Invitrogen™ Streptavidin, Alexa Fluor™ 488 conjugate, 0.5 mL

Invitrogen™ Streptavidin, Alexa Fluor™ 488 conjugate, 0.5 mL

Alexa Fluor® 488 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

Features

• Alexa Fluor® 488 streptavidin conjugate has Ex/Em maxima of ∼ (495/519)
• 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