Scientists Block Viruses From Entering Cells
12th Sep 2005, 16:04 GMT
First identified more than 20 years ago at UCLA, defensins are peptides naturally produced by the immune system to ward off viruses. However, it was unclear how defensins worked. Now UCLA and NIH scientists have discovered that a specific defensin called retrocyclin-2 (RC2) binds to carbohydrate-containing proteins in cell membranes.
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