FIG. 20.

An exploded view of the SFV structure (132) around a single spike showing the modular nature of the virion structure. The projecting regions of the spikes are shown in blue. The skirt of protein which connects the spikes is shown in yellow. The cavity at the center of the spike is indicated by an arrow. The outer and inner leaflets of the bilayer and the transmembrane regions which span them are shown in red. The portion of the capsid which interacts with these transmembrane regions is shown in green. Adapted from reference 132 with the permission of the publisher.