HIV Envelope Protein Opens Up (IMAGE)

University of California - Davis

HIV Envelope Protein Opens Up

Caption

HIV envelope protein before (orange) and after (green) attaching to a human T cell. Top: The orange shape shows the three-armed HIV envelope protein, seen from above, before attaching to the CD4 protein. The green shape shows how it opens and twists after attaching to CD4 (dark blue ribbon on the green shape). The image at bottom shows a side view of the HIV protein before (orange) and after (green).

Credit

R. Holland Cheng

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