Streptavidin, R-Phycoerythrin Conjugate (SAPE) - premium grade - 1 mg/mL
Invitrogen™
Streptavidin, R-Phycoerythrin Conjugate (SAPE) - premium grade - 1 mg/mL
The R-phycoerythrin (R-PE) conjugate of streptavidin comprises a biotin-binding protein (streptavidin) covalently attached to a fluorescent label (R-phycoerythrin). Streptavidin hasRead more
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Catalog number S21388
Price (USD)/ 1 mL
708.65
Online exclusive
754.00 
Save 45.35 (6%)
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Add to cart
Price (USD)/ 1 mL
708.65
Online exclusive
754.00 
Save 45.35 (6%)
Add to cart
Streptavidin, R-Phycoerythrin Conjugate (SAPE) - premium grade - 1 mg/mL
Catalog numberS21388
Price (USD)/ 1 mL
708.65
Online exclusive
754.00 
Save 45.35 (6%)
-
Add to cart
The R-phycoerythrin (R-PE) conjugate of streptavidin comprises a biotin-binding protein (streptavidin) covalently attached to a fluorescent label (R-phycoerythrin). Streptavidin has a very high binding affinity for biotin, and a conjugate of streptavidin is commonly used together with a conjugate of biotin for specific detection of a variety of proteins, protein motifs, nucleic acids, and other molecules (for example, a biotinylated primary antibody bound to a protein target can be detected with a fluorescently labeled streptavidin). Streptavidin R-PE is very valuable in biotin-streptavidin detection protocols developed for flow cytometry, microplate assays, and microarrays. This R-PE streptavidin conjugate is a high-purity product (purity confirmed by HPLC) and is supplied as 1 mL of a 1 mg/mL solution.

Important Features of Streptavidin RPE:
Ex/Em maxima of ∼ (496, 546, 565/578) nm
5 to 10 times brighter than organic dyes
Very high solubility in aqueous solutions
Free of all unconjugated streptavidin; and mostly free of unconjugated R-PE
Ideal for flow cytometry, microplate assays, and microarrays

Properties of R-phycoerythrin
R-PE has a quantum efficiency of 78%, making it an incredibly bright reagent, useful where high sensitivity is needed. Because of poor photostability, however, it is not recommended for fluorescence microscopy.

Find Biotinylated Conjugates
We offer an extensive line of biotinylated conjugates for use in biotin-streptavidin detection strategies.
• Use the primary antibody search tool to find biotinylated primary antibodies
• Use the secondary antibody selector tool to find biotinylated secondary antibodies and biotinylated anti-dye and anti-hapten antibodies

For Research Use Only. Not intended for any animal or human therapeutic or diagnostic use.

Related Links:

Learn more about Avidin-Biotin Detection

Learn more about the practical applications for Streptavidin R-PE
For Research Use Only. Not for use in diagnostic procedures.
Specifications
Concentration1 mg/mL
ConjugateR-phycoerythrin
Quantity1 mL
Shipping ConditionWet Ice
FormLiquid
Product TypeStreptavidin Conjugate (fluorescent)
Unit Size1 mL
Contents & Storage
Store in refrigerator (2–8°C) and protect from light.