Related Experiment Video

Updated: Jun 1, 2026

Identification of Inositol Phosphate or Phosphoinositide Interacting Proteins by Affinity Chromatography Coupled to Western Blot or Mass Spectrometry
08:07

Identification of Inositol Phosphate or Phosphoinositide Interacting Proteins by Affinity Chromatography Coupled to Western Blot or Mass Spectrometry

Published on: July 26, 2019

Bcl-2 interaction with the inositol 1,4,5-trisphosphate receptor: role in Ca(2+) signaling and disease

Clark W Distelhorst1, Martin D Bootman

  • 1Departments of Medicine, Hematology/Oncology and Pharmacology, Case Comprehensive Cancer Center, Case Western Reserve University School of Medicine, Cleveland, OH 44106, United States. cwd@case.edu

Cell Calcium
|June 2, 2011
PubMed

Insights

The Bcl-2 protein interacts with the inositol 1,4,5-trisphosphate receptor (IP3R) Ca2+ channel, regulating calcium signaling. This interaction plays a dual role in cell survival and death pathways, with implications for human diseases.

Area of Science:

  • Molecular Biology
  • Cellular Physiology
  • Biochemistry

Background:

  • Bcl-2 protein is a key inhibitor of apoptosis.
  • Inositol 1,4,5-trisphosphate receptors (IP3Rs) are Ca2+ channels in the endoplasmic reticulum.
  • Ca2+ signaling is crucial for various cellular processes.

Purpose of the Study:

  • To review the interaction between Bcl-2/Bcl-xl and IP3R.
  • To elucidate the regulation of Ca2+ signaling by this interaction.
  • To discuss the role of this interaction in human diseases.

Main Methods:

  • Literature review of existing studies.
  • Analysis of molecular mechanisms.
  • Synthesis of current knowledge on Bcl-2-IP3R interactions.

Main Results:

  • Bcl-2 and Bcl-xl interact with IP3Rs.
  • These interactions modulate IP3-mediated Ca2+ release.
  • The interactions have a dual role in promoting survival and inhibiting apoptosis signals.

Conclusions:

  • The Bcl-2-IP3R interaction is critical for regulating Ca2+ signaling.
  • This interaction influences both pro-survival and pro-apoptotic Ca2+ signals.
  • Dysregulation of this interaction is implicated in human diseases.

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