Evidence map›Paper›PMID 9132420›Full record

ArticleJournal of bioenergetics and biomembranes1996

The mitochondrial inner membrane anion channel is inhibited by DIDS.

A D Beavis, H Davatol-Hag

Abstract read
PubMed Publisher
In one paragraph

Article in Journal of bioenergetics and biomembranes, 1996. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed
0.5field-weighted citation impact, top 36% 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

31 citing papers in PubMed, 62 citations in OpenAlex.

  1. Review
  2. Review
  3. Review
  4. Mitochondrial ion channels in cardiac function.American journal of physiology. Cell physiology · 2021
    Review
  5. Article
  6. Anion Channels of Mitochondria.Handbook of experimental pharmacology · 2017
    Review
  7. Article
  8. Article
  9. Review
  10. Article
  11. Review
  12. Article
  13. Metabolic stress, reactive oxygen species, and arrhythmia.Journal of molecular and cellular cardiology · 2012
    Review
  14. Article
  15. Article
  16. Cardiac mitochondria and arrhythmias.Cardiovascular research · 2010
    Review
  17. Nicotine induces resistance to chemotherapy by modulating mitochondrial signaling in lung cancer.American journal of respiratory cell and molecular biology · 2009
    Article
  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

2 authors at 1 institution in 1 country.

A D BeavisDepartment of Pharmacology, Medical College of Ohio, Toledo 43699-0008, USA.
H Davatol-Hag
University of Toledo Medical Center · US

Funding

SMALL INSTRUMENTATION GRANTS15HL047735 · NHLBI · UNIVERSITY OF MEMPHIS · PI TURITTO, VINCENT T. · 1991 to 1991
–
NHLBI NIH HHS HL-47735
6 · The paper itself

Abstract

The mitochondrial inner membrane anion channel (IMAC) is a channel, identified by flux studies in intact mitochondria, which has a broad anion selectivity and is maintained closed or inactive by matrix Mg2+ and H+. We now present evidence that this channel, like many other chloride/anion channels, is reversibly blocked/inhibited by stilbene-2,2'-disulfonates. Inhibition of malonate transport approaches 100% with IC50 values of 26, 44, and 88 mu M for DIDS, H2-DIDS, and SITS respectively and Hill coefficients < or = 1. In contrast, inhibition of Cl- transport is incomplete, reaching a maximum of about 30% at pH 7.4 and 65% at pH 8.4 with an IC50 which is severalfold higher than that for malonate. The IC50 for malonate transport is decreased about 50% by pretreatment of the mitochondria with N-ethylmaleimide. Raising the assay pH from 7.4 to 8.4 increases the IC50 by about 50%, but under conditions where only the matrix pH is made alkaline the IC50 is decreased slightly. These properties and competition studies suggest that DIDS inhibits by binding to the same site as Cibacron blue 3GA. In contrast, DIDS does not appear to compete with the fluorescein derivative Erythrosin B for inhibition. These findings not only provide further evidence that IMAC may be more closely related to other "Cl-" channels than previously thought, but also suggest that other Cl- channels may be sensitive to some of the many regulators of IMAC which have been identified.

Indexed as

4,4'-Diisothiocyanostilbene-2,2'-Disulfonic AcidAnimalsAnionsBinding SitesChloride ChannelsErythrosineEthylmaleimideHydrogen-Ion ConcentrationIntracellular MembranesIn Vitro TechniquesIon ChannelsIon TransportKineticsMitochondriaTriazines4,4'-Diisothiocyanostilbene-2,2'-Disulfonic AcidAnionsChloride ChannelsCibacron Blue F 3GAErythrosineEthylmaleimideIon ChannelsTriazines

Identifiers

PMID9132420
OpenAlexW2025183582

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.