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Protein: VDAC1_HUMAN

Voltage-dependent anion-selective channel protein 1

FUNCTION: Forms a channel through the mitochondrial outer membrane and also the plasma membrane. The channel at the outer mitochondrial membrane allows diffusion of small hydrophilic molecules; in the plasma membrane it is involved in cell volume regulation and apoptosis. It adopts an open conformation at low or zero membrane potential and a closed conformation at potentials above 30-40 mV. The open state has a weak anion selectivity whereas the closed state is cation-selective. May participate in the formation of the permeability transition pore complex (PTPC) responsible for the release of mitochondrial products that triggers apoptosis. more...

SUBUNIT: Interacts with hexokinases (By similarity). Interacts with BCL2L1. Interacts with influenza A virus PB1-F2 protein.

SUBCELLULAR LOCATION: Mitochondrion outer membrane. Cell membrane.

TISSUE SPECIFICITY: Heart, liver and skeletal muscle.

DOMAIN: Consists mainly of a membrane-spanning beta-barrel formed by 19 beta-strands. The helical N-terminus folds back into the pore opening and plays a role in voltage-gated channel activity.

SIMILARITY: Belongs to the eukaryotic mitochondrial porin family.


COPYRIGHT: Protein annotation is derived from the UniProt Consortium ( Distributed under the Creative Commons Attribution-NoDerivs License.



  • Homo sapiens

Gene Symbol:

  • VDAC1


  • VDAC-1
  • hVDAC1
  • Outer mitochondrial membrane protein porin 1
  • Plasmalemmal porin
  • Porin 31HL
  • Porin 31HM

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