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Literature DB >> 8274648

Cooperative behavior of K+ channels in the tonoplast of Chara corallina.

Abstract

Spontaneous cooperatively of K+ channels is studied in excised patches of Chara corallina tonoplasts. Bar histograms (dwell time versus number of open channels) are constructed from the time series of current by means of the higher-order Hinkley detector (R. Schultze and S. Draber. 1993. J. Membr. Biol. 132:41-52). A statistical test, based on these bar histograms, shows that the channels are not independent. Further analysis reveals that the channels are cooperatively changing their open probability, which leads to the idea of cooperative mode shifting.

Entities: Species

Mesh：

Substances：
Potassium Channels

Year: 1993 PMID： 8274648 PMCID： PMC1225881 DOI： 10.1016/S0006-3495(93)81194-9

Source DB: PubMed Journal: Biophys J ISSN： 0006-3495 Impact factor: 4.033

18 in total

Cooperative behavior of K+ channels in the tonoplast of Chara corallina.

1. Yet another approach to the dwell-time omission problem of single-channel analysis.

2. Reversible uncoupling of inactivation in N-type calcium channels.

3. Estimating the number of channels in patch recordings.

4. Evidence for interactions between batrachotoxin-modified channels in hybrid neuroblastoma cells.

5. Correcting single channel data for missed events.

6. A nonlinear filter algorithm for the detection of jumps in patch-clamp data.

7. Stochastic behavior of a many-channel membrane system.

8. Estimation of single channel kinetic parameters from data subject to limited time resolution.

9. Equivalence of aggregated Markov models of ion-channel gating.

10. Different modes of Ca channel gating behaviour favoured by dihydropyridine Ca agonists and antagonists.

1. Evidence for cooperativity between nicotinic acetylcholine receptors in patch clamp records.

2. Collective behaviour of crown channels.

3. Estimation of kinetic rate constants from multi-channel recordings by a direct fit of the time series.

4. Superposition properties of interacting ion channels.

5. Detection of jumps in single-channel data containing subconductance levels.

6. Correction for missed events based on a realistic model of a detector.

7. Description of interacting channel gating using a stochastic Markovian model.

8. Stochastic model of endothelial TRPV4 calcium sparklets: effect of bursting and cooperativity on EDH.

9. Can endothelial hemoglobin-α regulate nitric oxide vasodilatory signaling?

10. Response of ryanodine receptor channels to Ca2+ steps produced by rapid solution exchange.