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Sigma Aldrich Fine Chemicals Biosciences Biotin 3-sulfo-N-hydroxysu10MG
Supplier: Sigma Aldrich Fine Chemicals Biosciences B516110MG

Biotinavidin second antibody signal systems involve the conjugation of biotin to a secondary antibody. Once the secondary antibody binds to a target primary antibody in an immunochemical assay the signal is developed by allowing avidin which has been conjugated to an enzyme or signal molecule to bind to the antibody associated biotin molecule.
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