Organization and regulation of the neurotoxin genes in Clostridium botulinum and Clostridium tetani.


Botulinum and tetanus neurotoxins are structurally and functionally related 150 kDa proteins that are potent inhibitors of neuroexocytosis. Botulinum neurotoxin associates with non-toxic proteins to form complexes of various sizes. The botulinum neurotoxin and non-toxic protein genes are clustered in a DNA segment called the botulinum locus. This locus is… (More)


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