avidin
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av·i·din
(av'i-din),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 can cause a biotin deficiency.
Synonym(s): antibiotin
[L. avidus, eager fr. aveo, to crave + -in]
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avidin
(ăv′ĭ-dĭn)n.
A protein found in uncooked egg white that binds to and inactivates biotin.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.
avidin
A 68-kD tetrameric glycoprotein found in egg white which has a high affinity for biotin, an association used in immunology for the avidin-biotinylated immunoperoxidase method. When eggs are eaten in excess, avidin-biotin avidity may cause biotin deficiency.Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.
av·i·din
(av'i-din)Glycoprotein obtained from egg whites that possesses a high affinity for biotin; ingestion can cause biotin deficiency.
[L. avidus, eager fr. aveo, to crave + -in]
Medical Dictionary for the Dental Professions © Farlex 2012