Evidence map›Paper›PMID 12650520›Full record

ArticleTransgenic research2003

Elevation of transgene expression level by flanking matrix attachment regions (MAR) is promoter dependent: a study of the interactions of six promoters with the RB7 3' MAR.

S Luke Mankin, George C Allen, Thomas Phelan, Steven Spiker, William F Thompson

Abstract readComparative Study
PubMed Publisher
In one paragraph

Article in Transgenic research, 2003. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
3.7field-weighted citation impact, top 8% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

16 citing papers in PubMed, 39 citations in OpenAlex.

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  9. Design of gene constructs for transgenic maize.Methods in molecular biology (Clifton, N.J.) · 2009
    Review
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors at 2 institutions in 1 country.

S Luke MankinDepartment of Botany, NC State University, Raleigh, NC 27695-7612, USA. mankins@basf.com
George C Allen
Thomas Phelan
Steven Spiker
William F Thompson
North Central State College · USNorth Carolina State University · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

We have analyzed effects of a matrix attachment region (MAR) from the tobacco RB7 gene on transgene expression from six different promoters in stably transformed tobacco cell cultures. The presence of MARs flanking the transgene increased expression of constructs based on the constitutive CaMV 35S, NOS, and OCS promoters. Expression from an induced heat shock promoter was also increased and MARs did not cause expression in the absence of heat shock. There was also no effect of MARs on the pea ferredoxin promoter, which is not normally expressed in this cell line. Importantly, most transgenes flanked by RB7 MAR elements showed a large reduction in the number of low expressing GUS transformants relative to control constructs without MARs.

Indexed as

3' Untranslated RegionsDNA PrimersGene Expression Regulation, PlantGenes, PlantGlucuronidaseHot TemperatureNicotianaNuclear MatrixPlant LeavesPlants, Genetically ModifiedPolymerase Chain ReactionPromoter Regions, GeneticTransformation, GeneticTransgenesUp-Regulation3' Untranslated RegionsDNA PrimersGlucuronidaseNon-programmatic

Identifiers

PMID12650520
OpenAlexW2168680115

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.