Evidence map›Paper›PMID 3771646›Full record

ArticleThe Journal of cell biology1986

Regulation of glucose-6-phosphate dehydrogenase activity in sea urchin eggs by reversible association with cell structural elements.

R R Swezey, D Epel

Open access · bronzeAbstract readComparative Study
In one paragraph

Article in The Journal of cell biology, 1986. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed, 1 pooled it
5.2field-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

14 citing papers in PubMed, 1 synthesis or guideline pooled it, 59 citations in OpenAlex.

  1. Development of placental abnormalities in location and anatomy.Acta obstetricia et gynecologica Scandinavica · 2020
    Pooled it
  2. Review
  3. Article
  4. Article
  5. Article
  6. Review
  7. Analysis of enzyme reactions in situ.The Histochemical journal · 1995
    Review
  8. Article
  9. Isolation and the complete amino acid sequence of lumenal endoplasmic reticulum glucose-6-phosphate dehydrogenase.Proceedings of the National Academy of Sciences of the United States of America · 1993
    Article
  10. Article
  11. Article
  12. Review
  13. Enzyme stimulation upon fertilization is revealed in electrically permeabilized sea urchin eggs.Proceedings of the National Academy of Sciences of the United States of America · 1988
    Article
  14. 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

2 authors.

R R Swezey
D Epel

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

In unfertilized eggs of the sea urchin, Strongylocentrotus purpuratus, glucose-6-phosphate dehydrogenase (G6PDH) associates with the particulate elements remaining either after homogenization or extraction of eggs with non-ionic detergent in low ionic-strength media. At physiological ionic strength, the extent of G6PDH binding to these particulate elements is proportional to the total protein concentration in the extracts. In fertilized eggs this association is prevented by one or more low molecular weight solutes. The dissociation is reversible, and there are no permanent modifications of either G6PDH or its particulate binding site that affect binding. After fertilization, the time course of dissociation of G6PDH from particulate elements is too fast to be caused by a change in intracellular pH, but it could be triggered, but not maintained, by an increase in the intracellular calcium concentration. Binding of G6PDH to the particulate fraction lowers its catalytic activity at all substrate concentrations. Therefore, release of the enzyme into the cytoplasm may be an important part of the suite of events causing metabolic activation of the egg at fertilization.

Indexed as

AnimalsCalciumCell FractionationFemaleFertilizationGlucosephosphate DehydrogenaseHydrogen-Ion ConcentrationOocytesSea UrchinsSolubilityZygoteCalciumGlucosephosphate Dehydrogenase

Identifiers

PMID3771646
PMCPMC2114359
OpenAlexW2109871327

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.