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Molecular Probes™ Streptavidin, R-Phycoerythrin Conjugate (SAPE) - 1 mg/mL

Streptavidin, R-Phycoerythrin Conjugate (SAPE) - 1 mg/mL

Brand:  Molecular Probes™ S866

4451.49 SEK valid until 2022-06-30
Use promo code "16496" to get your promotional price.

Additional Details : Weight : 0.00454kg

Product Code. 10655783

  • 5030.00 SEK / 1mL

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For Research Use Only. All usage must comply with product instructions.



Streptavidin is a bacterially derived biotin-binding protein that exhibits less nonspecific binding than avidin. Phycoerythrin also known as R-Phycoerythrin (RPE) is an intensely bright phycobiliprotein isolated from red algae with absorption maxima at approximately 496, 546 and 565 nm, and a fluorescence emission maximum of ∼578 nm. Used in flow, microplate assays and microarrays, this has remained one of our top three selling products for decades—a proven performer that you can trust.

Important Features of Streptavidin RPE
  • Biotin Detection with high quantum efficiency photoprotein
  • 5–10 times brighter than organic fluors
  • High water solubility
  • Ideal for Flow, microarrays and microplate assays
  • Also available as Premium grade with higher purity confirmed by HPLC (S21388)

    Streptavidin and RPE
    The high affinity of avidin, an egg-white protein, for biotin was first exploited in histochemical applications in the mid-1970s. Avidin, and its bacterial counterpart, streptavidin (from Streptomy cesavidinii), have since become standard reagents for diverse detection schemes. Streptavidin, a nonglycosylated 52,800-dalton protein, exhibits less nonspecific binding than avidin.

    Rhodophyta Phycoerythrin (RPE) has a MW of 240,000 Daltons and has a quantum efficiency of 78% making it an incredibly bright reagent. However, the photostability is extremely poor and is not traditionally recommended for microscopy. But the broad absorption and bright orange signal may it ideal for flow, microplate and microarray applications whenever sensitive detection of biotins is required.

    Learn more about avidin biotin detection in general

    Learn more about SAV-RPE
  • Specifications


    1 mg/mL
    Wet Ice
    Streptavidin Conjugate (fluorescent)
    Special Offers

    Special Offers

    For Research Use Only. Not for use in diagnostic procedures.