发明名称 |
Process for producing a neuronal host cell in vitro comprising regulatory sequences of the beta2-subunit of the neuronal nicotinic acetylcholine receptor |
摘要 |
Several genes encoding subunits of the neuronal nicotinic acetylcholine receptors have been cloned and regulatory elements involved in the transcription of the alpha:2 and alpha:7-subunit genes have been described. Yet, the detailed mechanisms governing the neuron-specific transcription and the spatio-temporal expression pattern of these genes remain largely uninvestigated. The beta2-subunit is the most widely expressed neuronal nicotinic receptors subunit in the nervous system. We have studied the structural and regulatory properties of the 5' sequence of this gene. A fragment of 1163 bp of upstream sequence is sufficient to drive the cell-specific transcription of a reporter gene in both transient transfection assays and in transgenic mice. Deletion analysis and sit-directed mutagenesis of this promoter reveal two negative and one positive element. The positively acting sequence includes one functional E-box. One of the repressor elements is located in the transcribed region and is the NRSE/RE1 sequence already described in promoters of neuronal genes.
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申请公布号 |
US6777236(B1) |
申请公布日期 |
2004.08.17 |
申请号 |
US19990349925 |
申请日期 |
1999.07.08 |
申请人 |
INSTITUT PASTEUR |
发明人 |
CHANGEUX JEAN-PIERRE;PICCIOTTO MARINA;BESSIS ALAIN |
分类号 |
A01K67/027;C07K14/705;C12N5/02;C12N15/85;(IPC1-7):C12N15/63;C12N15/87;C12N5/00 |
主分类号 |
A01K67/027 |
代理机构 |
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主权项 |
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地址 |
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