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Creators/Authors contains: "Labrie, Gregory"

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  1. ; ; (, Current Opinion in Structural Biology)
    Not AvailableOur previously proposed Ras dimerization model is consistent with recent details observed by NMR in that Raf activation is centered on the Ras/Raf dimer, distinct from one in which Ras activates Raf as a monomer with the Raf cysteine rich domain inserted in the membrane. We review mechanistic understanding of Raf activation within nanoclusters of Ras on the membrane, with a shift to dimers upon binding Raf. This sets the stage for a signaling platform composed of Ras/Raf and Galectin dimers that facilitates the release of Raf autoinhibition and folding of the Raf intrinsically disordered region between the Ras-binding domains and the kinase bound to 14-3-3 and MEK. This platform could provide synchronized units for signal amplification and is consistent with a Ras stationary phase observed in cells. 
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    Free, publicly-accessible full text available December 1, 2026