HIV virus particle on red
HIV virus particle, the retrovirus that causes AIDS. The virus is coated by an envelope (yellowish green) that is derived from the host cell during budding. Beneath the envelope lies the matrix protein shell (blue) through which the core (pink) can be glimpsed. The virus is covered by projecting knobs or spikes that hrelp it to attach to host cells.
Illustration ID: HIV-virion-red-background
Illustration size: 17.5 Mpixels (50.1 MB uncompressed) - 5000x3500 pixels (16.6x11.6 in / 42.3x29.6 cm at 300 ppi)