This Week in Science

In this week's Science, a team led by researchers from Montana State University publish the crystal structure of the CRISPR RNA-guided surveillance complex in Escherichia coli. CRISPR is part of an adaptive immune system in bacteria and is being adapted as a research tool and potential therapeutic. In E. coli, CRISPR-derived RNAs form a protein complex known as Cascade that helps detect invading DNA.

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NPR reports that Turkish high school students will no longer study evolution.

Researchers report they sequenced and identified plant species in an "al fresco" laboratory.

An Australian team searches for genetic alterations linked to depression in hopes of developing personalized treatments, the Sydney Morning Herald reports.

In PNAS this week: host contributors to typhoid fever risk, effects of obesity-related variants near TMEM18, and more.