- Propensity for a leucine zipper-like domain of human immunodeficiency virus type 1 gp41 to form oligomers correlates with a role in virus-induced fusion rather than assembly of the glycoprotein complex. Wild, C., Dubay, J.W., Greenwell, T., Baird, T., Oas, T.G., McDanal, C., Hunter, E., Matthews, T. Proc. Natl. Acad. Sci. U.S.A. (1994)