Switch to
Predicate | Object |
---|---|
rdf:type | |
lifeskim:mentions | |
pubmed:issue |
1-2
|
pubmed:dateCreated |
1992-1-3
|
pubmed:abstractText |
A 16 base-pair palindrome upstream of the Agrobacterium tumefaciens octopine synthase (ocs) gene functions as a positive regulatory element in plant cells (Ellis et al. (1987) EMBO J. 6, 3203-3208; Fromm et al. (1989) Plant Cell 1, 977-984). We have converted it into a negative element by locating two copies flanking the TATA-box of the constitutively expressed CaMV 35S promoter. The reduced promoter activity is very likely due to sterical hindrance of the ocs binding protein (OCSTF) x ocs complex with the transcription initiation complex. We propose that this type of constructs can be used for the identification of recognition sites for DNA-binding proteins which are labile in vitro as well as for determining the DNA-binding activity of a trans-acting factor in vivo.
|
pubmed:language |
eng
|
pubmed:journal | |
pubmed:citationSubset |
IM
|
pubmed:chemical | |
pubmed:status |
MEDLINE
|
pubmed:month |
Nov
|
pubmed:issn |
0014-5793
|
pubmed:author | |
pubmed:issnType |
Print
|
pubmed:day |
18
|
pubmed:volume |
293
|
pubmed:geneSymbol |
ocs
|
pubmed:owner |
NLM
|
pubmed:authorsComplete |
Y
|
pubmed:pagination |
175-8
|
pubmed:dateRevised |
2008-11-21
|
pubmed:meshHeading |
pubmed-meshheading:1959656-Amino Acid Oxidoreductases,
pubmed-meshheading:1959656-Base Sequence,
pubmed-meshheading:1959656-DNA-Binding Proteins,
pubmed-meshheading:1959656-Enhancer Elements, Genetic,
pubmed-meshheading:1959656-Molecular Sequence Data,
pubmed-meshheading:1959656-Promoter Regions, Genetic,
pubmed-meshheading:1959656-TATA Box,
pubmed-meshheading:1959656-Transcription, Genetic,
pubmed-meshheading:1959656-Transcriptional Activation
|
pubmed:year |
1991
|
pubmed:articleTitle |
Repression of the CaMV 35S promoter by the octopine synthase enhancer element.
|
pubmed:affiliation |
Institut für Genbiologische Forschung Berlin GmbH, Germany.
|
pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
|