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The voltage-dependent anion channel in endoplasmic/sarcoplasmic reticulum: characterization, modulation and possible
V Shoshan-Barmatz1, A Israelson
1Department of Life Sciences and The Zlotowski Center for Neuroscience, Ben-Gurion University of the Negev, Beer-Sheva, Israel. vardasb@bgumail.bgu.ac.il
The Journal of Membrane Biology
|September 10, 2005
Summary
The voltage-dependent anion channel (VDAC) is crucial for cell metabolism and calcium (Ca2+) homeostasis. This review explores VDAC
Area of Science:
- Mitochondrial biology
- Cellular metabolism
- Ion channel function
Background:
- Metabolic coupling exists between cytosol, ER/SR, and mitochondria.
- Mitochondrial calcium (Ca2+) homeostasis and ATP production are central to this crosstalk.
- The voltage-dependent anion channel (VDAC) is a key transporter at the outer mitochondrial membrane.
Purpose of the Study:
- To review the localization and function of VDAC.
- To focus on VDAC's role as a skeletal muscle sarcoplasmic reticulum channel.
- To discuss the regulation and physiological relevance of VDAC.
Main Methods:
- Literature review of VDAC localization and function.
- Analysis of VDAC's role in cellular signaling.
- Examination of VDAC regulation by proteins and inhibitors.
Main Results:
- VDAC is a key player in mitochondrial metabolite and ion signaling.
- VDAC is proposed to exist in extramitochondrial membranes.
- Regulation of VDAC is critical for cellular metabolism.
Conclusions:
- VDAC is a crucial interface between mitochondrial and cellular metabolism.
- VDAC's physiological relevance extends to Ca2+ homeostasis and apoptosis.
- Understanding VDAC regulation is vital for cellular function.