Transcriptional Regulation of Neuronal Nicotinic Acetylcholine Receptor Genes

Transcriptional Regulation of Neuronal Nicotinic Acetylcholine Receptor Genes
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神经元烟碱乙酰胆碱受体基因的转录调控

DOI:
--
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发表时间:
1996
影响因子:
4.8
通讯作者:
P. Gardner
P. Gardner
中科院分区:
生物学2区
文献类型:
--
作者:
Catherine B. Bigger;E. A. Casanova;P. Gardner

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迄今为止,已鉴定出神经元烟碱乙酰胆碱受体基因家族的11个成员(α2-α9和β2-β4)。这些基因编码的亚基在神经系统中形成不同的受体,具有不同的药理和生理特征,在时间和空间上受到限制。不同的分子机制可能协调了各种受体亚型的表达,但对负责这种分离表达模式的特定转录调控元件及其相关因子知之甚少。在此,我们报道了在大鼠β4亚基基因的5 '侧区鉴定了一个元件,该元件包含一个CA盒,这是瞬时转染的胆碱能细胞系SN17中β4启动子活性所必需的。该元件被证明与SN17核提取物中的一个蛋白相互作用,该蛋白与转录激活子Sp1具有抗原性相关。此外,共转染实验证实Sp1可以反激活β4启动子报告基因结构,这表明Sp1至少在一定程度上是β4亚基基因转录激活所必需的。
To date, 11 members (α2-α9 and β2-β4) of the neuronal nicotinic acetylcholine receptor gene family have been identified. These genes encode subunits that form distinct receptors with different pharmacological and physiological profiles in temporally and spatially restricted patterns within the nervous system. Distinct molecular mechanisms probably orchestrate the expression of various receptor subtypes, yet little is known of specific transcriptional regulatory elements and their associated factors that are responsible for this segregated pattern of expression. Here we report the identification of an element, in the 5′-flanking region of the rat β4 subunit gene, containing a CA box that is necessary for β4 promoter activity in a transiently transfected cholinergic cell line, SN17. This element was shown to interact with a protein(s) in SN17 nuclear extracts that is antigenically related to the transcriptional activator Sp1. Furthermore, co-transfection experiments confirmed that Sp1 can transactivate a β4 promoter-reporter gene construct, indicating that Sp1 is necessary, at least in part, for transcriptional activation of the β4 subunit gene.
无 TATAA 的小鼠胸苷酸合酶启动子中的多种蛋白质-DNA 相互作用。
DOI: 10.1093/nar/19.9.2267
发表时间: 1991
影响因子: 14.9
作者:
Jolliff,K;Li,Y;Johnson,LF
通讯作者: Johnson,LF
DOI: 10.1073/pnas.84.21.7763
发表时间: 1987-11-01
影响因子: 11.1
作者:
BOULTER, J;CONNOLLY, J;PATRICK, J
通讯作者: PATRICK, J
DOI: 10.1126/science.7569895
发表时间: 1995-09-22
期刊: SCIENCE
影响因子: 56.9
作者:
MCGEHEE, DS;HEATH, MJS;ROLE, LW
通讯作者: ROLE, LW
DOI: --
发表时间: 1988-05
期刊: BioTechniques
影响因子: 2.7
作者:
S. Nordeen
通讯作者: S. Nordeen
DOI: 10.1016/s0021-9258(18)83343-9
发表时间: 1989-04
期刊: The Journal of biological chemistry
影响因子: --
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E. Deneris;J. Boulter;L. Swanson;J. Patrick;S. Heinemann
通讯作者: E. Deneris;J. Boulter;L. Swanson;J. Patrick;S. Heinemann