PMID: 9630486Jun 19, 1998Paper

Characterization of the mouse neurofilament light (NF-L) gene promoter by in vitro transcription

Brain Research. Molecular Brain Research
M L SchwartzW W Schlaepfer

Abstract

We have used in vitro transcription to access the basic sequences and factors required for the transcription of the mouse neurofilament light promoter (pNF-L) in the absence of chromatin structure. Deletion from -1.7 to -154 results in little change in NF-L promoter activity using nuclear extracts from either brain (expressing) or liver (non-expressing) tissues. Further deletion to -29 results in a gradual five-fold drop in promoter activity in both extracts. Only replacement of the entire -148 to -29 region results in a drop in NF-L promoter activity to basal levels. Thus, the NF-L promoter differs from the mouse NF heavy (NF-H) and mid-sized (NF-M) promoters in that no specific sequence within the immediate upstream NF-L promoter region (-154 to -29) appears to be responsible for enhancement or brain-specific transcription. We show that the order of strength of the three NF promoters is NF-H>NF-M>NF-L and identify sequences that can increase or reduce transcription when placed in front of heterologous NF promoters. We conclude that the NF-L promoter is a modular, weak and promiscuous promoter whose regulation differs from NF-H or NF-M. Our data suggest that chromatin structure may play an important role in the regulation of t...Continue Reading

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Citations

Jan 3, 2001·BioEssays : News and Reviews in Molecular, Cellular and Developmental Biology·C Perrone CapanoU di Porzio
Apr 6, 2011·Brain Structure & Function·Melissa PaulussenLutgarde Arckens
Sep 21, 2005·Journal of Cellular Biochemistry·Pei WangChung-Liang Chien

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