This Week in Nature

In a paper published online in advance in Nature this week, an international team led by investigators at Umeå University in Sweden describes a "novel pathway of small guide RNA maturation and the first example of a host factor — RNase III — required for bacterial RNA-mediated immunity against invaders." Using RNA-seq on Streptococcus pyrogenes, the team identified a "trans-encoded small RNA with 24-nucleotide complementarity to the repeat regions of crRNA precursor

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The UK's Human Fertility and Embryology Authority calls for consumer genetic testing companies to warn customers that testing could uncover family secrets, according to the Guardian.

The New York Times reports that United Nations delegates have been discussing how to govern the genetic resources of the deep sea.

Researchers have transplanted edited cells into mice that appear to combat cocaine addiction, New Scientist reports.

In PNAS this week: analysis of proteolytic enzymes secreted by circulating tumor cells, phylogenetic study of Fv1 evolution, and more.