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A limited number of sites on the HIV-1 Envelope protein are vulnerable to broadly neutralizing antibodies (bnAbs). One of these sites, the membrane proximal external region (MPER), is located at the C-terminus of the gp41 ectodomain (gp41ecto). This highly conserved sequence is bound by several well-characterized bnAbs. Efforts to produce a gp41 immunogen are in part hampered by the MPER’s hydrophobicity...
We describe a new method for the development of a preventive inactivated-HIV vaccine, based on photo-inactivation of HIV reverse transcriptase (RT), which preserves both the conformational and functional integrity of viral surface proteins. The RT of HIV-1 was selectively targeted for inactivation using a photo-labeled compound with specific affinity for HIV-1 RT. The photo-labeled virions were then...
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