A strain of E. coli bacteria called enterohemorrhagic E. coli (EHEC) is known to cause several gastrointestinal disorders, which include bloody diarrhea and abdominal cramps, by damaging the intestinal lining. When accompanied with fatal systemic complications, it can even cause acute renal failure in children. The EHEC exerts these deadly effects by producing the Shiga toxin (Stx), of which the Stx2a subtype is particularly virulent and deadly. Compounds that can inhibit these toxins are, therefore, desirable as potential therapeutics against EHEC infections.
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Source: Phys.org