Linked Life Data

10721714

Source:http://linkedlifedata.com/resource/pubmed/id/10721714

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1-2
pubmed:dateCreated
2000-4-3
pubmed:databankReference
pubmed:abstractText
Transcription factors of the basic Helix-Loop-Helix (bHLH) protein family play key roles in several developmental processes. Mist1 belongs to this group of proteins and shares several properties with the other family members. For example, Mist1 is capable of dimerization with the ubiquitously expressed E2A bHLH proteins and exhibits a strong DNA-binding activity to the core E-box sequence. Using in-situ hybridization and Northern blot hybridization, Mist1 mRNA has been detected in a variety of embryonic and adult rodent tissues. To understand the molecular mechanisms involved in the expression of the gene, we have cloned the rat Mist1 gene and analyzed 2.5 kb of its 5' flanking region. The Mist1 gene spans over 5 kilobases and is composed of two exons separated by a unique intron. The entire coding region is localized in the second exon. Sequence analysis of the promoter region indicated an absence of TATA-box or CAAT-box sequence, but several consensus Sp1-binding sites were present near the transcription start site. Deletion analysis of the promoter region identified a 272 bp proximal fragment to be sufficient to drive expression of a reporter gene in NIH3T3 fibroblasts. Subsequent deletion of potential Sp1 sites results in a marked decrease in promoter activity. Electrophoretic mobility shift assays revealed that Sp1 binds to two different regions in the proximal promoter, a typical Sp1 site located at (-38; -33) and a G/C-rich region between (-67; -62). These data suggest that the basal expression of this TATA-less gene might be driven by general transcription factors, such as Sp1.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jan
pubmed:issn
0378-1119
pubmed:author
pubmed:issnType
Print
pubmed:day
25
pubmed:volume
242
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
209-18
pubmed:dateRevised
2008-11-21
pubmed:meshHeading
pubmed-meshheading:10721714-3T3 Cells, pubmed-meshheading:10721714-Animals, pubmed-meshheading:10721714-Base Sequence, pubmed-meshheading:10721714-Basic Helix-Loop-Helix Transcription Factors, pubmed-meshheading:10721714-Binding Sites, pubmed-meshheading:10721714-Cell Line, pubmed-meshheading:10721714-Cloning, Molecular, pubmed-meshheading:10721714-DNA, pubmed-meshheading:10721714-Genes, pubmed-meshheading:10721714-Luciferases, pubmed-meshheading:10721714-Mice, pubmed-meshheading:10721714-Molecular Sequence Data, pubmed-meshheading:10721714-Promoter Regions, Genetic, pubmed-meshheading:10721714-Protein Binding, pubmed-meshheading:10721714-Rats, pubmed-meshheading:10721714-Recombinant Fusion Proteins, pubmed-meshheading:10721714-Regulatory Sequences, Nucleic Acid, pubmed-meshheading:10721714-Sequence Analysis, DNA, pubmed-meshheading:10721714-Sequence Deletion, pubmed-meshheading:10721714-Sp1 Transcription Factor, pubmed-meshheading:10721714-Transcription Factors
pubmed:year
2000
pubmed:articleTitle
The rat Mist1 gene: structure and promoter characterization.
pubmed:affiliation
Laboratoire de Greffe de Moelle, UMR5540, Université de Bordeaux 2, France. claudie.lemercier@ujf-grenoble.fr
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't