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In PLoS Biology this week, investigators at St. Jude Children's Research Hospital show that the homeobox gene "Prox1 is required for granule cell maturation and intermediate progenitor maintenance during brain neurogenesis." Specifically, Prox1 — expressed in the dentate gyrus during embryonic development and adult neurogenesis — is expressed in intermediate progenitors, and "required for adult neural stem cell self-maintenance in the sub-granular zone," the authors write.

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The Washington Post reports that Herbert Tabor, who worked at the US National Institutes of Health for 77 years, has died at 101.

The World Bank is seeking approval for a $12 billion plan to provide low-income nations with funds to procure SARS-CoV-2 vaccines, according to Reuters.

Science writes that public health officials and others are debating whether cycle threshold values should be included on SARS-CoV-2 results.

In Nucleic Acids Research this week: online database of SARS-CoV-2 protein structures, atlas of the human brain, and more.