AS&K VISUAL SCIENCE / SCIENCE PHOTO LIBRARY AS&K VISUAL SCIENCE / SCIENCE PHOTO LIBRARY
HIV particles. Computer artwork of HIV (human immunodeficiency virus) particles approaching a host cell (bottom). These particles (green and red) consist of an RNA (ribonucleic acid) core, surrounded by an icosahedral (20-sided) protein nucleocapsid (coat). The whole virus is enclosed in an envelope containing specific proteins. These are compatible with receptor proteins on the surface of the host cell (also green and red) and bind to them, enabling the virus to infect the cell and reproduce.
Model release not required. Property release not required.