Word: toxinã
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Reptiles and mammals may represent different classes in the animal kingdom, but researchers in the Department of Organismic and Evolutionary Biology have found that similar molecular changes cause both a lizard and a shrew to produce a toxin??€”a discovery that may shed light on similar changes that occur in other animals...
...anthrax spores contained in a series of mailings across the U.S., according to Lewis C. Cantley, senior author of the study and chief of the Division of Signal Transduction at Beth Israel. The deceased victims were successfully rid of anthrax bacteria by antibiotics, thus proving that buildups of anthrax toxin??€”which would not have been counteracted by the antibiotics—must have been the cause of death...
Collier published a scientific paper in this month’s issue of Nature Biotechnology in which he describes the ability of a protein he discovered to protect rats from anthrax infection. The protein blocks the anthrax toxin??€™s path into cells...
Working with Mallinckrodt Professor of Chemistry and Chemical Biology George M. Whitesides, Collier bound multiple copies of the protein to a flexible backbone. The connected proteins block the toxin??€™s entrance into the cell. Separately, Collier has constructed a mutant protein that actually integrates itself into the pore that the toxin enters, blocking its action...
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