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Molecular Probes™ Streptavidin, Alexa Fluor™ 647 Conjugate

Alexa Fluor™ 647 streptavidin comprises a biotin-binding protein (streptavidin) covalently attached to a fluorescent label (Alexa Fluor™ dye).

£301.00 - £343.00

Specifications

Conjugate Alexa Fluor 647
Product Line Alexa Fluor™
Product Type Streptavidin Conjugate (fluorescent)
Label or Dye Alexa Fluor
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Products 2
Product Code Brand Form Quantity Price Quantity & Availability  
Product Code Brand Form Quantity Price Quantity & Availability  
10349222
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Molecular Probes™
S32357
Liquid 0.5 mL
£343.00
0.50mL
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10308062
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Molecular Probes™
S21374
Solid 1 mg
£301.00
1mg
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Description

Description

Alexa Fluor™ 647 streptavidin comprises a biotin-binding protein (streptavidin) covalently attached to a fluorescent label (Alexa Fluor™ dye). 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). Strategies similar to this are used in many detection protocols including western blots, flow cytometry, imaging and microscopy, and microplate assays. Alexa Fluor™ dye streptavidin conjugates are supplied as 1 mg lyophilized product or in 0.5 mL volumes of a 2 mg/mL solution.

Important Features of Alexa Fluor™ 647 Streptavidin Conjugates:
Alexa Fluor™ 647 streptavidin conjugate has Ex/Em maxima of ∼ (650/668)
Bright, photostable fluorescence
High solubility in aqueous solutions
Available in multiple colors
Ideal for western blots, flow cytometry, imaging and microscopy, microplate assays and more

Properties of Alexa Fluor™ Dyes
Alexa Fluor™ dyes are organic fluorescent dyes developed for better performance in imaging and other labeling protocols and exhibit improved photostability and brightness and improved solubility in aqueous solutions. Available in a broad range of colors, these dyes are a good choice for most imaging applications.

Blocking Endogenous Biotin
Naturally occurring biotins can interfere with biotin-streptavidin detection schemes. For experiments involving fixed and permeabilized cells, try our Endogenous Biotin-Blocking Kit (Cat. No. E21390) to minimize this interference.

Consult user Manual for solubility instructions.

Specifications

Specifications

Alexa Fluor 647
Alexa Fluor™
Streptavidin Conjugate (fluorescent)
Alexa Fluor
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Product Certifications

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