The structure of a prokaryotic viral envelope protein expands the landscape of membrane fusion proteins 由 El Omari, K, Li, S, Kotecha, A, Walter, T, Bignon, E, Harlos, K, Somerharju, P, De Haas, F, Clare, D, Molin, M, Hurtado, F, Li, M, Grimes, J, Bamford, D, Tischler, N, Huiskonen, J, Stuart, D, Roine, E