| Assay Method Information | |
| | Estrone Detection Assay for Evaluation of HSD17I313 Activity |
| Description: | Reactions were terminated by the addition of two volumes of acetonitrile (MeCN; LCMS grade; CAS #75/05/8) containing deuterated (D4)-E1 used as internal standard (Clear Synth; #CS-T-54273; 500 ng/mL final concentration). Samples were applied to pre-prepared Bond Elut-C18 extraction cartridges (3 mL; Agilent; Ser. No. 12/102,028), washed and eluted in MeCN. Eluates were dried under nitrogen and re-suspended in 60% methanol (LCMS grade methanol; CAS #67/56/1) before submission for analysis. Aqueous linearity for E2 and E1 were included for quantification.[0357]Analysis of samples was undertaken on a XBridge BEH C18 column (Waters; #186003033) using 0.1% Diethyl Amine in MeCN (mobile phase A; DEA CAS #109-89-7) and 0.1% Diethyl Amine in milli-Q water (mobile phase B) in a 3 min gradient allowing 25% B. Analytes were detected in negative mode using MRM analysis, with E2 having a RT of 1.85 min and E1 having a RT of 2 min. |
| Affinity data for this assay | |
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