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Novus Biologicals™ Streptavidin - R-Phycoerythrin Protein

Streptavidin is purified from bacterium Streptomyces avidinii, is tetrameric protein that is composed of identical subunits, with tetramer having molecular weight of approximately 53kda

$229.00 - $429.00

Specifications

Product Type Source: E. coli
Storage Requirements Store at -20° C.
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Products 2
Catalog Number Mfr. No. Quantity Price Quantity & Availability  
Catalog Number Mfr. No. Quantity Price Quantity & Availability  
20-121-000 View Documents Novus Biologicals™
20121000
1mg Each for $429.00
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20-120-100 View Documents Novus Biologicals™
20120100
0.1mg Each for $229.00
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Description

Description

Streptavidin is purified from the bacterium Streptomyces avidinii. It is a tetrameric protein that is composed of identical subunits, with the tetramer having a molecular weight of approximately 53kDa. Each subunit binds one biotin molecule with a very high degree of specificity and affinity. The Kd for this interaction is in the region of 10-15M. R-Phycoerythrin (R-PE) is a 240kDa phycobiliprotein that is isolated from red algae. R-PE has a bright red-orange fluorescence with a high quantum yield, and is brighter than other conventional fluophores and phycobiliproteins. The absorbance spectrum of R-PE covers a range of excitation wavelengths, which provides an advantage for multi-color immunofluorescent staining or cell-sorting. The emission maximum of R-PE is at 575nm. R-PE is used for fluorescence-based detection, often in assays which require high sensitivity.
Specifications

Specifications

Source: E. coli
Store at -20° C.

For research use only.

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