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The lethality of the anthrax disease is due to the bacterium's two principal virulence factors: the poly-D-glutamic acid capsule, which protects the bacterium from phagocytosis by host neutrophils; and the tripartite protein toxin, called anthrax toxin, consisting of protective antigen (PA), edema factor (EF), and lethal factor (LF). [44]
Anthrax is a disease caused by Bacillus anthracis, a spore-forming, Gram positive, rod-shaped bacterium (Fig. 1).The lethality of the disease is caused by the bacterium's two principal virulence factors: (i) the polyglutamic acid capsule, which is anti-phagocytic, and (ii) the tripartite protein toxin, called anthrax toxin.
The pXO1 plasmid (182 kb) contains the genes that encode for the anthrax toxin components: pag (protective antigen, PA), lef (lethal factor, LF), and cya (edema factor, EF). These factors are contained within a 44.8-kb pathogenicity island (PAI). The lethal toxin is a combination of PA with LF and the edema toxin is a combination of PA with EF.
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Pathogenic bacteria are bacteria that can cause disease. [1] This article focuses on the bacteria that are pathogenic to humans. Most species of bacteria are harmless and many are beneficial but others can cause infectious diseases. The number of these pathogenic species in humans is estimated to be fewer than a hundred. [2]
Anthrax toxin receptor 1 (ANTXR1 or also known asTEM8) is a protein that in humans is encoded by the ANTXR1 gene. [ 5 ] [ 6 ] [ 7 ] Its molecular weight is predicted as about 63kDa. The protein encoded by this gene is a type I transmembrane protein and is a tumor-specific endothelial marker that has been implicated in colorectal cancer.
Anthrax is a bacterial disease that is caused by Bacillus anthracis bacteria. It can infect animals when they breathe in or ingest spores in contaminated soil, plants, or water.
Anthrax vaccines are used for both livestock and human immunization. One of the most used anthrax vaccines today is based on the Sterne strain, in the form of a live-spore vaccine for animals. A vaccine with live spores is dangerous for humans, so vaccines based on the secreted toxin protein, protective antigen (PA), have been explored.