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REST-VP16 activates multiple neuronal differentiation genes in human NT2 cells 总被引:4,自引:0,他引:4
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Immaneni A Lawinger P Zhao Z Lu W Rastelli L Morris JH Majumder S 《Nucleic acids research》2000,28(17):3403-3410
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Studies describing the structures of the M1, M2 and M4 muscarinic acetylcholine receptors (mAChR) genes and the genetic elements that control their expression are reviewed. In particular, we focus on the role of the neuron-restrictive silencer element/restriction element-1 (NRSE/RE-1) in the regulation of the M4 mAChR gene. The NRSE/RE-1 was first identified as a genetic control element that prevents the expression of the SCG-10 and type II sodium channel (NaII) genes in non-neuronal cells in culture. The NRSE/RE-1 inhibits gene expression by binding the repressor/silencer protein NRSF/REST, which is present in many non-neuronal cell lines and tissues. Our studies show that although the expression of the M4 mAChR gene is inhibited by NRSF/REST, this inhibition is not always complete. Rather, the efficiency of silencing by NRSF/REST is different in different cells. A plausible explanation for this differential silencing is that the NRSF/RE-1 interacts with distinct sets of promoter binding proteins in different types of cells. We hypothesize that modulation of NRSF/REST silencing activity by these proteins contributes to the cell-specific pattern of expression of the M4 mAChR in neuronal and non-neuronal cells. Recent studies that suggest a more complex role for the NRSE/RE-1 in regulating gene expression are also discussed. 相似文献
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The RE1 binding silencer protein REST represses neuronal-specific gene expression in nonneuronal cell types. In this issue of Neuron, Ballas et al. show that REST inhibits gene expression via the recruitment of multiple histone deacetylase complexes. 相似文献