Anti-TNF Receptor II antibody [MR2-1] (ab8161)


  • Product nameAnti-TNF Receptor II antibody [MR2-1]See all TNF Receptor II primary antibodies ...
  • Description
    Mouse monoclonal [MR2-1] to TNF Receptor II
  • SpecificityThe antibody reacts with the extra-cellular part of the TNF-R II and with the soluble receptor.
  • Tested applicationsICC/IF, WB, IP, Flow Cytmore details
  • Species reactivity
    Reacts with: Human, Cynomolgus Monkey, Rhesus monkey
  • Immunogen

    soluble TNF-R75 from culture supernatant of cells transfected with the extracellular part of TNF-R75, purified by affinity chromatography on a TNF-coupled agarose column.



Our Abpromise guarantee covers the use of ab8161 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
ICC/IF Use a concentration of 1 µg/ml.
WB Use at an assay dependent dilution. Predicted molecular weight: 46 kDa.
IP Use at an assay dependent dilution.
Flow Cyt Use 2µg for 106 cells.


  • FunctionReceptor with high affinity for TNFSF2/TNF-alpha and approximately 5-fold lower affinity for homotrimeric TNFSF1/lymphotoxin-alpha. The TRAF1/TRAF2 complex recruits the apoptotic suppressors BIRC2 and BIRC3 to TNFRSF1B/TNFR2. This receptor mediates most of the metabolic effects of TNF-alpha. Isoform 2 blocks TNF-alpha-induced apoptosis, which suggests that it regulates TNF-alpha function by antagonizing its biological activity.
  • Sequence similaritiesContains 4 TNFR-Cys repeats.
  • Post-translational
    Phosphorylated; mainly on serine residues and with a very low level on threonine residues.
    A soluble form (tumor necrosis factor binding protein 2) is produced from the membrane form by proteolytic processing.
  • Cellular localizationSecreted and Cell membrane.
  • Information by UniProt
  • Database links
  • Alternative names
    • CD 120b antibody
    • CD120b antibody
    • CD120b antigen antibody
    • Etanercept antibody
    • p75 antibody
    • p75TNFR antibody
    • p80 TNF alpha receptor antibody
    • p80 TNF-alpha receptor antibody
    • TBP-2 antibody
    • TBP2 antibody
    • TBPII antibody
    • TNF R II antibody
    • TNF R2 antibody
    • TNF R75 antibody
    • TNF-R2 antibody
    • TNF-RII antibody
    • TNFBR antibody
    • TNFR 2 antibody
    • TNFR-II antibody
    • TNFR2 antibody
    • TNFR75 antibody
    • TNFR80 antibody
    • TNFRII antibody
    • TNFRSF 1B antibody
    • TNFRSF1B antibody
    • TNR1B antibody
    • TNR1B_HUMAN antibody
    • Tumor necrosis factor beta receptor antibody
    • Tumor necrosis factor binding protein 2 antibody
    • Tumor necrosis factor receptor 2 antibody
    • Tumor necrosis factor receptor superfamily member 1B precursor antibody
    • Tumor necrosis factor receptor type II antibody
    • Tumor necrosis factor-binding protein 2 antibody
    see all

Anti-TNF Receptor II antibody [MR2-1] images

  • ICC/IF image of ab8161 stained Hek293 cells. The cells were 4% formaldehyde fixed (10 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 (ab8161, 1µg/ml) overnight at +4°C. The secondary antibody (green) was Alexa Fluor® 488 goat anti-mouse IgG (H+L) used at a 1/1000 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.

  • Predicted band size : 46 kDa

    Image from Ding B et al, J Biol Chem 284:19331-9 (2009), Fig 2.

  • Overlay histogram showing HL60 cells stained with ab8161 (red line). The cells were fixed with 80% methanol (5 min) and incubated in 1x PBS / 10% normal goat serum / 0.3M glycine to block non-specific protein-protein interactions. The cells were then incubated with the antibody (ab8161, 2µg/1x106 cells) for 30 min at 22ºC. The secondary antibody used was DyLight® 488 goat anti-mouse IgG (H+L) (ab96879) at 1/500 dilution for 30 min at 22ºC. Isotype control antibody (black line) was mouse IgG1 [ICIGG1] (ab91353, 2µg/1x106 cells) used under the same conditions. Acquisition of >5,000 events was performed.

    Please note that Abcam do not have any data for use of this antibody on non-fixed cells. We welcome any customer feedback.

References for Anti-TNF Receptor II antibody [MR2-1] (ab8161)

This product has been referenced in:
  • Miettinen JA  et al. Tumor necrosis factor alpha promotes the expression of immunosuppressive proteins and enhances the cell growth in a human bone marrow-derived stem cell culture. Exp Cell Res 317:791-801 (2011). ICC/IF ; Human . Read more (PubMed: 21182837) »
  • Ding B  et al. FOXO3a regulates oxygen-responsive expression of tumor necrosis factor receptor 2 in human dermal microvascular endothelial cells. J Biol Chem 284:19331-9 (2009). WB ; Human . Read more (PubMed: 19473970) »

See all 4 Publications for this product

Product Wall

Thank you for contacting us. We may be able to custom make this antibody in an azide-free form for bulk orders of 10 or more vials. If you are interested in a custom bulk purchase, please contact my colleagues at and they can hel...

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Application Western blot
Sample Human Cell lysate - whole cell (TF-1 cells)
Loading amount 30 µg
Specification TF-1 cells
Gel Running Conditions Reduced Denaturing
Blocking step Milk as blocking agent for 1 hour(s) and 0 minute(s) · Concentration: 5%

Abcam user community

Verified customer

Submitted Aug 01 2008

Application Immunoprecipitation
Sample Human Cell lysate - whole cell (TF-1 cells)
Total protein in input 30 µg
Specification TF-1 cells
Immuno-precipitation step Protein A/G

Abcam user community

Verified customer

Submitted Sep 18 2007

Application Flow Cytometry
Sample Human Cell (Brain microvascular endothelial cells)
Specification Brain microvascular endothelial cells
Permeabilization No

Abcam user community

Verified customer

Submitted Feb 02 2007

Thank you for your enquiry. We have just received the following information from the source of ab8161: The antibody to human CD120b, TNF-RII (p75/p80), clone MR2-1 were generated as described in the following article: Leeuwenberg, JFM et al; Slow r...

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I'm afraid that the precise AA seq that this antibody recognises has not been determined.

This antbody has not yet been tested on rat tissue

The agonistic properties of HM2007 are tested in a cytotoxicity assay with KYM-1 cells. In this cytotoxicity assay concentrations of 0.03 ; 0.3 and 3 microgram/ml antibody were used.