ki = 0.7 nM 9.15
CHEMBL3685831 Ki = 0.8 nM 9.10
CHEMBL3690162 Ki = 0.8 nM 9.10
CHEMBL3685845 Ki = 0.8 nM 9.10
CHEMBL3685835 Ki = 0.8 nM 9.10
CHEMBL3685834 Ki = 0.8 nM 9.10
CHEMBL3690183 Ki = 0.9 nM 9.05
CHEMBL3690166 Ki = 1.0 nM 9.00
CHEMBL3690184 Ki = 1.2 nM 8.92
CHEMBL3685839 Ki = 1.2 nM 8.92
CHEMBL3685837 Ki = 1.3 nM 8.89
CHEMBL3690173 Ki = 2.2 nM 8.66