Crystal structure of the low-pH form of the vesicular stomatitis virus glycoprotein G.
Roche, S., Bressanelli, S., Rey, F.A., Gaudin, Y.(2006) Science 313: 187-191
- PubMed: 16840692 
- DOI: https://doi.org/10.1126/science.1127683
- Primary Citation of Related Structures:  
5I2M - PubMed Abstract: 
The vesicular stomatitis virus has an atypical membrane fusion glycoprotein (G) exhibiting a pH-dependent equilibrium between two forms at the virus surface. Membrane fusion is triggered during the transition from the high- to low-pH form. The structure of G in its low-pH form shows the classic hairpin conformation observed in all other fusion proteins in their postfusion conformation, in spite of a novel fold combining features of fusion proteins from classes I and II. The structure provides a framework for understanding the reversibility of the G conformational change. Unexpectedly, G is homologous to gB of herpesviruses, which raises important questions on viral evolution.
Organizational Affiliation: 
CNRS, Unité Mixte de Recherche (UMR) 2472, Institut Fédératif de Recherche (IFR) 115, Virologie Moléculaire et Structurale, 91198, Gif sur Yvette, France.