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Literature DB >> 2454476

A calcium-independent chloride current activated by hyperpolarization in Xenopus oocytes.

Abstract

Hyperpolarization of oocytes of Xenopus laevis usually elicits mainly passive currents. However, when polarized to potentials more negative than about -100 mV, oocytes obtained from some donors show a relatively well maintained current that is carried mainly by chloride ions. This response does not depend upon external calcium, and is thus clearly different from the calcium-dependent transient chloride current previously described.

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Year: 1988 PMID： 2454476 DOI： 10.1098/rspb.1988.0018

Source DB: PubMed Journal: Proc R Soc Lond B Biol Sci ISSN： 0950-1193

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Cited

25 in total

1. Calcium-, voltage- and osmotic stress-sensitive currents in Xenopus oocytes and their relationship to single mechanically gated channels.

Authors: Y Zhang; O P Hamill
Journal: J Physiol Date: 2000-02-15 Impact factor: 5.182

2. Heterologous expression of the Na(+),K(+)-ATPase gamma subunit in Xenopus oocytes induces an endogenous, voltage-gated large diameter pore.

Authors: Q Sha; K L Lansbery; D Distefano; R W Mercer; C G Nichols
Journal: J Physiol Date: 2001-09-01 Impact factor: 5.182

6. Modulation of the hyperpolarization-activated Cl- current in human intestinal T84 epithelial cells by phosphorylation.

Authors: J Fritsch; A Edelman
Journal: J Physiol Date: 1996-01-01 Impact factor: 5.182

A calcium-independent chloride current activated by hyperpolarization in Xenopus oocytes.

1. Calcium-, voltage- and osmotic stress-sensitive currents in Xenopus oocytes and their relationship to single mechanically gated channels.

2. Heterologous expression of the Na(+),K(+)-ATPase gamma subunit in Xenopus oocytes induces an endogenous, voltage-gated large diameter pore.

3. Effects of defolliculation on membrane current responses of Xenopus oocytes.

4. Effects of barium, lanthanum and gadolinium on endogenous chloride and potassium currents in Xenopus oocytes.

5. A monovalent cationic conductance that is blocked by extracellular divalent cations in Xenopus oocytes.

6. Modulation of the hyperpolarization-activated Cl- current in human intestinal T84 epithelial cells by phosphorylation.

7. An endogenous inactivating inward-rectifying potassium current in oocytes of Xenopus laevis.

8. Molecular dissection of gating in the ClC-2 chloride channel.

9. Measurement of extracellular ion fluxes using the ion-selective self-referencing microelectrode technique.

10. Xenopus connexin38 forms hemi-gap-junctional channels in the nonjunctional plasma membrane of Xenopus oocytes.