Evidence map›Paper›PMID 8606363›Full record

ArticleThe Journal of membrane biology1995

Patch clamp study of the voltage-dependent anion channel in the thylakoid membrane.

I I Pottosin, G Schönknecht

Abstract read
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In one paragraph

Article in The Journal of membrane biology, 1995. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
1.1field-weighted citation impact, top 23% 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, 46 citations in OpenAlex.

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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.

I I PottosinInstitute for Cell Biophysics, Russian Academy of Sciences, Puschino, Moscow region, Russia.
G Schönknecht
University of Würzburg · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Measurements of single channel currents were performed on isolated membrane patches from osmotically swollen thylakoids of the Charophyte alga Nitellopsis obtusa. A channel with a high selectivity for anions over cations and a conductance of 100 to 110 pS (114 mm Cl-) was revealed. The channel has a bell-shaped voltage-dependence of the open probability, with a maximum at about 0 mV. This dependence was explained by two gating processes, one causing channel closure at positive and one at negative potentials. The steepness of the voltage-dependence corresponded to approximately 2 elementary charges to be transferred across the entire membrane in each of the two gating processes. The analysis of the anion channel kinetics in the millisecond time domain revealed an e-fold increase of mean open and decrease of mean closed times when the membrane voltage was made more positive by 20 and 36 mV, respectively. Concert transitions of two identical anion channels between open and long inactivated states were observed, while the millisecond closed-open transitions of the two channels within a burst of activity were kinetically independent.

Indexed as

AnionsChlorophytaChloroplastsElectric ConductivityIntracellular MembranesIon Channel GatingIon ChannelsPatch-Clamp TechniquesAnionsIon Channels

Identifiers

PMID8606363
OpenAlexW2067004649

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.