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An enterotoxin is a protein exotoxin released by a microorganism that targets the intestines. [1] They can be chromosomally or plasmid encoded. [ 2 ] They are heat labile (> 60 °C), of low molecular weight and water-soluble.
In the field of molecular biology, enterotoxin type B, also known as Staphylococcal enterotoxin B (SEB), is an enterotoxin produced by the gram-positive bacteria Staphylococcus aureus. It is a common cause of food poisoning , with severe diarrhea , nausea and intestinal cramping often starting within a few hours of ingestion. [ 1 ]
This allows the body to detect the harmful toxin if it is encountered later, and to eliminate it before it can cause harm to the host. Toxins of this type include cholera toxin, pertussis toxin, Shiga toxin and heat-labile enterotoxin from E. coli.
In molecular biology, the heat-labile enterotoxin family includes Escherichia coli heat-labile enterotoxin (Elt or LT) and cholera toxin (Ctx) secreted by Vibrio cholerae. lt is so named because it is inactivated at high temperatures.
Different STs recognize distinct receptors on the surface of animal cells and thereby affect different intracellular signaling pathways. For example, STa enterotoxins bind and activate membrane-bound guanylate cyclase, which leads to the intracellular accumulation of cyclic GMP and downstream effects on several signaling pathways.
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Clostridium enterotoxin is a nine-stranded beta sheet sandwich in shape. It has been determined that it is very similar to other spore-forming bacteria. [1] The binding site is between beta sheets eight and nine. This allows the human claudin-3,4,6,7,8 and 14 to bind but not 1,2,5, and 10.
Travis Hunter will arrive at the NFL's annual scouting combine listed as a cornerback. Hunter's emergence as potentially the top defensive back and the top receiver in this year's draft class has ...