Permeabilization of the Outer Mitochondrial Membrane by Bcl-2 Proteins

  • Ana J. García-Sáez
  • Gustavo Fuertes
  • Jacob Suckale
  • Jesús Salgado
Part of the Advances in Experimental Medicine and Biology book series (AEMB, volume 677)


The proteins of the Bcl-2 family regulate the release of the apoptotic factors from mitochondria during apoptosis, a key event in physiological cell death. Although their molecular mechanisms remain unclear, the Bcl-2 proteins have been proposed to directly control the permeability of the outer mitochondrial membrane by pore formation. Indeed, they share structural features with the pore forming domains of some bacterial toxins and they can give rise to proteolipidic pores in model membranes. The complex level of regulation needed to decide the fate of the cell is achieved by an intricate interaction network between different members of the family. Current models consider multiple parallel equilibria of activation and inhibition that determine whether the permeabilization of the mitochondrial outer membrane is induced or not.


Pore Formation Mitochondrial Outer Membrane Membrane Binding Antiapoptotic Member Toroidal Pore 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Landes Bioscience and Springer Science+Business Media 2010

Authors and Affiliations

  • Ana J. García-Sáez
    • 1
  • Gustavo Fuertes
    • 2
  • Jacob Suckale
    • 3
  • Jesús Salgado
    • 2
  1. 1.BIOTEC der TU DresdenDresdenGermany
  2. 2.Instituto de Ciencia MolecularUniversity of ValenciaPaterna, ValenciaSpain
  3. 3.Medizinisch Theoretisches Zeutrum der TU DresdenDresdenGermany

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