| Assay Method Information | |
| | Inhibitory Assay |
| Description: | Human PIK3CA mutation-positive breast cancer cell line MDA-MB-453 cells were subcutaneously implanted into nude mice, MDA-MB-453 tumor was excised, a mitochondria extraction solution (0.25 M Sucrose, 2 mM EDTA, 10 mM Tris/HCl pH 7.5) of 9 times of tumor weight was added thereto, and crushing was carried out thereon. The reaction mixture was centrifuged at 600×g and 4° C. for 10 minutes to obtain a supernatant, and the supernatant was centrifuged at 14000×g and 4° C. for 10 minutes, thereby obtaining a pellet. The pellet was suspended in 10 mM Tris/HCl pH 7.5 of 5 times of the excised tumor weight, thereby obtaining a human mitochondrial suspension.Next, 25 μl of the human mitochondrial suspension per 1 ml of Complex I activity measurement solution (200 mM potassium phosphate pH 7.6, 0.35% Bovine Serum Albumin (BSA), 60 μM 2,6-dichlorophenol-indophenol, 70 μM decylubiquinone, 1 μM antimycin) was added. |
| Affinity data for this assay | |
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