This Week in PNAS

In PNAS this week, Steven Gygi at Harvard led work that used stable-isotope dilution and high-resolution mass spec to measure kinase activity. His multiplexed assay was able to measure up to 90 site-specific peptide phosphorylation rates at the same time, and he could apply it to a variety of cells and cellular processes, including mitogen stimulation, cell cycle, pharmacological inhibition of pathways, and to a panel of breast cancer cell lines.

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A research duo estimates in PLOS One the number of papers that have used misidentified cell lines.

UK's National Institute for Health and Care Excellence approves GlaxoSmithKline's SCID gene therapy despite cost.

Science reports that Brazilian researchers are petitioning for the reversal of budget cuts.

In PLOS this week: gene flow patterns in common ash, guidelines for using morpholinos in zebrafish, and more.