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In panels of cancer cell lines analysed for their response to drug libraries, some studies have proposed distinct pharmacological sensitivities for some cell lines while other studies have not seen the same trends; here the data in the Cancer Cell Line Encyclopedia and the Genomics of Drug Sensitivity in Cancer are reassessed, and the authors report a stronger degree of concordance between the two data sets than that in a previous study.
There are ∼800 human GPCRs and 16 different Gα proteins; this study revealed the molecular details of Gα activation by GPCRs and suggests that a universal activation mechanism governs Gα activation—the details of this mechanism can explain how the GPCR–Gα system diversified rapidly, while conserving the allosteric activation mechanism.
