Abstract: Here we report the derivation of an HIV-1
gp120 variant,
H66N, that confers
envelope glycoprotein resistance to temperature extremes.
Abstract: The
H66N change also stabilizes the HIV-1
envelope glycoprotein complex once the CD4-bound state is achieved, decreasing the probability of CD4-induced inactivation and revealing the enhancing effects of soluble CD4 binding on
HIV-1 infection.
Abstract: The
H66N change decreases the spontaneous sampling of the CD4-bound conformation by the HIV-1
envelope glycoproteins, thus diminishing CD4-independent infection.