A small bacterial protein that binds with high affinity to the vitamin biotin. This streptavidin-biotin combination can be used to link molecules such as radioisotopes and monoclonal antibodies together. These bound products have the property of being attracted to, and attaching to, cancer cells, rather than normal cells. The radiolabeled products are more easily removed from the body, thus decreasing their toxicity.

English dictionary of cancer terms . 2015.

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  • Streptavidin — is a 53,000 dalton [ [ NeutrAvidin Agarose and other NeutrAvidin Beads ] ] tetrameric protein purified from the bacterium Streptomyces avidinii . It finds wide use in molecular biology… …   Wikipedia

  • Streptavidin — (Streptomyces avidinii) Monomere Untereinheit von Streptavidin im Bändermodell mit geb …   Deutsch Wikipedia

  • streptavidin — streptavidin. См. стрептавидин. (Источник: «Англо русский толковый словарь генетических терминов». Арефьев В.А., Лисовенко Л.А., Москва: Изд во ВНИРО, 1995 г.) …   Молекулярная биология и генетика. Толковый словарь.

  • streptavidin — A bacterial protein used as a probe in immunologic assays because of its strong affinity and specificity for biotin; s. is used as a bridge to link a chromogen to a biotinylated substrate specific for the subst …   Medical dictionary

  • streptavidin — Analogue of avidin. A protein isolated from Streptomycetes avidiniithat has a high affinity for biotin. Used to detect biotin markers …   Dictionary of molecular biology

  • streptavidin — noun A tetrameric protein purified from Streptomyces avidinii that binds very tightly to the vitamin biotin …   Wiktionary

  • streptavidin — strep·ta·vi·din …   English syllables

  • streptavidin — A microbial protein with a high affinity for the B complex vitamin biotin. The specific interaction of these two molecules has been exploited in labelling technology and in applications where a specific molecule needs to be captured or purified …   Glossary of Biotechnology

  • streptavidin — 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… …   Useful english dictionary

  • CC49-streptavidin — A substance that is being studied in the treatment of cancer. It is made by combining the monoclonal antibody CC49 with a chemical called streptavidin. It can find tumor cells that have the protein TAG 72 on their surface, including colon,… …   English dictionary of cancer terms

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