• Product name
  • Description
    Rabbit polyclonal to Mitofusin 2
  • Host species
  • Tested applications
    Suitable for: IHC-P, ICC/IF, WBmore details
  • Species reactivity
    Reacts with: Rat, Human
    Predicted to work with: Mouse, Horse, Dog, Chimpanzee, Macaque monkey, Gorilla, Orangutan
  • Immunogen

    Synthetic peptide conjugated to KLH derived from within residues 500 - 600 of Human Mitofusin 2.

  • Positive control
    • This antibody gave a positive signal in Human Heart Mitochondrial Lysate within Western Blot. It also gave a positive signal in HepG2 cell line in IF and in FFPE human heart tissue sections in IHC.



Our Abpromise guarantee covers the use of ab101055 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 a concentration of 5 µg/ml. Perform heat mediated antigen retrieval before commencing with IHC staining protocol.
ICC/IF Use a concentration of 10 µg/ml.
WB Use a concentration of 1 µg/ml. Detects a band of approximately 77 kDa (predicted molecular weight: 86 kDa).


  • Function
    Essential transmembrane GTPase, which mediates mitochondrial fusion. Fusion of mitochondria occurs in many cell types and constitutes an important step in mitochondria morphology, which is balanced between fusion and fission. MFN2 acts independently of the cytoskeleton. It therefore plays a central role in mitochondrial metabolism and may be associated with obesity and/or apoptosis processes. Overexpression induces the formation of mitochondrial networks. Plays an important role in the regulation of vascular smooth muscle cell proliferation. Involved in the clearance of damaged mitochondria via selective autophagy (mitophagy). Is required for PARK2 recruitment to dysfunctional mitochondria. Involved in the control of unfolded protein response (UPR) upon ER stress including activation of apoptosis and autophagy during ER stress. Acts as an upstream regulator of EIF2AK3 and suppresses EIF2AK3 activation under basal conditions.
  • Tissue specificity
    Ubiquitous; expressed at low level. Highly expressed in heart and kidney.
  • Involvement in disease
    Charcot-Marie-Tooth disease 2A2
    Neuropathy, hereditary motor and sensory, 6A
  • Sequence similarities
    Belongs to the TRAFAC class dynamin-like GTPase superfamily. Dynamin/Fzo/YdjA family. Mitofusin subfamily.
    Contains 1 dynamin-type G (guanine nucleotide-binding) domain.
  • Post-translational
    Phosphorylated by PINK1.
    Ubiquitinated by non-degradative ubiquitin by PARK2, promoting mitochondrial fusion; deubiquitination by USP30 inhibits mitochondrial fusion.
  • Cellular localization
    Mitochondrion outer membrane. Colocalizes with BAX during apoptosis.
  • Information by UniProt
  • Database links
  • Alternative names
    • CMT2A antibody
    • CMT2A2 antibody
    • CPRP 1 antibody
    • CPRP1 antibody
    • EC 3.6.5.- antibody
    • Fzo antibody
    • HSG antibody
    • hyperplasia suppressor gene antibody
    • Hypertension related protein 1 antibody
    • KIAA0214 antibody
    • MARF antibody
    • MFN 2 antibody
    • Mfn2 antibody
    • MFN2_HUMAN antibody
    • Mitochondrial assembly regulatory factor antibody
    • Mitofusin-2 antibody
    • Mitofusin2 antibody
    • Transmembrane GTPase MFN2 antibody
    see all


  • Anti-Mitofusin 2 antibody (ab101055) reactivity with reduced Rat primary neuron cell lysate after SDS-PAGE. Membranes were blocked in 5% milk in TBST+ 0.05% Tween for 1h at 25ºC before incubation with ab101055 (1μg/ml dilution in 5% BSA in PBS + 0.05% Tween) for 16h at 4ºC. The blot was then incubated with an anti-Rabbit HRP-conjugated secondary antibody before developing with ECL

    See Abreview

  • ICC/IF image of ab101055 stained HepG2 cells. The cells were 100% methanol fixed (5 min) and then incubated in 1%BSA / 10% normal goat serum / 0.3M glycine in 0.1% PBS-Tween for 1h to permeabilise the cells and block non-specific protein-protein interactions. The cells were then incubated with the antibody (ab101055, 10µg/ml) overnight at +4°C. The secondary antibody (green) was ab96899, DyLight® 488 goat anti-rabbit IgG (H+L) used at a 1/250 dilution for 1h. Alexa Fluor® 594 WGA was used to label plasma membranes (red) at a 1/200 dilution for 1h. DAPI was used to stain the cell nuclei (blue) at a concentration of 1.43µM. This antibody also gave a positive result in 4% PFA fixed (10 min) HeLa and HepG2 cells at 10µg/ml, and in 100% methanol fixed (5 min) HeLa and MCF7 cells at 10µg/ml.
  • All lanes : Anti-Mitofusin 2 antibody (ab101055) at 1 µg/ml

    Lane 1 : Human Heart Mitochondrial Lysate at 5 µg
    Lane 2 : Human Heart Mitochondrial Lysate at 10 µg

    All lanes : Goat Anti-Rabbit IgG H&L (HRP) preadsorbed (ab97080) at 1/5000 dilution

    Developed using the ECL technique.

    Performed under reducing conditions.

    Predicted band size: 86 kDa
    Observed band size: 77 kDa (why is the actual band size different from the predicted?)
    Additional bands at: 33 kDa, 49 kDa. We are unsure as to the identity of these extra bands.

    Exposure time: 12 minutes
  • IHC image of ab101055 staining in human heart formalin fixed paraffin embedded tissue section, performed on a Leica BondTM system using the standard protocol F. The section was pre-treated using heat mediated antigen retrieval with sodium citrate buffer (pH6, epitope retrieval solution 1) for 20 mins. The section was then incubated with ab101055, 5µg/ml, for 15 mins at room temperature and detected using an HRP conjugated compact polymer system. DAB was used as the chromogen. The section was then counterstained with haematoxylin and mounted with DPX.

    For other IHC staining systems (automated and non-automated) customers should optimize variable parameters such as antigen retrieval conditions, primary antibody concentration and antibody incubation times.


This product has been referenced in:

See all 7 Publications for this product

Customer reviews and Q&As

Abcam has not validated the combination of species/application used in this Abreview.
Western blot
Baboon Tissue lysate - whole (Fetal Skeletal muscle)
Gel Running Conditions
Reduced Denaturing (10% gel)
Loading amount
20 µg
Fetal Skeletal muscle
Blocking step
BSA as blocking agent for 1 hour(s) and 0 minute(s) · Concentration: 5% · Temperature: 25°C

Dr. Soon-Ok Kim

Verified customer

Submitted Mar 10 2017

Abcam guarantees this product to work in the species/application used in this Abreview.
Western blot
Human Cell lysate - whole cell (Prostate cancer cell line)
Gel Running Conditions
Reduced Denaturing
Loading amount
20 µg
Prostate cancer cell line
Blocking step
BSA as blocking agent for 1 hour(s) and 0 minute(s) · Concentration: 4% · Temperature: 25°C

Abcam user community

Verified customer

Submitted Jul 04 2016

Abcam guarantees this product to work in the species/application used in this Abreview.
Western blot
Loading amount
20 µg
Gel Running Conditions
Reduced Denaturing (10)
Rat Cell lysate - whole cell (Primary Neurons)
Primary Neurons
Blocking step
Milk as blocking agent for 1 hour(s) and 0 minute(s) · Concentration: 5% · Temperature: 23°C

Abcam user community

Verified customer

Submitted Jul 19 2013


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