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defensin |
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defensin /de·fen·sin/ (de-fen´sin) any of a group of small antimicrobial cationic peptides occurring in neutrophils and macrophages.
defensin [difen′sin] a peptide with natural antibiotic activity found within human neutrophils. Three types of defensins have been identified, each consisting of a chain of about 30 amino acids. Similar molecules occur in white blood cells of other animal species. They show activity toward viruses and fungi, in addition to bacteria. Want to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit the webmaster's page for free fun content. |
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