• Product name
  • Description
    Rabbit polyclonal to VDAC1/Porin
  • Specificity
    ab28777 recognises Outer mitochondrial membrane protein porin (VDAC1).
  • Tested applications
    Suitable for: IHC-P, WB, ELISAmore details
  • Species reactivity
    Reacts with: Human
    Predicted to work with: Mouse, Rat, Sheep, Rabbit, Horse, Chicken, Guinea pig, Cow, Cat, Dog, Pig, Zebrafish
  • Immunogen

    Synthetic peptide corresponding to Human VDAC1/Porin aa 234-283 (C terminal).


  • Positive control
    • HepG2 cell lysate. Human liver tissue



Our Abpromise guarantee covers the use of ab28777 in the following tested applications.

The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.

Application Abreviews Notes
IHC-P Use at an assay dependent concentration.
WB Use a concentration of 1.25 µg/ml. Predicted molecular weight: 31 kDa. Good results were obtained when blocked with 5% non-fat dry milk in 0.05% PBS-T.
ELISA 1/312500.


  • 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.
  • Tissue specificity
    Heart, liver and skeletal muscle.
  • Sequence similarities
    Belongs to the eukaryotic mitochondrial porin family.
  • 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.
  • Cellular localization
    Mitochondrion outer membrane. Cell membrane.
  • Information by UniProt
  • Database links
  • Alternative names
    • N2441 antibody
    • OMP2 antibody
    • POR1 antibody
    • hVDAC1 antibody
    • MGC111064 antibody
    • Mitochondrial Porin antibody
    • Outer mitochondrial membrane protein porin 1 antibody
    • Plasmalemmal porin antibody
    • Porin 31HL antibody
    • Porin 31HM antibody
    • VDAC antibody
    • VDAC-1 antibody
    • Vdac1 antibody
    • VDAC1_HUMAN antibody
    • Voltage dependent anion channel 1 antibody
    • Voltage dependent anion selective channel protein 1 antibody
    • Voltage-dependent anion-selective channel protein 1 antibody
    • YNL055C antibody
    • YNL2441C antibody
    see all

Anti-VDAC1/Porin antibody images

  • Predicted band size : 31 kDa
    Western blot analysis of HepG2 cell lysate labeling VDAC/Porin with ab28777 at 1.25µg/ml.

  • Predicted band size : 31 kDa
    Western blot analysis of HeLa (lane 1) 293T (lane 2) K562 (lane 3) MDA-MB-231 (lane 4) cell lysates (50µg/ml) labeling VDAC/Porin with ab28777 at 1:1000.A HRP-conjugated anti-rabbit (1:1000) was used as the secondary antibody.
  • Anti-VDAC1/Porin antibody (ab28777) at 1.25 µg/ml + HepG2 cell lysate

    HRP conjugated anti-Rabbit IgG

    Predicted band size : 31 kDa
    Observed band size : 32 kDa (why is the actual band size different from the predicted?)
    Additional bands at : 42 kDa. We are unsure as to the identity of these extra bands.Gel concentration 12%
  • ab28777, at a concentration of 6.0µg/ml, staining human VDAC1 in (liver) by Immunohistochemistry, Paraffin embedded tissue. Arrows indicate positively labelled cells (hepatocytes). Magnification 400X.

References for Anti-VDAC1/Porin antibody (ab28777)

This product has been referenced in:
  • Mancias JD  et al. Quantitative proteomics identifies NCOA4 as the cargo receptor mediating ferritinophagy. Nature 509:105-9 (2014). WB ; Human . Read more (PubMed: 24695223) »
  • Tun AW  et al. Profiling the mitochondrial proteome of Leber's Hereditary Optic Neuropathy (LHON) in Thailand: down-regulation of bioenergetics and mitochondrial protein quality control pathways in fibroblasts with the 11778G>A mutation. PLoS One 9:e106779 (2014). WB ; Human . Read more (PubMed: 25215595) »

See all 5 Publications for this product

Product Wall

Thank you for contacting Abcam.

I am sorry about the issues you have been having with ab28777 in western blot and I do understand why you are concerned about the results you have been receiving with the antibody. As requested I am sending you...

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Thank you for your reply and for providing that extra information.

From the image that you have submitted, it does look as though the antibody ab28777 is detecting a band at about 50kDa, rather than 32kDa. But the band it is detecting is pret...

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Thank you for contacting Abcam.

I am sorry about the issues you are having with ab28777. The antibody is covered under our Abpromise for six months and is guaranteed to work in western blot onhumansamples . If we cannot resolve the issue you ...

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