Expedeon’s Streptavidin-Fluorescein conjugates are manufactured using our Lightning-Link® antibody labeling technology, therefore providing extremely high quality, stable conjugates.
For added flexibility we provide the conjugates in two different pack sizes of 100ug and 1mg. Furthermore the conjugates are freeze-dried so shipping at ambient temperature is not a problem.
Host species: E.coli
Product size: 100ug and 1mg Streptavidin
Buffer: Phosphate Buffer
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.
Fluorescein is a synthetic organic fluorophore, with an excitation wavelength of 494nm and a maximal emission of 520nm.
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