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An Antibody bNab that can Attack HIV in New Ways

Broadly neutralizing antibodies to HIV-1 envelope glycoprotein are being evaluated as therapeutics to prevent or treat HIV-1 infection. Structural analysis of one such antibody, 8ANC195, revealed a new conformation of the envelope protein. The image shows the X-ray crystal structure of 8ANC195 in complex with the gp120 subunit of the envelope protein. The background shows schematic representations of HIV-1 virus particles studded with envelope proteins being recognized by 8ANC195 antibodies. Credit: Louise Scharf/Caltech

Broadly neutralizing antibodies to HIV-1 envelope glycoprotein are being evaluated as therapeutics to prevent or treat HIV-1 infection. Structural analysis of one such antibody, 8ANC195, revealed a new conformation of the envelope protein. The image shows the X-ray crystal structure of 8ANC195 in complex with the gp120 subunit of the envelope protein. The background shows schematic representations of HIV-1 virus particles studded with envelope proteins being recognized by 8ANC195 antibodies. Credit: Louise Scharf/Caltech

Broadly neutralizing antibodies (bNAbs) are thought to be the future for treating and preventing HIV infections. A bNAb recently characterized by researchers can neutralize the virus in several different states – increasing the antibody’s promise as a therapeutic.

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