JMJD2b active human

Human JMJD2B, also known as JHDM3B and KDM4B (GenBank Accession No. NM_015015), amino acids 2-500 with N-terminal GST-tag, MW=83 kDa, expressed in Sf9 cells using a Baculovirus expression system.

0.32 pmole/min/μg Assay conditions: 10μl reaction mix containing assay buffer with 20 mM HEPES (pH 7.4), 50 mM NaCl, 1mM TCEP, 500 μM a-ketoglutarate, 25 μM iron, 2mM ascorbic acid, 0.01% Tween20, 0.5 μM biotinylated peptide substrate, and JMJD2B (2 – 10ng) added to the wells. Add antibody against di-methylated K9 peptide. Incubate for 30 min, then Streptavidin conjugated secondary antibody followed by Alpha Screening detection.

Useful for the study of enzyme kinetics, screening inhibitors, and selectivity profiling.

Formulated in: 40 mM Tris-HCl, pH 8.0, 110 mM NaCl, 2.2 mM KCl, 3 mM DTT, 20% Glycerol.

At least 6 months at –80°C. Avoid freeze/thaw cycles. Storing diluted enzyme is not recommended, if necessary, use carrier protein (BSA 0.1 – 0.5%).