K+ channel selectivity depends on kinetic as well as thermodynamic factors.

Abstract excerpt

Potassium channels are necessary for a number of essential biological tasks such as the generation of action potentials and setting the resting membrane potential in cells, both of which require that these channels selectively permit the passage of potassium ions while suppressing the flow of other ions. Generally, this selectivity is attributed to a narrow stretch of the channel known as the selectivity filter....

Topics

Share this publication in a Topic to start or enrich a Post.

• Share to Cell Membrane Permeability
• Share to G Protein-Coupled Inwardly-Rectifying Potassium Channels