The inositol 1,4,5-trisphosphate receptors

Research output: Contribution to journalArticle

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Abstract

The inositol (1,4,5)-trisphosphate receptors (InsP3R) are the intracellular calcium (Ca2+) release channels that play a key role in Ca2+ signaling in cells. Three InsP3R isoforms-InsP3R type 1 (InsP3R1), InsP3 R type 2 (InsP3R2), and InsP3R type 3 (InsP3R3) are expressed in mammals. A single InsP3R isoform is expressed in Drosophila melanogaster (DmInsP3R) and Caenorhabditis elegans (CeInsP3R). The progress made during last decade towards understanding the function and the properties of the InsP3R is briefly reviewed in this chapter. The main emphasis is on studies that revealed structural determinants responsible for the ligand recognition by the InsP3R, ion permeability of the InsP3R, modulation of the InsP3R by cytosolic Ca2+, ATP and PKA phosphorylation and on the recently identified InsP3R-binding partners. The main focus is on the InsP3R1, but the recent information about properties of other InsP3R isoforms is also discussed.

Original languageEnglish (US)
Pages (from-to)261-272
Number of pages12
JournalCell Calcium
Volume38
Issue number3-4 SPEC. ISS.
DOIs
StatePublished - Sep 2005

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Inositol 1,4,5-Trisphosphate Receptors
Protein Isoforms
Caenorhabditis elegans
Drosophila melanogaster
Mammals
Permeability
Adenosine Triphosphate
Phosphorylation
Ions
Ligands
Calcium

Keywords

  • Calcium imaging
  • Calcium signaling
  • Ion channels
  • Mutagenesis
  • Planar lipid bilayers
  • Structure-function

ASJC Scopus subject areas

  • Cell Biology
  • Endocrinology

Cite this

The inositol 1,4,5-trisphosphate receptors. / Bezprozvanny, Ilya.

In: Cell Calcium, Vol. 38, No. 3-4 SPEC. ISS., 09.2005, p. 261-272.

Research output: Contribution to journalArticle

Bezprozvanny, Ilya. / The inositol 1,4,5-trisphosphate receptors. In: Cell Calcium. 2005 ; Vol. 38, No. 3-4 SPEC. ISS. pp. 261-272.
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