Streptavidin and Avidin Conjugates

Streptavidin conjugates—using the bacterial counterpart of the biotin-binding protein avidin—are extensively used in life science research for secondary detection in fluorescence microscopy and immunofluorescence, ELISA, flow cytometry, in situ hybridization, microarray analysis, immunocytochemistry, and immunohistochemistry. Most protocols involve applying a biotinylated probe to a sample and then detecting the bound probe with streptavidin conjugated with a fluorophore or enzyme. Life Technologies offers a wide selection of Molecular Probes®  non fluorescent and fluorescent streptavidin conjugates as well as biotin and biotin conjugates that are validated in multiple applications.

Fluorescent Streptavidin and Avidin Conjugates

Fluorescent conjugates of streptavidin and avidin

Fluorescent conjugates of streptavidin and avidin biotin-binding proteins from Life Technologies™ are developed with our Molecular Probes® fluorescence technologies, providing you with the largest breadth and highest quality of products available.

Learn More about our Fluorescent Streptavidin and Avidin Conjugates:

Enzyme-Labeled Streptavidin and Avidin Conjugates

Enzyme-labeled conjugates of streptavidin and avidin biotin-binding proteins (including streptavidin horseradish peroxidase (HRP) and streptavidin alkaline phosphatase (AP)) from Life Technologies provide tools needed for ELISA, chemiluminescence detection, and western blot analysis as well as immunohistochemistry and immunocytochemistry.

Biotin and Biotinylated Conjugates

Biotinylation reagents provide the "tag" that transforms poorly detectable molecules into probes that can be recognized by a labeled detection reagent or an affinity-capture matrix. Once tagged with biotin or a hapten, a molecule of interest—such as an antibody, lectin, drug, polynucleotide, polysaccharide, or receptor ligand—can be used to probe complex solutions, cells, and tissues, as well as protein and nucleic acid blots and arrays. Life Technologies offers a broad range of products for labeling your molecules or biomolecules that are already labeled with biotin.