Type: Term Pronunciation: av′i-din Definitions: 1. A glycoprotein, obtained from egg whites, that possesses a high affinity for biotin. Labeled avidin is allowed to bind to biotin-tagged antibodies to amplify antigen-antibody reactions that may be difficult to visualize. Ingestion of avidin ca...
Found op http://www.medilexicon.com/medicaldictionary.php?t=8879
Avidin is a tetrameric biotin-binding protein produced in the oviducts of birds, reptiles and amphibians deposited in the whites of their eggs. In chicken egg white, avidin makes up approximately 0.05% of total protein (approximately 1.8 mg per egg). The tetrameric protein contains four identical s...
Found op http://en.wikipedia.org/wiki/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.
Found op http://www.encyclo.co.uk/visitor-contributions.php
<protein> 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. ... (18 Nov 1997) ...
Found op http://www.mondofacto.com/facts/dictionary?avidin
(from the article `biotin`) ...appeared with the discovery in 1927 that the addition of uncooked egg white to a diet that is otherwise adequate produces toxicity and disease. ... Avidin is a glycoprotein that combines specifically with biotin, a vitamin. In animals fed large amounts of raw egg white...
Found op http://www.britannica.com/eb/a-z/a/130
avidin 1. A protein found in egg white that inactivates the vitamin biotin. 2. A protein found in uncooked egg white that binds to and inactivates biotin. An abundance of avidin in the diet can result in a deficiency of biotin. 3. A protein, found in the white of egg, that combines with and preven...
Found op http://www.wordinfo.info/words/index/info/view_unit/4291/
A constituent protein of egg whites that can impair absorption of the vitamin biotin.
Found op http://www.thehorse.com/Glossary.xhtml?L=A
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