Contact: Chad Boutin
National Institute of Standards and Technology (NIST)
Caption: Anthrax toxins are sequestered from the cell surface (top) in a bubble-like endosome. The toxins have been thought to escape the endosome by threading their way through a hole in the endosome (lower left), but a new hypothesis suggests they may rupture the endosome (lower right).
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Related news release: New explanation for key step in anthrax infection proposed by NIST and USAMRIID