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Nitric oxide (NO) has diverse roles in intercellular communication and (at higher levels) in immune-mediated cell killing. NO… Expand The threat of free radical damage is opposed by coordinated responses that modulate expression of sets of gene products. In… Expand Gross overproduction of the manganese-containing superoxide dismutase in Escherichia coli, by virtue of a multicopy plasmid… Expand Escherichia coli responds to superoxide-generating agents by inducing approximately 40 proteins. We have identified a genetic… Expand