avidin

avidin
Biotin-binding protein (68 kD) from egg-white. Binding is so strong as to be effectively irreversible - a diet of raw egg-white leads to biotin deficiency.

Dictionary of molecular biology. 2004.

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  • Avidin — (Gallus gallus) Bändermodell eines Avidin Dimer, mit gebundenem Biotin als Kalotten, nach …   Deutsch Wikipedia

  • avidin — [av′ə din] n. [ AVID + IN1: so named because of its peculiar biotin binding capacity] a protein in raw egg white that binds to biotin, making the biotin inactive in the body …   English World dictionary

  • Avidin — Biological Overview= Avidin is a tetrameric protein produced in the oviducts of birds, reptiles and amphibians which is deposited in the whites of their eggs. In chicken egg white, avidin makes up approximately 0.05% of total protein… …   Wikipedia

  • Avidin — A|vi|din [lat. avidus = gierig (wegen der hohen Affinität zu Biotin); ↑ in (3)], das; s: ein aus Hühnereiklar isolierbares, durch Kochen zerstörbares tetrameres Glykoprotein, MG 66 000, das ↑ Biotin in einem unverdaulichen Komplex bindet u.… …   Universal-Lexikon

  • avidin — avidinas statusas T sritis chemija apibrėžtis Kiaušinio baltymas. atitikmenys: angl. avidin rus. авидин …   Chemijos terminų aiškinamasis žodynas

  • avidin-biotin complex — (ABC), avidin biotin peroxidase complex a complex of avidin and biotinylated horseradish peroxidase that is added to a sample that has been treated with primary antibody specific for the antigen of interest and then with a biotinylated secondary… …   Medical dictionary

  • avidin — noun Etymology: from its avidity for biotin Date: 1941 a protein found in egg white that inactivates biotin by combining with it …   New Collegiate Dictionary

  • avidin — /av i din, euh vid in/, n. Biochem. a protein, found in the white of egg, that combines with and prevents the action of biotin, thus injuring the animal that consumes it in excess by producing biotin deficiency. [1940 45; AVID + (BIOT)IN; so… …   Universalium

  • avidin — noun A tetrameric protein produced in the oviducts of birds, reptiles and amphibians and deposited in the whites of their eggs …   Wiktionary

  • avidin — A glycoprotein, obtained from egg whites, which possesses a high affinity for biotin. Labeled a. is allowed to bind to biotin tagged antibodies in order to amplify antigen antibody reactions that may be difficult to visualize. Ingestion of a. can …   Medical dictionary

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