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MB Sample ID: SA160608
Local Sample ID: | Diazinon_0_1_hilicpos_fusion.mzXML |
Subject ID: | SU001792 |
Subject Type: | Cultured cells |
Subject Species: | Homo sapiens |
Taxonomy ID: | 9606 |
Genotype Strain: | Pooled Liver S9 fractions |
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Sample Preparation:
Sampleprep ID: | SP001798 |
Sampleprep Summary: | Each test compound stock solution was diluted to 0.3 mM with water prior to incubation with S9 enzymes. The NADPH regenerating system was reconstituted with addition of 3.5 ml of water to make a nal volume of 5 ml. Cofactors were combined to form a 4X cofactor stock as follows, prior to addition into the reaction mixture: 10 mM UDPGA, 2 mM GSH, 2 mg/ml PAPS, 0.1 mM acetyl-CoA, and NADPH regenerating system (1 mM NADP, 5 mM glucose-6-phosphate, 1 unit glucose-6-phosphate dehydrogenase). Reactions were carried out at 30 °C on 96-well plates (Fig. 1). S9 fraction was diluted 10-fold in water immediately before mixing with 0.2 M Tris-Cl, pH 7.5/2 mM MgCl2 and 0.3 mM of the xenobiotic solution in a 1:1:1 ratio (15 µL each). and incubated at 30 °C for 5 min. To start the reaction, 15 µL of 4X cofactor stock was added, and incubation was carried out at 30 °C for the indicated times. To terminate the reaction, we added a three-fold volume of acetonitrile, covered the plate with paralm, vortexed, and froze at − 20 °C to precipitate insoluble materials such as protein. After thawing and centrifugation of the incubation plate, the supernatants were transferred into polypropylene autosampler vials, which were stored at − 20 °C until instrumental analysis |