This Week in Science

In this week's Science, a team from the University of Texas describes how an enzyme that enables retroviruses to incorporate their genomes into host cells can be modified to scan for errors in the DNA they create. Reverse transcriptases use an RNA template to generate double-stranded complementary DNA that can integrate into host genomes, but, unlike DNA polymerases, are not believed to be able to proofread these sequences.

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A new study finds that a placental protein linked with preeclampsia can be targeted by RNA silencing, according to the New Scientist.

A settlement is expected in a Duke University lawsuit hinging on using falsified data to win grants, Retraction Watch and Science report.

In PNAS this week: approach for analyzing the expression of endogenous retroviruses, circular RNAs that influence host-virus interactions, and more.

A phylogenetic analysis finds that the rare hemimastigotes form their own supra-kingdom, CBC reports.