Abstract
The voltage-dependent anion channel (VDAC) is responsible for ion and metabolite flow across the mitochondrial outer membrane and is a vital component of mitochondrial regulation. After decades of biochemical and biophysical work, three structures of VDAC1 were solved, generating a new platform for probing VDAC’s function. This milestone accomplishment led to major findings in the VDAC field while generating many new fundamental questions regarding channel regulation such as the architecture of the closed state, the mechanisms for gating the channel, and the mode of binding for proteins known to interact with VDAC. This chapter highlights some of the key discoveries in VDAC research since the release of these structures and further explores the remaining challenges that must be overcome to provide a complete understanding of VDAC’s function in the cell.
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Notes
- 1.
For a comprehensive list of all residues, on all multipass membrane proteins predicted to be electrostatically destabilizing in the membrane, please see Ref. Marcoline et al. (2015).
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Acknowledgment
This work was supported by the National Institutes of Health Grant R01 GM 089740 (Grabe) and R01GM078844 (Abramson).
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Bergdoll, L., Grabe, M., Abramson, J. (2017). An Assessment of How VDAC Structures Have Impacted Our Understanding of Their Function. In: Rostovtseva, T. (eds) Molecular Basis for Mitochondrial Signaling. Biological and Medical Physics, Biomedical Engineering. Springer, Cham. https://doi.org/10.1007/978-3-319-55539-3_6
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