Assay Report Card

Basic Information

ID: ALA3705485

Type: Binding

Description: Mass Spectrometry Assay : The EGLN-1 (or EGLN-3) enzyme activity is determined using mass spectrometry (matrix-assisted laser desorption ionization, time-of-flight MS, MALDI-TOF MS—for assay details, see reference (Greis et al, 2006). The reaction is conducted in a total volume of 50 uL containing TrisCl (5 mM, pH7.5), ascorbate (120 μM), 2-oxoglutarate (3.2 μM), HIF-1α (8.6 μM), and bovine serum albumin (0.01%). The enzyme, quantity predetermined to hydroxylate 20% of substrate in 20 minutes, is added to start the reaction. Compounds are prepared in dimethyl sulfoxide at 10-fold final assay concentration. After 20 minutes at room temperature, the reaction is stopped by transferring 10 μL of reaction mixture to 50 μL of a mass spectrometry matrix solution (α-cyano-4-hydroxycinnamic acid, 5 mg/mL in 50% acetonitrile/0.1% TFA, 5 mM NH4PO4). Two microliters of the mixture is spotted onto a MALDI-TOF MS target plate for analysis with an Applied Biosystems.

Organism: Homo sapiens

Activity Charts

Compound Summary

Parent Molecular WeightALogPPolar Surface Area
320.732.012.01
320.732.012.01
311.301.911.91
286.291.581.58
285.302.182.18
300.311.671.67
320.732.012.01
297.271.821.82
306.711.921.92
306.711.921.92
306.711.921.92
314.342.392.39
290.251.411.41
330.342.062.06
320.732.232.23
319.751.581.58
311.301.911.91
354.330.540.54
297.271.821.82
329.310.460.46
383.401.591.59
369.381.501.50
340.300.450.45
369.381.711.71