The CBX1 Inhibitor Screening Assay Kit is designed to measure the inhibition of CBX1 binding to its substrate. The kit comes in a convenient AlphaLISA® format, with enough biotinylated peptide substrate, assay buffer, detection buffer and purified GST-tagged CBX1 chromodomain to perform a total of 384 enzyme reactions. The key to the kit is the specific binding of the CBX1 chromodomain to the methylated-peptide substrate. With this kit, only three simple steps on a microtiter plate are required. First, a sample containing CBX1 and an inhibitor of choice is incubated with the biotinylated substrate for one hour. Next, acceptor beads are added, then donor beads, followed by reading the Alpha-counts.
Kaustov, L., et al. J. Biol. Chem. 2011; 286(1):521-9.
Storage/Stability
Stable at least 6 months from date of receipt, when stored as directed
Instructions for Use
See data sheet for detailed protocol.
Shipping Temperature
-80°C
Notes
AlphaScreen® and AlphaLISA® are registered trademarks of PerkinElmer, Inc.
Contraindications
Green and blue dyes that absorb light in the AlphaScreen signal emission range (520-620 nm), such as Trypan Blue. Avoid the use of potent singlet oxygen quenchers such as sodium azide (NaN3) or metal ions (Fe2+, Fe3+, Cu2+, Zn2+ and Ni2+). The presence of >1% RPMI 1640 culture medium leads to a signal reduction due to the presence of excess biotin and iron in this medium. MEM, which lacks these components, does not affect AlphaScreen assays.
Warnings
Avoid freeze/thaw cycles
Disclaimers and Limitations
BPS Bioscience assay kits are validated using the listed components according to our specific protocol. Any deviations to kit components or protocols, such as using different proteins, cell/tissue lysates, or buffers (including using the same component from other commercial sources) will void any warranties on the performance of the assay kit and is not recommended.
End-users should immediately report any issues to [email protected] upon receipt of the kit, such as missing components, damaged vials, no dry ice, etc.
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