Purification notesWhole antiserum is fractionated and then further purified by ion-exchange chromatography to provide the IgG fraction of antiserum that is essentially free of other rabbit serum proteins.
The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.
Application notesDot: 1/2000, determined using rat liver mitochondria extract.
Not tested in other applications.
Optimal dilutions/concentrations should be determined by the end user.
FunctionForms 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.
Tissue specificityHeart, liver and skeletal muscle.
Sequence similaritiesBelongs to the eukaryotic mitochondrial porin family.
DomainConsists 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.