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Title: Timing is everything: Fine-tuned molecular machines orchestrate paramyxovirus entry

The Paramyxoviridae include some of the great and ubiquitous disease-causing viruses of humans and animals. In most paramyxoviruses, two viral membrane glycoproteins, fusion protein (F) and receptor binding protein (HN, H or G) mediate a concerted process of recognition of host cell surface molecules followed by fusion of viral and cellular membranes, resulting in viral nucleocapsid entry into the cytoplasm. The interactions between the F and HN, H or G viral glycoproteins and host molecules are critical in determining host range, virulence and spread of these viruses. Recently, atomic structures, together with biochemical and biophysical studies, have provided major insights into how these two viral glycoproteins successfully interact with host receptors on cellular membranes and initiate the membrane fusion process to gain entry into cells. These studies highlight the conserved core mechanisms of paramyxovirus entry that provide the fundamental basis for rational anti-viral drug design and vaccine development. - Highlights: • New structural and functional insights into paramyxovirus entry mechanisms. • Current data on paramyxovirus glycoproteins suggest a core conserved entry mechanism. • Diverse mechanisms preventing premature fusion activation exist in these viruses. • Precise spacio-temporal interplay between paramyxovirus glycoproteins initiate entry.
Authors:
 [1] ;  [2] ;  [1] ;  [3]
  1. Department of Molecular Biosciences, Northwestern University, Evanston, IL 60208-3500 (United States)
  2. Department of Structural Biology and Program in Immunology, Stanford University School of Medicine, Stanford, CA 94305 (United States)
  3. (United States)
Publication Date:
OSTI Identifier:
22470172
Resource Type:
Journal Article
Resource Relation:
Journal Name: Virology; Journal Volume: 479-480; Other Information: Copyright (c) 2015 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
60 APPLIED LIFE SCIENCES; ANIMALS; CYTOPLASM; DESIGN; DISEASES; DRUGS; GAIN; GLYCOPROTEINS; MEMBRANES; MOLECULES; RECEPTORS; SURFACES; VACCINES; VIRULENCE; VIRUSES