This Week in PNAS

Unintentional physical interactions between proteins crowded together in the same cell can influence proteome evolution and function, according to a study in the early, online edition of the Proceedings of the National Academy of Sciences. An international team led by investigators in the UK looked at relationships between the three-dimensional structure of proteins and their abundance.

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In a survey, about half of Canadian government scientists say they still feel as though they cannot speak freely, ScienceInsider reports.

The Atlantic reports that biohacker Josiah Zayner regrets injecting himself with the CRISPR gene-editing tool on stage.

Clinicians in China are moving ahead with a number of CRISPR trials, NPR reports, as the US embarks on its first.

In Nature this week: genomic approaches applied to study Neolithic and Bronze Age Europeans, and more.