Evidence map›Paper›PMID 12505988›Full record

ArticleThe EMBO journal2003

Knockout of 'metal-responsive transcription factor' MTF-1 in Drosophila by homologous recombination reveals its central role in heavy metal homeostasis.

Dieter Egli, Anand Selvaraj, Hasmik Yepiskoposyan, Bo Zhang, Ernst Hafen, Oleg Georgiev, Walter Schaffner

Open access · bronzeAbstract read
In one paragraph

Article in The EMBO journal, 2003. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 51 papers.

0numbers the graph read from it
0cells of the map it votes in
51citing papers in PubMed
5.9field-weighted citation impact, top 3% 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

51 citing papers in PubMed, 141 citations in OpenAlex.

  1. Balancing cellular copper levels via the post-translational regulation of copper transport.Biometals : an international journal on the role of metal ions in biology, biochemistry, and medicine · 2026
    Review
  2. Article
  3. Review
  4. Article
  5. Article
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  7. Article
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  10. Mitochondrial CytochromeFrontiers in cell and developmental biology · 2022
    Article
  11. Article
  12. Review
  13. Article
  14. The evolution of insect metallothioneins.Proceedings. Biological sciences · 2020
    Article
  15. Article
  16. Biogenesis of zinc storage granules inThe Journal of experimental biology · 2018
    Article
  17. Article
  18. Review
  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

7 authors at 1 institution in 1 country.

Dieter EgliInstitut für Molekularbiologie and Zoologisches Institut der Universität Zürich, Winterthurerstrasse 190, CH-8057 Zürich, Switzerland.
Anand Selvaraj
Hasmik Yepiskoposyan
Bo Zhang
Ernst Hafen
Oleg Georgiev
Walter Schaffner
University of Zurich · CH

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

'Metal-responsive transcription factor-1' (MTF-1), a zinc finger protein, is conserved from mammals to insects. In the mouse, it activates metallothionein genes and other target genes in response to several cell stress conditions, notably heavy metal load. The knockout of MTF-1 in the mouse has an embryonic lethal phenotype accompanied by liver degeneration. Here we describe the targeted disruption of the MTF-1 gene in Drosophila by homologous recombination. Unlike the situation in the mouse, knockout of MTF-1 in Drosophila is not lethal. Flies survive well under laboratory conditions but are sensitive to elevated concentrations of copper, cadmium and zinc. Basal and metal-induced expression of Drosophila metallothionein genes MtnA (Mtn) and MtnB (Mto), and of two new metallothionein genes described here, MtnC and MtnD, is abolished in MTF-1 mutants. Unexpectedly, MTF-1 mutant larvae are sensitive not only to copper load but also to copper depletion. In MTF-1 mutants, copper depletion prevents metamorphosis and dramatically extends larval development/lifespan from normally 4-5 days to as many as 32 days, possibly reflecting the effects of impaired oxygen metabolism. These findings expand the roles of MTF-1 in the control of heavy metal homeostasis.

Indexed as

Recombination, GeneticAmino Acid SequenceAnimalsBase SequenceDNA-Binding ProteinsDNA PrimersDrosophila melanogasterGene DeletionHomeostasisMetals, HeavyMiceMice, KnockoutMolecular Sequence DataPolymerase Chain ReactionTranscription Factor MTF-1Transcription FactorsDNA-Binding ProteinsDNA PrimersMetals, HeavyTranscription Factor MTF-1Transcription Factors

Identifiers

PMID12505988
PMCPMC140060
OpenAlexW2063730247

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.