/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 named from its affinity for biotin]

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Universalium. 2010.

Look at other dictionaries:

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  • 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 — 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 — 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

  • 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

  • Avidin — Avi|din das; s <zu ↑...in> Eiweißkörper im Eiklar des rohen Hühnereies …   Das große Fremdwörterbuch

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