Evidence map›Paper›PMID 7777514›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America1995

Position-dependent variegation of globin transgene expression in mice.

G Robertson, D Garrick, W Wu, M Kearns, D Martin, E Whitelaw

Open access · greenAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 1995. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 60 papers.

0numbers the graph read from it
0cells of the map it votes in
60citing papers in PubMed
8.8field-weighted citation impact, top 2% 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

60 citing papers in PubMed, 159 citations in OpenAlex.

  1. Professor Emma Whitelaw, a pioneer of epigenetic inheritance.Frontiers in epigenetics and epigenomics · 2025
    Article
  2. Article
  3. Gene Therapy for Cystic Fibrosis: Progress and Challenges of Genome Editing.International journal of molecular sciences · 2020
    Review
  4. Article
  5. Review
  6. Article
  7. Review
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. The use of mouse models to study epigenetics.Cold Spring Harbor perspectives in biology · 2013
    Review
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. DNA methylation in zebrafish.Progress in molecular biology and translational science · 2011
    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

6 authors at 1 institution in 1 country.

G RobertsonDepartment of Biochemistry, University of Sydney, New South Wales, Australia.
D Garrick
W Wu
M Kearns
D Martin
E Whitelaw
University of Sydney · AU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Expression of genes in eukaryotes has commonly been analyzed in a whole tissue, and levels of expression have been interpreted as the result of equivalent rates of transcription in every cell. We have produced transgenic mouse lines that express beta-galactosidase under the control of globin promoters linked to the major tissue-specific regulatory element of the alpha-globin locus, which permits the analysis of transgene expression in individual red blood cells. We find that expression of the transgene within all mouse lines is heterocellular. Individual cells either do not express the transgene at all or express it at a level characteristic of that line. The number of beta-galactosidase-expressing cells varies greatly between different lines of transgenic mice at any defined stage of development, but within a transgenic line, individual mice have strikingly similar numbers of expressing cells. This suggests that the degree of heterocellular expression is determined by the site of integration, as is seen in position-effect variegation.

Indexed as

Gene ExpressionAnimalsbeta-GalactosidaseFemaleGlobinsLac OperonMaleMiceMice, TransgenicPromoter Regions, Geneticbeta-GalactosidaseGlobins

Identifiers

PMID7777514
PMCPMC41696
OpenAlexW2049226568

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.