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To (TGF)beta or not to (TGF)beta: fine-tuning of Smad signaling via post-translational modifications Wrighton KH; Feng XHCell Signal 2008[Sep]; 20 (9): 1579-91Smad proteins are key signal transducers for the TGF-beta superfamily and are frequently inactivated in human cancers, yet the molecular basis of how their levels and activities are regulated remains unclear. Recent progress, discussed herein, illustrates the critical roles of Smad post-translational modifications in the cellular outcome to TGF-beta signaling.|*Protein Processing, Post-Translational[MESH]|*Signal Transduction[MESH]|Amino Acid Motifs[MESH]|Animals[MESH]|Humans[MESH]|Neoplasms/metabolism[MESH]|Smad Proteins/chemistry/*metabolism[MESH]|Transforming Growth Factor beta/*metabolism[MESH] |
