Often called the guardian of the genome or the master tumor suppressor gene, p53 has long been known to keep tumors at bay. Now, recent research shows that three microRNAs help p53 out, especially in preventing lung cancer. Previous studies focused mainly on the coding genes that p53 regulates, but recently, researchers have begun to take an interest in non-coding genes’ roles in tumor development as well, says Guido Bommer, a postdoctoral fellow in Eric Fearon’s lab at the University of Michigan.

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Researchers have treated an X-linked genetic disease affecting three babies in utero, Stat News reports.

The Associated Press reports that the US Centers for Disease Control and Prevention is beefing up sequencing as a tool to investigate foodborne illnesses.

Researchers have sequenced samples from ancient toilets to study past eating habits and health, NPR reports.

In Nature this week: ash dieback disease fungal genome, and more.