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Schematic representation of the neurotoxin cluster organization and their relative location in the two strains sequenced in this study. The closed chromosomal genomes were rotated to start at the dnaA gene. (A) In strain 83F, the neurotoxin gene clusters were located at the chromosome inserted at operons oppA/brnQ and arsC. (B) In strain CDC51232, the neurotoxin gene clusters were located inserted at two separate locations on the large plasmid (270 kb).
