dictionary help| defensins | medical dictionary |
<biochemistry> Family of small (30-35 residue) cysteine rich cationic proteins found in vertebrate phagocytes (notably the azurophil granules of neutrophils) and active against bacteria, fungi and enveloped viruses.
May constitute up to 5% of the total protein. Insect defensins have some sequence homology with the vertebrate forms.
This entry appears with permission from the Dictionary of Cell and Molecular Biology
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