Structural requirements for the interaction of p21ras with GAP, exchange factors, and its biological effector target.

Abstract excerpt

From the multitude of mutations that have been tested in p21ras, a common theme emerges regarding its interaction with the effector target, GAPs, and the newly discovered exchange factors. Many of the mutations that result in dysfunction for all three types of interactions are localized to the switch 1 and switch 2 regions of the p21ras three-dimensional structure (Fig. 2). These two regions change conformation...

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