proteins (FLAG® Affinity Gels, FLAG® tag, 3xFLAG® tag, DYKDDDDK tag)
affinity chromatography: suitable
immunoprecipitation (IP): suitable
4% agarose bead; 45-165μm bead size
≥0.6 mg/mL, gel binding capacity
Looking for similar products? Visit Product Comparison Guide
NONH for all modes of transport
If available for a given product, the recommended re-test date or the expiration date can be found on the Certificate of Analysis.
If you have a 3X FLAG-tagged protein, then you will need to use the 3X FLAG peptide. If you have a 1X FLAG-tagged protein, you can use the 1X FLAG peptide or the 3X FLAG peptide. We have not noticed a significant difference in elution efficiency by using a 3X FLAG peptide on a 1X FLAG-tagged protein.
Elution with the peptide is the most gentle method. Acid elution (0.1 M glycine-HCL pH 3.5) is a more stringent method of elution, and should be evaluated for its effect on your protein if it is to be used in downstream applications. Boiling the resin in sample buffer is the most denaturing condition. If this condition is used, the resin cannot be re-used, due to the presence of SDS and/or reducing agents.
As a result of the conjugation, there may be some M2 antibody that is not conjugated to the resin, but is associated with the resin and may appear in acid elutions as heavy and light chain when using the anti-mouse IgG conjugated secondary antibody. We recommend a acid wash (0.1 M glycine-HCL pH 3.5) and neutralization of the resin (do not allow the acid wash to sit on the resin longer than 20 minutes) prior to applying the lysate. Another way to avoid this is to use a directly conjugated FLAG antibody for detection such as product A8592 ant-FLAG M2 HRP, or the rabbit anti-FLAG polyclonal antibody, F7425.
One way to remove non-specific proteins is to pre-bind the protein lysate with unconjugated resin. We recommend product 4B200 for this purpose. Other methods would be to increase the stringency of the washes by increasing salt concentration (the resin can tolerate up to 1M NaCl) or including detergents that are compatible with the resin.
The binding capacity of the resin must be ? 0.6 mg/mL to meet specifications. This capacity will vary from lot to lot.
The lot specific COA document can be found by entering the lot number above under the "Documents" section.
There are several ways to find pricing and availability for our products. Once you log onto our website, you will find the price and availability displayed on the product detail page. You can contact any of our Customer Sales and Service offices to receive a quote. USA customers: 1-800-325-3010 or view local office numbers.
Transportation information can be found in Section 14 of the product's (M)SDS.To access the shipping information for this material, use the link on the product detail page for the product.
Ask a Scientist here.
Research. Development. Production.
We are a leading supplier to the global Life Science industry with solutions and services for research, biotechnology development and production, and pharmaceutical drug therapy development and production.