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Atrophin proteins: an overview of a new class of nuclear receptor corepressors Wang L; Tsai CCNucl Recept Signal 2008[]; 6 (ä): e009The normal development and physiological functions of multicellular organisms are regulated by complex gene transcriptional networks that include myriad transcription factors, their associating coregulators, and multiple chromatin-modifying factors. Aberrant gene transcriptional regulation resulting from mutations among these elements often leads to developmental defects and diseases. This review article concentrates on the Atrophin family proteins, including vertebrate Atrophin-1 (ATN1), vertebrate arginine-glutamic acid dipeptide repeats protein (RERE), and Drosophila Atrophin (Atro), which we recently identified as nuclear receptor corepressors. Disruption of Atrophin-mediated pathways causes multiple developmental defects in mouse, zebrafish, and Drosophila, while an aberrant form of ATN1 and altered expression levels of RERE are associated with neurodegenerative disease and cancer in humans, respectively. We here provide an overview of current knowledge about these Atrophin proteins. We hope that this information on Atrophin proteins may help stimulate fresh ideas about how this newly identified class of nuclear receptor corepressors aids specific nuclear receptors and other transcriptional factors in regulating gene transcription, manifesting physiological effects, and causing diseases.|Animals[MESH]|Carrier Proteins/*metabolism[MESH]|Drosophila[MESH]|Drosophila Proteins/*metabolism[MESH]|Gene Expression Regulation/*physiology[MESH]|Humans[MESH]|Nerve Tissue Proteins/*metabolism[MESH]|Receptors, Cytoplasmic and Nuclear/*metabolism[MESH]|Repressor Proteins/*classification/*metabolism[MESH]|Transcription Factors/*metabolism[MESH] |
