Medical Dictionary

streptavidin

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noun strep·ta·vi·din \ˌstrep-ˈtav-əd-ən, -tə-ˈvīd-ən\

Medical Definition of streptavidin

  1. :  a protein similar to avidin that is produced by a bacterium of the genus Streptomyces (S. avidinii), has four identical subunits that each bind tightly to a molecule of biotin, and is used especially in the detection of molecules (as nucleic acids or antibodies) linked to a biotin label


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