Name : Streptavidin

Product Concentration :

Background :
Streptavidin is a biotin-binding protein found in the culture broth of the bacterium Streptomyces avidinii. Streptavidin can bind to four moles of biotin per mole of protein,and it shows extremely high affinity, approximately 10,000-15,000 Da. Streptavidin lacks the carbohydrate side chains present on avidin and has an isoelectric point of 6.5 to avidin’s 10 far closer to that at which most useful biological interactions occur. As a result, Streptavidin frequently exhibits much lower non-specific binding than avidin does.

Biological Activity :
>15 U/mg protein, 1 U is definedas the quantity of protein that binds 1 microgramme

expression system :
E. coli

Tag :

Protein Accession No. :

Synonyms :

Molecular Weight :

Purity :
> 95% as analyzed by SDS-PAGE

Product Concentration :
Lyophilized from a 0.22 μm filtered solution in 10 mM potassium phosphate buffer, pH 6.5-7.0.

Storage and Stability :
The powder may be stored at 4°C for several weeks. For long-term storage, store at -20°C.

MedChemExpress (MCE) recombinant proteins include: cytokines, enzymes, growth factors, hormones, receptors, transcription factors, antibody fragments, etc. They are often essential for supporting cell growth, stimulating cell signaling pathways, triggering or inhibiting cell differentiation; and are useful tools for elucidating protein structure and function, understanding disease onset and progression, and validating pharmaceutical targets. At MedChemExpress (MCE), we strive to provide products with only the highest quality. Protein identity, purity and biological activity are assured by our robust quality control and assurance procedures.
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