Anthrax protective antigen molecule. Computer model showing the structure of a molecule of protective antigen (PA) produced by anthrax (Bacillus anthr

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Anthrax protective antigen molecule. Computer model showing the structure of a molecule of protective antigen (PA) produced by anthrax (Bacillus anthracis) bacteria. Anthrax employs a suite of three proteins, collectively termed anthrax toxin, that attack target organisms. Protective antigen is the first of these and works by providing a ready-made pore (hole, centre) in its victim's cell membrane, through which the other two proteins, edema factor and lethal factor (not shown), can be delivered into the cell's interior.

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Size: 4180px × 4180px
Photo credit: © LAGUNA DESIGN/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No

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