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Nature 447, xiii (14 June 2007) | doi:10.1038/7146xiiia; Published online 13 June 2007

Making the Paper: Stewart Fisher

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Broad-acting enzyme makes specific ulcer target.

Making the less obvious choice can sometimes pay off. It certainly worked for a team of researchers hunting for an antibacterial agent that would act specifically against Helicobacter pylori, the bacterium that causes stomach ulcers.