PE Streptavidin (High Concentration)

Pricing & Availability
Regulatory Status
Other Names
Streptavidin-Phycoerythrin, SAv-PE
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Product Citations
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405245 500 µg ¥45,150

Streptavidin binds to biotin with high affinity. Streptavidin-Phycoerythrin (PE) is useful for detecting biotinylated antibodies. The excitation of PE by 488 nm laser light induces a light emission maximum of 575 nm.

Product Details
Technical data sheet

Product Details

Verified Reactivity
Human, Mouse, Rat, All Species
Phosphate-buffered solution, pH 7.2, containing 0.09% sodium azide.
Streptavidin is conjugated with PE under optimal conditions.
1.0 mg/ml (concentration relates to the Streptavidin only component of the conjugate)
Storage & Handling
The streptavidin-PE solution should be stored undiluted between 2°C and 8°C, and protected from exposure to light. Do not freeze.

FC - Quality tested

ICFC - Verified

Recommended Usage

This streptavidin product is quality control tested by immunofluorescent staining with flow cytometric analysis. The concentration provided is based upon molecular mass of streptavidin independent of any additional molecular mass that might be added by the PE conjugation. For flow cytometric staining, the suggested use of this reagent is ≤0.06 µg per million cells in 100 µl volume. It is recommended that the reagent be titrated for optimal performance for each application.

Excitation Laser
Blue Laser (488 nm)
Green Laser (532 nm)/Yellow-Green Laser (561 nm)
Application Notes

Streptavidin-Phycoerythrin (PE) is useful as a second step reagent for indirect immunofluorescent staining, when used in conjunction with biotinylated primary antibodies. The average molecular weight of Streptavidin-PE is 360 kD and Streptavidin alone is 52 kD.

Application References

(PubMed link indicates BioLegend citation)
  1. Chappaz S, et al. 2007. Blood doi:10.1182/blood-2007-02-074245.
  2. Nishimoto KP,et al. 2008. J. Immunol. 181:4010.PubMed
  3. Niki T, et al. 2009. J. Biol. Chem. 284:32344. PubMed
  4. Shibui A, et al. 2011. Exp Parasitol. 129:318. PubMed
  5. Scatizzi JC, et al. 2012. J. Immunol. 188:3307. PubMed
  6. Yamakawa N, et al. 2012. Int Immunol. 25:45. PubMed
  7. Shibata T, et al. 2012. Int Immunol. 24:613. PubMed
  8. Baccala R, et al. 2012. J. Immunol. 189:5976. PubMed
  9. Grevers LC, et al. 2013. Ann Reheum Dis. 72:278. PubMed
  10. Woo SJ, et al. 2013. J Leukoc Biol. 93:363. PubMed
  11. Ashbaugh JJ, et al. 2013. J. Immunol. 190:4525. PubMed
  12. Reading JL, 2013. J. immunol. 190:4542. Pubmed.
  13. Kanno A, et al. 2013. Int Immunol. 25:413. PubMed
  14. Gunaydin G, et al. 2014. Vaccine. 32:470. PubMed
  15. Lyngaa R, et al. 2014. Clin Cancer Res. 20:1768. PubMed
  16. Datta S, et al. 2014. J Leukoc Biol. 95:853. PubMed
Product Citations
  1. McDonald J, et al. 2016. J Immunol Methods. 433:6-16. PubMed
  2. Malone M, et al. 2022. Methods Mol Biol. 2574:183. PubMed
  3. Shilts J, et al. 2022. Nature. 608:397. PubMed
  4. Shilts J, et al. 2021. Sci Rep. 0.745138889. PubMed
  5. Anisul M, et al. 2021. Elife. 10:. PubMed

Related FAQs

What type of PE do you use in your conjugates?
We use R-PE in our conjugates.
Go To Top Version: 4    Revision Date: 06/18/2019

For research use only. Not for diagnostic use. Not for resale. BioLegend will not be held responsible for patent infringement or other violations that may occur with the use of our products.


*These products may be covered by one or more Limited Use Label Licenses (see the BioLegend Catalog or our website, BioLegend products may not be transferred to third parties, resold, modified for resale, or used to manufacture commercial products, reverse engineer functionally similar materials, or to provide a service to third parties without written approval of BioLegend. By use of these products you accept the terms and conditions of all applicable Limited Use Label Licenses. Unless otherwise indicated, these products are for research use only and are not intended for human or animal diagnostic, therapeutic or commercial use.


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