Modulation of BK Channel Function by Auxiliary Beta and Gamma Subunits

Q. Li, J. Yan

Research output: Chapter in Book/Report/Conference proceedingChapter

64 Scopus citations

Abstract

The large-conductance, Ca2 +- and voltage-activated K+ (BK) channel is ubiquitously expressed in mammalian tissues and displays diverse biophysical or pharmacological characteristics. This diversity is in part conferred by channel modulation with different regulatory auxiliary subunits. To date, two distinct classes of BK channel auxiliary subunits have been identified: β subunits and γ subunits. Modulation of BK channels by the four auxiliary β (β1–β4) subunits has been well established and intensively investigated over the past two decades. The auxiliary γ subunits, however, were identified only very recently, which adds a new dimension to BK channel regulation and improves our understanding of the physiological functions of BK channels in various tissues and cell types. This chapter will review the current understanding of BK channel modulation by auxiliary β and γ subunits, especially the latest findings.

Original languageEnglish (US)
Title of host publicationInternational Review of Neurobiology
PublisherAcademic Press Inc.
Pages51-90
Number of pages40
DOIs
StatePublished - 2016

Publication series

NameInternational Review of Neurobiology
Volume128
ISSN (Print)0074-7742
ISSN (Electronic)2162-5514

Keywords

  • Auxiliary subunit
  • BK channel
  • Mechanism
  • Modulation
  • Modulator
  • Regulation

ASJC Scopus subject areas

  • Clinical Neurology
  • Cellular and Molecular Neuroscience

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