LAGUNA DESIGN / SCIENCE PHOTO LIBRARY LAGUNA DESIGN / SCIENCE PHOTO LIBRARY
Anthrax toxin prepore. Molecular model of protective antigen (PA) from anthrax (Bacillus anthracis) bacteria complexed with an anthrax toxin receptor, forming a prepore (hole, centre). 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 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.
Model release not required. Property release not required.