A STRUCTURAL BASIS FOR CLOSTRIDIAL NEUROTOXIN TARGET SPECIFICITY

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Artikelnummer:
741818
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    A STRUCTURAL BASIS FOR CLOSTRIDIAL NEUROTOXIN TARGET SPECIFICITY

    This thesis describes structural and biochemical§studies conducted on the most potent toxins known to§man--clostridial neurotoxins. These remarkably§well-adapted proteins block neurotransmitter release§resulting in the paralytic conditions botulism andtetanus. The toxins deliver highly specialized§proteases inside nerve cell where they act on§essential neuronal proteins called SNAREs with§unparalleled selectivity. Here, x-ray crystallography§is employed to obtain a high-resolution structure of§a botulinum neurotoxin protease in complex with its§target SNARE. The determinants of the protease''s§exquisite specificity are shown to be an array of§previously unknown binding sites that enhance§catalytic efficiency. Additionally, structural§studies of tetanus neurotoxin were conducted and are§described within. The function of clostridial§neurotoxins is beautifully reflected in their§architecture; the molecular structures described here§reveal how these amazing proteins seek and destroy§their intracellular targets. Ultimately, this§research could be applied to the development of novel§and extremely specific inhibitors of these§extraordinarily powerful neurotoxins.
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    Autor
    Bindung
    Taschenbuch
    Verlag
    VDM Verlag Dr. Müller
    ISBN / EAN
    9783639104646
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