Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
27
pubmed:dateCreated
1993-10-20
pubmed:databankReference
pubmed:abstractText
The organization, sequence, and transcriptional regulation of expression of the murine S100 beta gene are reported. The gene is approximately 9 kilobase pairs in length and is composed of three exons and two introns. The deduced murine S100 beta protein sequence differs from the human S100 beta protein by only 1 amino acid. The murine S100 beta gene contains a TATA box (AATAA) and a reverse CCAAT box (ATTGG) located at 30 nucleotides and 92 nucleotides upstream of the cap site, respectively. A 149-base pair DNA fragment (-157/-9) spanning the TATA box and the reverse CCAAT box functions as a promoter. The murine S100 beta promoter drives a 4-fold higher level of transcription in glial (C6) than in non-glial (3T3) cells, suggesting the existence of a potential cell type-specific regulatory element within the promoter region. The 5'-flanking region suppresses transcription from the homologous S100 beta as well as the heterologous SV40 promoters in an orientation-independent fashion. However, the 5'-flanking region exhibits cell type specificity when suppressing the S100 beta promoter-dependent transcription, indicating its involvement in the cell type-specific expression of S100 beta gene. In order to map cell type-specific regulatory elements, transcription analyses of various deletions of the 5'-region were carried out in C6 and 3T3 cells. Two cell type-specific negative regulatory elements, one active in non-glial cells and another active in glial cells, were mapped to the regions -1552/-1234 and -1234/-551, respectively. A strong negative regulatory element and a relatively weak negative element were located in the regions -551/-157 and -1669/-1552, respectively. The murine S100 beta gene is under complex transcriptional regulation involving tonic negative control exerted by combination of multiple cis-acting regulatory elements including cell type-specific elements.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Sep
pubmed:issn
0021-9258
pubmed:author
pubmed:issnType
Print
pubmed:day
25
pubmed:volume
268
pubmed:geneSymbol
S100&bgr;
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
20502-11
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed-meshheading:8376406-Amino Acid Sequence, pubmed-meshheading:8376406-Animals, pubmed-meshheading:8376406-Base Sequence, pubmed-meshheading:8376406-Calcium-Binding Proteins, pubmed-meshheading:8376406-Cattle, pubmed-meshheading:8376406-Chloramphenicol O-Acetyltransferase, pubmed-meshheading:8376406-Cloning, Molecular, pubmed-meshheading:8376406-Gene Expression, pubmed-meshheading:8376406-Gene Expression Regulation, pubmed-meshheading:8376406-Genomic Library, pubmed-meshheading:8376406-Humans, pubmed-meshheading:8376406-Mice, pubmed-meshheading:8376406-Mice, Inbred BALB C, pubmed-meshheading:8376406-Molecular Sequence Data, pubmed-meshheading:8376406-Nerve Growth Factors, pubmed-meshheading:8376406-Oligodeoxyribonucleotides, pubmed-meshheading:8376406-Rats, pubmed-meshheading:8376406-Recombinant Fusion Proteins, pubmed-meshheading:8376406-Regulatory Sequences, Nucleic Acid, pubmed-meshheading:8376406-Restriction Mapping, pubmed-meshheading:8376406-S100 Proteins, pubmed-meshheading:8376406-Sequence Homology, Amino Acid, pubmed-meshheading:8376406-Swine, pubmed-meshheading:8376406-Transcription, Genetic
pubmed:year
1993
pubmed:articleTitle
Organization, sequence, and expression of the murine S100 beta gene. Transcriptional regulation by cell type-specific cis-acting regulatory elements.
pubmed:affiliation
Department of Neurology, University of Maryland School of Medicine, Baltimore.
pubmed:publicationType
Journal Article, Comparative Study, Research Support, U.S. Gov't, P.H.S., Research Support, U.S. Gov't, Non-P.H.S., Research Support, Non-U.S. Gov't