Ribbon diagram of a heptameric, 63
kDa cleavage fragment (PA63) of the protective antigen (PA) protein, produced by
Bacillus anthracis as part of the
anthrax toxin. The
quaternary structure is that of a pre-pore, which later forms a channel that allows other toxins into the
cytosol of the target
cell, so the
pathogen can cause damage to the
host.
Photo credit: [1]
![[1]](http://www3.niaid.nih.gov/NR/rdonlyres/3C434CF7-E288-49D9-9937-AE5A6D90C8DB/0/ANTHRA_1.JPG){kind=link}
Ribbon diagram of a heptameric, 63
kDa cleavage fragment (PA63) of the protective antigen (PA) protein, produced by
Bacillus anthracis as part of the
anthrax toxin. The
quaternary structure is that of a pre-pore, which later forms a channel that allows other toxins into the
cytosol of the target
cell, so the
pathogen can cause damage to the
host.
Photo credit: [1]