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This preparation of Streptavidin is isolated from Streptomyces avidinii and provided as a powder, lyophilized from distilled water. Purity is reported upon assay and activity is measured based on biotin binding ability.
As a PRIMARY MANUFACTURER, Scripps is able to offer research-scale quantities of high quality antigens and antibodies, as presented on this website, yet also large, manufacturing-scale quantities. Materials are produced, packaged, and shipped from our facility in San Diego, California.