| Assay Method Information | |
| | Human Androgen Receptor (hAR) Ligand Binding Domain (LBD) Affinity Assay |
| Description: | Methods: hAR-LBD (633-919) was cloned into pGex4t.1. Large scale GST-tagged AR-LBD was prepared and purified using a GST column. Recombinant AR-LBD was combined with [3H]mibolerone (PerkinElmer, Waltham, Mass.) in buffer A (10 mM Tris, pH 7.4, 1.5 mM disodium EDTA, 0.25 M sucrose, 10 mM sodium molybdate, 1 mM PMSF) to determine the equilibrium dissociation constant (Kd) of [3H]mibolerone. Protein was incubated with increasing concentrations of [3H]mibolerone with and without a high concentration of unlabeled mibolerone at 4° C. for 18 h in order to determine total and non-specific binding. Non-specific binding was then subtracted from total binding to determine specific binding and non-linear regression for the ligand binding curve with one site saturation was used to determine the Kd of mibolerone. |
| Affinity data for this assay | |
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