- L5 (See other available formats)
- Other Names
- FLAG tag
- Rat IgG2a, λ
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- Product Citations
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The DYKDDDDK tag, commonly referred to as Sigma®'s FLAG® Tag, is often used as a protein modification in order to simplify the labeling and detection of proteins.This unique amino acid sequence allows for specific antibody detection in western blotting, immunoprecipitation, and immunostaining techniques.Due to the short sequence, this modification is not likely to affect the structure or function of the modified proteins.Product Details
- DYKDDDDK tag epitope
- Antibody Type
- Host Species
- DYKDDDDK-tagged mouse Langerin
- 0.2 µm filtered in phosphate-buffered solution, pH 7.2, containing no preservative. Endotoxin level is <0.01 EU/µg of the protein (<0.001 ng/µg of the protein) as determined by the LAL test.
- The Ultra-LEAF™ (Low Endotoxin, Azide-Free) antibody was purified by affinity chromatography.
- The antibody is bottled at the concentration indicated on the vial, typically between 2 mg/mL and 3 mg/mL. Older lots may have also been bottled at 1 mg/mL. Please contact technical support for concentration and total µg amount, or use our Lookup tool if you have a lot number.
- Storage & Handling
- The antibody solution should be stored undiluted between 2°C and 8°C. This Ultra-LEAF™ solution contains no preservative; handle under aseptic conditions.
WB - Quality tested
IP, ICC, ELISA, FC, Purification - Reported in the literature, not verified in house
- Recommended Usage
Each lot of this antibody is quality control tested by Western blotting. For Western blotting, suggested working dilution(s): Use 5 µg per 5 ml antibody dilution buffer for each mini-gel. It is recommended that the reagent be titrated for optimal performance for each application.
- Application Notes
The L5 clone has been demonstrated to have 2-8 fold better sensitivity in WB than another commonly used antibody clone, M2.
(PubMed link indicates BioLegend citation)
- Park SH, et al. 2008. J Immunol Methods. 331:27.
- Moon SH, et al. 2010. J. Biol Chem. 285:12935. PubMed
- Sasaki M, et al. 2011. J. Biol Chem. 286:39370. PubMed
- Sonder SU, et al. 2012. J Immunol. 188:5906. PubMed
- Jiang Y, et al. 2013. Int Immunol. 25:235. PubMed
- Zuo X, et al. 2014. PLoS One. 9:84748. PubMed
- Toyo-Oak K, et al. 2014. J Neurosci. 34:12168. PubMed
AB_2810691 (BioLegend Cat. No. 637327)
AB_2810692 (BioLegend Cat. No. 637328)
- Biology Area
- Cell Biology
- Antigen References
1. Einhauer A. 2001. J. Biochem. Biophys. Methods. 49:455.
2. Knappik A and Pluckthun A. 1994. Biotechniques. 17:754.
- Gene ID
- View information about DYKDDDDK on UniProt.org
- Does BioLegend test each Ultra-LEAF™ antibody by functional assay?
No, BioLegend does not test Ultra-LEAF™ antibodies by functional assays unless otherwise indicated. Due to the possible complexities and variations of uses of biofunctional antibodies in different assays and because of the large product portfolio, BioLegend does not currently perform functional assays as a routine QC for the antibodies. However, we do provide references in which the antibodies were used for functional assays and we do perform QC to verify the specificity and quality of the antibody based on our strict specification criteria.
- Do you guarantee that your antibodies are totally pathogen free?
BioLegend does not test for pathogens in-house aside from the GoInVivo™ product line. However, upon request, this can be tested on a custom basis with an outside, independent laboratory.
- Does BioLegend test each Ultra-LEAF™ antibody for potential pathogens?
No, BioLegend does not test for pathogens in-house unless otherwise indicated. However, we can recommend an outside vendor to perform this testing as needed.
- Have you tested this Ultra-LEAF™ antibody for in vivo or in vitro applications?
We don't test our antibodies for in vivo or in vitro applications unless otherwise indicated. Depending on the product, the TDS may describe literature supporting usage of a particular product for bioassay. It may be best to further consult the literature to find clone specific information.
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