This Week in PLoS

University of California, Berkeley scientist Mark Dayel is first author on work that used computer simulation to study actin in eukaryotic cells. To understand how cells move, he and his team created an Accumulative Particle-Spring model that builds on a previous model. "The APS model explains observed transitions between smooth and pulsatile motion as well as subtle variations in network architecture caused by differences in geometry and conditions," says the abstract.

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Chinese state news agency Xinhua reports that a preliminary investigation has found He Jiankui performed his gene-editing work illegally.

John Mendelsohn, a former president of the University of Texas MD Anderson Cancer Center, has died, the New York Times reports.

Identical twins receive different estimates of ancestry from the same direct-to-consumer genetic testing firms, CBC reports.

In PNAS this week: chromosomal features of maize, adaptations in the vinous-throated parrotbill, and more.