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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
- Human, Mouse, Rat, All Species
- Phosphate-buffered solution, pH 7.2, containing 0.09% sodium azide.
- Streptavidin is conjugated with PE under optimal conditions. The solution is free of unconjugated PE.
- 0.2 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, ICFC - Quality tested
- 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.
(PubMed link indicates BioLegend citation)
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- Product Citations
- Gene ID
- View information about Streptavidin on UniProt.org
- What type of PE do you use in your conjugates?
- We use R-PE in our conjugates.
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