Evidence map›Paper›PMID 9032288›Full record

ArticleMolecular and cellular biology1997

A globin enhancer acts by increasing the proportion of erythrocytes expressing a linked transgene.

H G Sutherland, D I Martin, E Whitelaw

Open access · bronzeAbstract read
In one paragraph

Article in Molecular and cellular biology, 1997. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed
3.8field-weighted citation impact, top 6% 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

24 citing papers in PubMed, 75 citations in OpenAlex.

  1. Article
  2. Chromatin remodeling effects on enhancer activity.Cellular and molecular life sciences : CMLS · 2016
    Review
  3. The use of mouse models to study epigenetics.Cold Spring Harbor perspectives in biology · 2013
    Review
  4. Remission of diabetes by insulin gene therapy using a hepatocyte-specific and glucose-responsive synthetic promoter.Molecular therapy : the journal of the American Society of Gene Therapy · 2011
    Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Review
  11. Article
  12. Chromatin insulation by a transcriptional activator.Proceedings of the National Academy of Sciences of the United States of America · 2003
    Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Gene therapy for the hemoglobin disorders: past, present, and future.Proceedings of the National Academy of Sciences of the United States of America · 2000
    Review
  18. Article
  19. Article
  20. Article
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

3 authors at 2 institutions in 2 countries.

H G SutherlandDepartment of Biochemistry, The University of Sydney, New South Wales, Australia.
D I Martin
E Whitelaw
The University of Sydney · AUUniversity of Washington · US

Funding

GLOBIN GENE REGULATION BY RC TRANSCRIPTION FACTOR GATA-1R01HL048790 · NHLBI · FRED HUTCHINSON CANCER RESEARCH CENTER · PI GROUDINE, MARK T · 1992 to 1999
–
NHLBI NIH HHS 5R01HL48790
6 · The paper itself

Abstract

Enhancer elements have been shown to affect the probability of a gene establishing an active transcriptional state and suppress the silencing of reporter genes in cell lines, but their effect in transgenic mice has been obscured by the use of assays that do not assess expression on a cell-by-cell basis. We have examined the effect of a globin enhancer on the variegation of lacZ expression in erythrocytes of transgenic mice. Mice carrying lacZ driven by the alpha-globin promoter exhibit beta-galactosidase (beta-Gal) expression in only a very small proportion of embryonic erythrocytes. When the transgenic construct also contains the (alphaHS-40 enhancer, which controls expression of the alpha-globin gene, expression is seen in a high proportion of embryonic erythrocytes, although there are variations between transgenic lines which can be attributed to different sites of integration. Analysis of beta-Gal expression levels suggests that expressing cells in lines carrying only the alpha-globin promoter express as much beta-Gal as those in which the transgene also contains alphaHS-40. A marked decline in transgene expression occurs as mice age, which is mainly due to a decrease in the proportion of cells expressing the transgene. Thus, a globin enhancer can act to suppress variegation of a linked transgene; this result is consistent with a model in which enhancers act to establish and maintain an active domain without directly affecting the transcriptional rate.

Indexed as

Age FactorsAnimalsbeta-GalactosidaseDNA MethylationEmbryo, MammalianEnhancer Elements, GeneticErythrocytesGene Expression Regulation, DevelopmentalGlobinsHumansLac OperonMiceMice, TransgenicPromoter Regions, GeneticTransgenesbeta-GalactosidaseGlobins

Identifiers

PMID9032288
PMCPMC231886
OpenAlexW2145144091

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.