Inactivation properties of voltage-gated K+ channels altered by presence of beta-subunit
- PMID: 8183366
- DOI: 10.1038/369289a0
Inactivation properties of voltage-gated K+ channels altered by presence of beta-subunit
Abstract
Structural and functional diversity of voltage-gated Kv1-type potassium channels in rat brain is enhanced by the association of two different types of subunits, the membrane-bound, poreforming alpha-subunits and a peripheral beta-subunit. We have cloned a beta-subunit (Kv beta 1) that is specifically expressed in the rat nervous system. Association of Kv beta 1 with alpha-subunits confers rapid A-type inactivation on non-inactivating Kv1 channels (delayed rectifiers) in expression systems in vitro. This effect is mediated by an inactivating ball domain in the Kv beta 1 amino terminus.
Publication types
MeSH terms
Substances
Associated data
- Actions
- Actions
LinkOut - more resources
Full Text Sources
Other Literature Sources
Molecular Biology Databases
