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Structural basis for broad HIV-1 neutralization by the MPER-specific human broadly neutralizing antibody LN01

Pinto, Dora ; Fenwick, Craig ; Caillat, Christophe ; Silacci, Chiara ; Guseva, Serafima ; Dehez, François ; Chipot, Christophe ; Barbieri, Sonia ; Minola, Andrea ; Jarrossay, David ; Tomaras, Georgia D. ; Shen, Xiaoying ; Riva, Agostino ; Tarkowski, Maciej ; Schwartz, Olivier ; Bruel, Timothée ; Dufloo, Jérémy ; Seaman, Michael S. ; Montefiori, David C. ; Lanzavecchia, Antonio ; Corti, Davide ; Pantaleo, Giuseppe ; Weissenhorn, Winfried

In: Cell host & microbe, 2019, vol. 26, no. 5, p. p. 623-637.e8

Potent and broadly neutralizing antibodies (bnAbs) are the hallmark of HIV-1 protection by vaccination. The membrane-proximal external region (MPER) of the HIV-1 gp41 fusion protein is targeted by the most broadly reactive HIV-1 neutralizing antibodies. Here, we examine the structural and molecular mechansims of neutralization by anti-MPER bnAb, LN01, which was isolated from lymph-node-derived...