Evidence map›Paper›PMID 8276898›Full record

ArticleThe Journal of cell biology1993

Cell shape and interaction defects in alpha-spectrin mutants of Drosophila melanogaster.

J K Lee, R S Coyne, R R Dubreuil, L S Goldstein, D Branton

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of cell biology, 1993. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 59 papers.

0numbers the graph read from it
0cells of the map it votes in
59citing papers in PubMed
5.3field-weighted citation impact, top 4% 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

59 citing papers in PubMed, 145 citations in OpenAlex.

  1. Review
  2. Article
  3. Review
  4. Article
  5. Review
  6. The Role of Nonerythroid SpectrinJournal of oncology · 2019
    Review
  7. Article
  8. Review
  9. Article
  10. Spectrin and its interacting partners in nuclear structure and function.Experimental biology and medicine (Maywood, N.J.) · 2018
    Review
  11. Article
  12. Review
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
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  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

5 authors at 1 institution in 1 country.

J K LeeDepartment of Cellular and Developmental Biology, Harvard University, Cambridge, Massachusetts 02138.
R S Coyne
R R Dubreuil
L S Goldstein
D Branton
Harvard University · US

Funding

GENETIC STUDIES OF NON-ERYTHROID SPECTRINR01GM039686 · NIGMS · HARVARD UNIVERSITY · PI BRANTON, DANIEL · 1988 to 1996
–
NIGMS NIH HHS GM 39686
6 · The paper itself

Abstract

We show that the alpha-spectrin gene is essential for larval survival and development by characterizing several alpha-spectrin mutations in Drosophila. P-element minigene rescue and sequence analysis were used to identify the alpha-spectrin gene as the l(3)dre3 complementation group of the Dras-Roughened-ecdysoneless region of chromosome 3 (Sliter et al., 1988). Germ line transformants carrying an alpha-spectrin cDNA, whose expression is driven by the ubiquitin promoter, fully rescued the first to second instar lethality characteristic of the l(3)dre3 alleles. The molecular defects in two gamma-ray-induced alleles were identified. One of these mutations, which resulted in second instar lethality, contained a 73-bp deletion in alpha-spectrin segment 22 (starting at amino acid residue 2312), producing a premature stop codon between the two EF hands found in this segment. The second mutation, which resulted in first instar lethality, contained a 20 base pair deletion in the middle of segment 1 (at amino acid residue 92), resulting in a premature stop codon. Examination of the spectrin-deficient larvae revealed a loss of contact between epithelial cells of the gut and disruption of cell-substratum interactions. The most pronounced morphological change was seen in tissues of complex cellular architecture such as the middle midgut where a loss of cell contact between cup-shaped cuprophilic cells and neighboring interstitial cells was accompanied by disorganization of the cuprophilic cell brush borders. Our examination of spectrin deficient larvae suggests that an important role of non-erythroid spectrin is to stabilize cell to cell interactions that are critical for the maintenance of cell shape and subcellular organization within tissues.

Indexed as

MutationAllelesAmino Acid SequenceAnimalsBase SequenceBlotting, SouthernChromosome MappingCloning, MolecularDigestive SystemDNA, ComplementaryDrosophila melanogasterGamma RaysGene ExpressionGenetic Complementation TestImmunoblottingLarvaDNA, ComplementarySodium-Potassium-Exchanging ATPaseSpectrin

Identifiers

PMID8276898
PMCPMC2290878
OpenAlexW1976269413

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-SA
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.