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Fusion Promotion by a Paramyxovirus Hemagglutinin-Neuraminidase Protein: pH Modulation of Receptor Avidity of Binding Sites I and II

14 Jun 2007

Abstract excerpt

Paramyxoviruses, including the childhood respiratory pathogen human parainfluenza virus type 3 (HPIV3), possess an envelope protein hemagglutinin-neuraminidase (HN) that has receptor-cleaving (neuraminidase), as well as receptor-binding, activity. HN is a type II transmembrane glycoprotein, present on the surface of the virus as a tetramer composed of two dimers. HN is also essential for activating the fusion...

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PMID: 17567695
DOI: 10.1128/jvi.00888-07

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