Rift Valley Virus Fusion Protein (IMAGE) Institut Pasteur Caption Model of the Rift Valley virus fusion protein interacting with a cell membrane (in white and green), obtained using molecular dynamics. The enlargement shows the lipid head 'recognition pocket', with the protein represented at the surface. Credit © Pablo Guardado-Calvo, Institut Pasteur Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.