IRBIT: A regulator of ion channels and ion transporters

Hideaki Ando, Katsuhiro Kawaai, Katsuhiko Mikoshiba

Research output: Contribution to journalReview article

25 Citations (Scopus)

Abstract

IRBIT (also called AHCYL1) was originally identified as a binding protein of the intracellular Ca2+ channel inositol 1,4,5-trisphosphate (IP3) receptor and functions as an inhibitory regulator of this receptor. Unexpectedly, many functions have subsequently been identified for IRBIT including the activation of multiple ion channels and ion transporters, such as the Na+/HCO3- co-transporter NBCe1-B, the Na+/H+ exchanger NHE3, the Cl- channel cystic fibrosis transmembrane conductance regulator (CFTR), and the Cl-/HCO3- exchanger Slc26a6. The characteristic serine-rich region in IRBIT plays a critical role in the functions of this protein. In this review, we describe the evolution, domain structure, expression pattern, and physiological roles of IRBIT and discuss the potential molecular mechanisms underlying the coordinated regulation of these diverse ion channels/transporters through IRBIT. This article is part of a Special Issue entitled: Calcium signaling in health and disease. Guest Editors: Geert Bultynck, Jacques Haiech, Claus W. Heizmann, Joachim Krebs, and Marc Moreau.

Original languageEnglish
Pages (from-to)2195-2204
Number of pages10
JournalBiochimica et Biophysica Acta - Molecular Cell Research
Volume1843
Issue number10
DOIs
Publication statusPublished - 2014 Jan 1
Externally publishedYes

Fingerprint

Ion Channels
Chloride-Bicarbonate Antiporters
Ions
Symporters
Inositol 1,4,5-Trisphosphate Receptors
Cystic Fibrosis Transmembrane Conductance Regulator
Sodium-Hydrogen Antiporter
Inositol 1,4,5-Trisphosphate
Calcium Signaling
Serine
Carrier Proteins
Health
Proteins

Keywords

  • IP3 receptor
  • IRBIT

ASJC Scopus subject areas

  • Molecular Biology
  • Cell Biology

Cite this

IRBIT : A regulator of ion channels and ion transporters. / Ando, Hideaki; Kawaai, Katsuhiro; Mikoshiba, Katsuhiko.

In: Biochimica et Biophysica Acta - Molecular Cell Research, Vol. 1843, No. 10, 01.01.2014, p. 2195-2204.

Research output: Contribution to journalReview article

Ando, Hideaki ; Kawaai, Katsuhiro ; Mikoshiba, Katsuhiko. / IRBIT : A regulator of ion channels and ion transporters. In: Biochimica et Biophysica Acta - Molecular Cell Research. 2014 ; Vol. 1843, No. 10. pp. 2195-2204.
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