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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A fire at a Manchester hospital may have destroyed lab equipment and data, the Guardian reports.

Researchers generate a genetic database from skeletal remains from the 1845 Franklin Expedition to the Arctic, Live Science reports.

Researchers in China have begun another trial using CRISPR/Cas9 approaches in cancer patients, according to the Wall Street Journal.

In Science this week: human DNA found in sediments from archeological sites lacking bones, and more.