This Week in Nature

In early online publication in Nature, Harvard's Bill Hahn is senior author on work that used an RNAi screen to find synthetic lethal partners of oncogenic KRAS -- "gene products that, when inhibited, result in cell death only in the presence of an oncogenic allele." They found that the IkappaB kinase TBK1 was needed in cells with mutant KRAS, and by suppressing this gene they induced apoptosis in human cancer cells that depend on oncogenic KRAS expression.

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Researchers find that historical factors influence which genes are the most highly studied, the Atlantic reports.

The US National Science Foundation's new sexual harassment policy is to go into effect next month, according to Nature News.

Researchers report using genotyping to tie together illegal ivory shipments and trace them back to a handful of cartels, the New York Times reports.

In Nature this week: genomic ancestry analysis of Sardinians, current noncoding mutations in colorectal cancer, and more.