This Week in Nature

In Nature, researchers from the Massachusetts Institute of Technology and the University of California, San Francisco, describe the creation of genetic programs from layered logic gates in single cells. To do so, they developed a set of transcriptional AND gates in Escherichia coli, which integrate two promoter inputs and control one promoter output.

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This Week in Nature

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Harold Varmus, the director of the National Cancer Institute, has announced that he is stepping down after nearly five years.

In Nature this week: omic analysis of permafrost microbes, hookworm genome, and more.