... likely dic-tated by the physical properties of lipid bilayers and by the necessity to follow the least energy-costly membranerestructuring pathway leading to fusion without disrupt-ing the ... anchor themselves to the target membrane through their hydrophobicsegments and then fold back, bringing the viral and cellular membranes together and forcing theirmerger. However, the pathways of ... Institute of Human Virology, Department of Microbiology and Immunology, University of Maryland School of Medicine, 725 W. Lombard St, Baltimore, MD 21201, USAEmail: Gregory B Melikyan - gmelikian@ihv.umaryland.eduAbstractEnveloped...