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Literature DB >> 5269227

Cooperative effects in models of steady-state transport across membranes. 3. Simulation of potassium ion transport in nerve.

Abstract

An extremely simple membrane transport model simulates qualitatively the observed flux-potential curves for steady-state potassium ion transport across a nerve (squid) membrane in the special case of high external potassium ion concentration. The transporting units (protein molecules) in the model are assumed to exist in two different conformations, which interact cooperatively. The membrane potential induces a transition between the two conformations by virtue, primarily, of a polarizability difference in the two conformations. Differential proton binding may make an important contribution to this effect.

Entities: Chemical

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Year: 1970 PMID： 5269227 PMCID： PMC283093 DOI： 10.1073/pnas.66.3.607

Source DB: PubMed Journal: Proc Natl Acad Sci U S A ISSN： 0027-8424 Impact factor: 11.205

4 in total

11 in total

4. On the theory of ion transport across the nerve membrane. VI. Free energy and activation free energies of conformational change.

Authors: T L Hill; Y Chen
Journal: Proc Natl Acad Sci U S A Date: 1972-07 Impact factor: 11.205

8. Cooperative effects in models of steady-state transport across membranes. IV. One-site, two-site, and multisite models.

Authors: T L Hill; Y D Chen
Journal: Biophys J Date: 1971-09 Impact factor: 4.033

9. On the theory of ion transport across the nerve membrane. 3. Potassium ion kinetics and cooperativity (with x=4,6,9).

Authors: T L Hill; Y D Chen
Journal: Proc Natl Acad Sci U S A Date: 1971-10 Impact factor: 11.205

10. Cole-Moore effect in the frog node.

Authors: G Ganot; Y Palti; R Staempfli
Journal: Proc Natl Acad Sci U S A Date: 1978-07 Impact factor: 11.205

Cooperative effects in models of steady-state transport across membranes. 3. Simulation of potassium ion transport in nerve.

1. Excitation of the squid axon membrane in isosmotic potassium chloride.

2. The Influence of Dipole Moment Fluctuations on the Dielectric Increment of Proteins in Solution.

3. Cooperative effects in models of steady-state transport across membranes. II. Oscillating phase transition.

4. Electric fields and the cooperativity of biological membranes.

1. Cooperative denaturation kinetics of homogeneous polymers.

2. Theoretical study of the effect of enzyme-enzyme interactions on steady-state enzyme kinetics.

3. Further study of the effect of enzyme-enzyme interactions on steady-state enzyme kinetics.

4. On the theory of ion transport across the nerve membrane. VI. Free energy and activation free energies of conformational change.

5. Electrically induced phase transitions via the dipole model in excitable membranes.

6. The effect of potassium diffusion through the Schwann cell layer on potassium conductance of the squid axon.

7. Towards a physical understanding of physiological excitation as a cooperative specific adsorption phenomenon.

8. Cooperative effects in models of steady-state transport across membranes. IV. One-site, two-site, and multisite models.

9. On the theory of ion transport across the nerve membrane. 3. Potassium ion kinetics and cooperativity (with x=4,6,9).

10. Cole-Moore effect in the frog node.