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Cobalt can be toxic and the way cells adapt to its presence is largely unknown. Here we carried out a transcriptomic analysis of Escherichia coli exposed to cobalt. A limited number of genes were either up‐ or downregulated. Upregulated genes include the isc and the nfuA genes encoding Fe/S biogenesis assisting factors, and the rcnA gene encoding a cobalt efflux system. Downregulated genes are implicated...
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