The US National Cancer Institute has launched a project to figure out how to block the Ras protein, ScienceInsider reports. Mutated Ras is present in about a third of all cancers and Ras has long been thought to be undruggable as it does not have an obvious binding site. "Researchers have begun to find some weak spots in RAS, however, and NCI now thinks it is time for a coordinated attack on this protein," ScienceInsider notes.

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