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单词 streptavidin
释义 strep·ta·vi·din
\ˌstrepˈtavədə̇n, -təˈvīdən\ noun
Etymology: New Latin strept- (from Streptomyces) + English avidin
: 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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