Mitochondrial outer membrane permeabilization at the single molecule level

Dadsena, Shashank; Jenner, Andreas; García-Sáez, Ana J.

doi:10.1007/s00018-021-03771-4

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Mitochondrial outer membrane permeabilization at the single molecule level

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Dadsena, S., Jenner, A., & García-Sáez, A. J. (2021). Mitochondrial outer membrane permeabilization at the single molecule level. Cellular and Molecular Life Sciences, 78(8), 3777-3790. doi:10.1007/s00018-021-03771-4.

Cite as: https://hdl.handle.net/21.11116/0000-000E-1208-5

Abstract

Apoptotic cell death is essential for development, immune function or tissue homeostasis, and its mis-regulation is linked to various diseases. Mitochondrial outer membrane permeabilization (MOMP) is a central event in the intrinsic apoptotic pathway and essential to control the execution of cell death. Here we review current concepts in regulation of MOMP focusing on the interaction network of the Bcl-2 family proteins as well as further regulatory elements influencing MOMP. As MOMP is a complex spatially and temporally controlled process, we point out the importance of single-molecule techniques to unveil processes which would be masked by ensemble measurements. We report key single-molecule studies applied to decipher the composition, assembly mechanism and structure of protein complexes involved in MOMP regulation.