100.0 MB (3.1 MB compressed)
6827 x 5120 pixels
57.9 x 43.4 cm ⏐ 22.8 x 17.1 in (300dpi)
JUAN GAERTNER / SCIENCE PHOTO LIBRARY JUAN GAERTNER / SCIENCE PHOTO LIBRARY
Illustration showing the structure of an antibody, or immunoglobulin, molecule. These Y-shaped molecules have two arms that can bind to specific antigens, for instance viral or bacterial proteins. In doing so, they mark the antigen for destruction.
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