LAGUNA DESIGN / SCIENCE PHOTO LIBRARY LAGUNA DESIGN / SCIENCE PHOTO LIBRARY
HIV-1 protease and inhibitor. Molecular model of the enzyme HIV-1 protease (purple and blue) bound to an inhibitor molecule (yellow). This enzyme, from HIV (human immunodeficiency virus), cleaves viral polyproteins into functional proteins that are essential for viral assembly and infectivity. It is composed of two identical subunits. This molecule is a target for AIDS drugs.
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