title: Interaction of multiple nuclear proteins with the promoter region of the mouse 68-kDa neurofilament gene.
abstract: Four brain-specific, DNase I hypersensitive sites (HSS) have been mapped to the 5' flanking region of the mouse 68-kDa neurofilament gene. These sites are contained within a 1.7-kb sequence that confers neuronal specificity of expression of this gene in transgenic mice. To identify DNA sequences that might be involved in gene regulation, the HSS situated near the promoter region has been analyzed by gel mobility shift assays and DNase I footprinting to investigate protein binding sequences. Of particular interest are two footprints localized to a 9-nucleotide sequence that flanks both the light and medium neurofilament gene in mouse and to a sequence that demonstrates partial homology to several promoter regions, including element-1, a motif required for neuron specificity in Drosophila. A prominent footprint was also detected at a sequence that contains a near-perfect palindrome centered at a PstI restriction site.
authors.affiliation: Department of Zoology, University of Toronto, West Hill, Ontario, Canada.
authors.forename: T R
authors.initials: TR
authors.lastname: Ivanov
authors.forename: I R
authors.initials: IR
authors.lastname: Brown
mesh_terms: D000818:Animals; D001483:Base Sequence; D001923:Brain Chemistry / Q000502:physiology; D003850:Deoxyribonuclease I / Q000378:metabolism; D005786:Gene Expression Regulation; D008099:Liver / Q000378:metabolism; D051379:Mice; D008969:Molecular Sequence Data; D009419:Nerve Tissue Proteins / Q000378:metabolism*; D016900:Neurofilament Proteins / Q000235:genetics / Q000378:metabolism*; D009687:Nuclear Proteins / Q000378:metabolism*; D010449:Peptide Mapping; D011401:Promoter Regions, Genetic; D014158:Transcription, Genetic
chemical_list: D009419:Nerve Tissue Proteins; D016900:Neurofilament Proteins; D009687:Nuclear Proteins; C066858:neurofilament protein NF 68; D003850:Deoxyribonuclease I