25.3 MB (539.6 KB compressed)
3543 x 2495 pixels
30.0 x 21.1 cm ⏐ 11.8 x 8.3 in (300dpi)
DR TIM EVANS / SCIENCE PHOTO LIBRARY DR TIM EVANS / SCIENCE PHOTO LIBRARY
Interferon gamma. Molecular model showing the secondary structure of the interferon gamma dimer (bright pink and gold and pale pink and beige) attached to the alpha chain of the interferon gamma receptor (blue, green and purple). Interferon gamma is produced by certain immune cells (T cells, dendritic cells and NK cells) as part of the immune response to invading pathogens and tumours. It is able to directly inhibit viral replication and also prompts neighbouring cells to produce protective enzymes and activates immune system cells.
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