Читать книгу Principles of Virology - Jane Flint, S. Jane Flint - Страница 224

Animal viruses can have multiple receptor-binding sites on their surfaces. Receptor-binding sites for enveloped viruses are usually provided by oligomeric integral membrane glycoproteins that have been incorporated into the cell-derived membranes of virus particles. For nonenveloped viruses, this function is usually provided by one or more of the viral capsid proteins. Typically, these form projections from or indentations in the virus particle surface. The general mechanisms of virus-receptor interactions are illustrated by the best-studied examples described below.