Streptavidin Protein-Europium chelate
Streptavidin Protein-Europium chelate (STN-NE113) is expressed from E. coli cells. It contains AA Ala 37 - Ser 163 (Accession # P22629-1).
Product Specifications
Background
Streptavidin is a 66KDa tetrameric protein purified from the bacterium Streptomyces avidinii, and exhibits high binding affinity to biotin. Each unit can bind one biotin. Horseradish peroxidase is metalloenzyme, a 44KDa glycoprotein. When incubate with substrates, it produces a coloured, fluorimetric, or luminescent derivatives, which can be detected and quantified. HRP conjugated Streptavidin is widely used for the detection and quantification of biotinylated proteins.
Specifications
This protein carries no "tag". The protein has a calculated MW of 13.8 kDa.
Expression Region
Ala 37 - Ser 163
Host
E. coli
Target
Streptavidin
Conjugation
Europium chelate Labeled
Tag
Native
Stability
-20°C to -70°C for 12 months in lyophilized state;
-70°C for 3 months under sterile conditions after reconstitution._x000D_For long term storage, the product should be stored at lyophilized state at -20°C or lower.
Endotoxin
1.0 EU per μg
Format
Powder
Buffer
200 mM PBS, 150 mM NaCl, pH5.5
Additives
Trehalose
Molecular Weight
13.8 kDa
Shipping Conditions
Room Temperature
Storage Conditions
-20°C
Documents
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