Purified anti-DYKDDDDK Tag Antibody

Pricing & Availability
L5 (See other available formats)
Regulatory Status
Other Names
FLAG tag
Rat IgG2a, λ
Ave. Rating
Submit a Review
Product Citations
Cell extracts from untransfected 293T cells (lane 1) or 293T cells transfected with a plasmid encoding DYKDDDDK-tagged protein (lane 2), using anti-DYKDDDDK, clone L5.
  • L5_WB_100608
    Cell extracts from untransfected 293T cells (lane 1) or 293T cells transfected with a plasmid encoding DYKDDDDK-tagged protein (lane 2), using anti-DYKDDDDK, clone L5.
Compare all formats
Cat # Size Price Save
637319 25 µg ¥19,580
637301 200 µg ¥55,660
637302 500 µg ¥84,040
637303 1 mg ¥104,500
637304 5 mg ¥171,600

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
Technical data sheet

Product Details

Verified Reactivity
Epitope tag
Reported Reactivity
Species independent
Antibody Type
Host Species
DYKDDDDK-tagged mouse Langerin
Phosphate-buffered solution, pH 7.2, containing 0.09% sodium azide.
The antibody was purified by affinity chromatography.
0.5 mg/ml
Storage & Handling
The antibody solution should be stored undiluted between 2°C and 8°C.

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.

Application References

(PubMed link indicates BioLegend citation)
  1. Park SH, et al. 2008. J Immunol Methods. 331:27.
  2. Moon SH, et al. 2010. J. Biol Chem. 285:12935. PubMed
  3. Sasaki M, et al. 2011. J. Biol Chem. 286:39370. PubMed
  4. Sonder SU, et al. 2012. J Immunol. 188:5906. PubMed
  5. Jiang Y, et al. 2013. Int Immunol. 25:235. PubMed
  6. Zuo X, et al. 2014. PLoS One. 9:84748. PubMed
  7. Toyo-Oak K, et al. 2014. J Neurosci. 34:12168. PubMed
Product Citations
  1. DaRosa PA et al. 2018. Molecular cell. 72(4):753-765 . PubMed
  2. Mamedov T, et al. 2019. PLoS One. 14:e0213438. PubMed
  3. Asano Y, et al. 2021. Nat Commun. 12:4372. PubMed
  4. Zhu C, et al. 2020. Cell Rep. 31:107745. PubMed
  5. Willcox CR, et al. 2020. Immunity. 51(5):813-825.e4.. PubMed
  6. Bala Tannan N, et al. 2018. PLoS Genet. 14:e1007153. PubMed
  7. Chaouat AE, et al. 2021. PLoS Pathog. 17:e1010175. PubMed
  8. Das A, et al. 2016. J Biol Chem. 291: 6096 - 6110. PubMed
  9. Wroblewska A et al. 2018. Cell. 175(4):1141-1155 . PubMed
  10. Yang M, et al. 2020. Appl Environ Microbiol. 86:00:00. PubMed
  11. Mamedov T, et al. 2017. PLoS One.. 10.1371/journal.pone.0183589. PubMed
  12. Wang X, et al. 2018. Pathog Dis. 76:. PubMed
  13. Sundaram A et al. 2017. eLife. 6 pii: e27187. PubMed
  14. Sánchez-Bellver L, et al. 2022. Int J Mol Sci. 23:. PubMed
  15. He H, et al. 2021. J Immunother Cancer. 9:. PubMed
  16. Sims S, et al. 2021. Adv Virol. 2021:5569844. PubMed
  17. Wen XY, et al. 2018. JCI Insight. 3:. PubMed
  18. Nabar NR, et al. 2022. Autophagy. 18:204. PubMed
  19. Bonet-Ponce L, et al. 2020. Sci Adv. 6:00. PubMed
  20. Ren S, et al. 2016. PLoS One. 11: 0152721. PubMed
  21. Jiang Y, et al. 2013. Int Immunol. 25:235. PubMed
  22. Toyo-oka K, et al. 2014. J Neurosci. 34:12168. PubMed
  23. Shi Y, et al. 2016. Cell Death Differ. 10.1038/cdd.2016.110. PubMed
  24. Sønder S, et al. 2012. J Immunol. 188:5906. PubMed
  25. Velay F, et al. 2022. Plant Methods. 18:69. PubMed
  26. Adam S, et al. 2021. Nat Cancer. 2:1357. PubMed
  27. Golec E, et al. 2019. FASEB J. 33:12425. PubMed
  28. Yin J, et al. 2015. Brain. 138: 2553-2570. PubMed
  29. Park GY, et al. 2020. Immune Netw. e43:20. PubMed
  30. Karunakaran MM, et al. 2020. Immunity. 52:487. PubMed
  31. Zang RX, et al. 2022. ACS Omega. 7:34378. PubMed
  32. Kim J, et al. 2021. J Cell Biol. 220:. PubMed
  33. Moon S, et al. 2010. J Biol Chem. 285:12935. PubMed
  34. Yuan Y, et al. 2020. Nat Commun. 11:1472. PubMed
  35. Zhang S, et al. 2020. Nat Commun. 11:1312. PubMed
  36. Okamoto Y, et al. 2021. J Cell Sci. 134:. PubMed
  37. Fujii T, et al. 2021. Bone Res. 9:4. PubMed
  38. Zuo X, et al. 2014. PLoS One. 9:84748. PubMed
  39. Carlevaro G, et al. 2019. Methods Mol Biol. 1955:135. PubMed
  40. Liu X, et al. 2021. Hum Mol Genet. 30:30. PubMed
  41. Hu J, et al. 2021. Cell Death Dis. 12:391. PubMed
  42. Sandhu R, et al. 2021. Proc Natl Acad Sci U S A. 118:. PubMed
  43. Stroukov W, et al. 2019. Front Genet. 10:163. PubMed
  44. Cross SH, et al. 2020. PLoS Genet. 16:e1008583. PubMed
  45. Takahashi K, et al. 2020. Cell Reports. 31(9):107715. PubMed
  46. Wu G, et al. 2021. Nat Cancer. 2:1170. PubMed
  47. Xu C, et al. 2019. J Immunol. 203:2141. PubMed
  48. Driskill JH, et al. 2021. Genes Dev. 35:495. PubMed
  49. Liu X, et al. 2019. Nat Commun. 10:3020. PubMed
  50. Mamedov T, et al. 2019. Sci Rep. 9:9868. PubMed
  51. Figueroa F, et al. 2021. Front Cell Dev Biol. 9:739445. PubMed
  52. Sharma VP, et al. 2021. Nat Commun. 12:7300. PubMed
  53. Yang Q, et al. 2020. Elife. 9:00. PubMed
  54. Torres-Ayuso P, et al. 2021. Cancer Discovery. 11(6):1411-1423. PubMed
AB_2749907 (BioLegend Cat. No. 637319)
AB_1134266 (BioLegend Cat. No. 637301)
AB_1134268 (BioLegend Cat. No. 637302)
AB_1134265 (BioLegend Cat. No. 637303)
AB_1134267 (BioLegend Cat. No. 637304)

Antigen Details

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

Related FAQs

I am unable to detect FLAG tag with L5 antibody clone by IP and/or western blotting.
Some points to consider here include
  • Sometimes changing tag location (form N-terminus to C-terminus or vice versa) or use tandem FLAG tag (3x) can also increase the chances of tag detection
  • Tagged protein is either not expressed or lowly expressed
  • Always include a positive control to make sure the process of working fine
Does anti tag antibody recognize the tag sequence at N terminal or C terminal or within the fusion protein?
Our antibody can recognize the fusion protein with tag either at N-terminus or C-terminus or within the protein if the tag is exposed.
Go To Top Version: 4    Revision Date: 09/21/2023

For Research Use Only. Not for diagnostic or therapeutic use.


This product is supplied subject to the terms and conditions, including the limited license, located at www.biolegend.com/terms) ("Terms") and may be used only as provided in the Terms. Without limiting the foregoing, BioLegend products may not be used for any Commercial Purpose as defined in the Terms, resold in any form, used in manufacturing, or reverse engineered, sequenced, or otherwise studied or used to learn its design or composition without express written approval of BioLegend. Regardless of the information given in this document, user is solely responsible for determining any license requirements necessary for user’s intended use and assumes all risk and liability arising from use of the product. BioLegend is not responsible for patent infringement or any other risks or liabilities whatsoever resulting from the use of its products.


BioLegend, the BioLegend logo, and all other trademarks are property of BioLegend, Inc. or their respective owners, and all rights are reserved.


8999 BioLegend Way, San Diego, CA 92121 www.biolegend.com
Toll-Free Phone: 1-877-Bio-Legend (246-5343) Phone: (858) 768-5800 Fax: (877) 455-9587

This data display is provided for general comparisons between formats.
Your actual data may vary due to variations in samples, target cells, instruments and their settings, staining conditions, and other factors.
If you need assistance with selecting the best format contact our expert technical support team.


Login / Register
Remember me
Forgot your password? Reset password?
Create an Account