Identifying the Ubiquitin Ligase Complex That Regulates the NF1 Tumor Suppressor and Ras

Abstract excerpt

Abstract The NF1 tumor suppressor protein neurofibromin is a negative regulator of Ras. Neurofibromin is dynamically regulated by the proteasome, and its degradation and reexpression are essential for maintaining appropriate levels of Ras-GTP. Like p53, NF1/neurofibromin can be inactivated in cancer by both mutations and excessive proteasomal destruction; however, little is known about the mechanisms that...

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