• Product name

    Human sTNF RI Matched Antibody Pair Kit
    See all Soluble TNF Receptor I kits
  • Detection method

  • Assay type

    ELISA set
  • Range

    7.81 pg/ml - 500 pg/ml
  • Species reactivity

    Reacts with: Human
  • Product overview

    Matched Antibody Pair kit is a titrated unlabeled capture antibody, a titrated biotin-labeled detector and a calibrated protein standard. The Matched Antibody Pair Kit can be used to quantify native and recombinant human sTNF RI.

    Both capture and detector antibodies are rabbit monoclonal antibodies.

    Optimization of the kit reagents to sample type, immunoassay format or instrumentation may be required. Guidelines for use of this kit in a standard 96-well microplate sandwich ELISA using HRP/TMB system of colorimetric detection is described in this assay procedure for the purposes of quantification.

    Additional protocol information and tips on the use of the Matched Antibody Pair kits for sandwich ELISA can be found on our website.

    For additional information on the performance of the antibody pair used in this kit, please see our equivalent SimpleStep ELISA® (ab209881) which uses the same antibody pair.

    To receive an electronic copy of the Certificate of Analysis, please send an email with "CoA for matched antibody pair kit" in the subject line and the desired product number and lot number in the body of the email.

    Buffer information:
    The capture antibody is glycerol free. The detector antibody contains glycerol.

  • Tested applications

    Suitable for: ELISAmore details
  • Platform



  • Storage instructions

    Store at -20°C. Please refer to protocols.
  • Components 10 x 96 tests 2 x 96 tests
    Human sTNF RI Capture Antibody 1 x 100µg 1 x 20µg
    Human sTNF RI Detector Antibody 1 x 25µg 1 x 5µg
    Human sTNF RI Lyophilized Protein 1 vial 1 vial
  • Research areas

  • Relevance

    TNF RI (CD120a) is a 55 kDa transmembrane glycoprotein that is expressed by virtually all nucleated mammalian cells. Among the numerous cells known to express TNF RI are hepatocytes, monocytes and neutrophils, cardiac muscle cells, endothelial cells, and CD34+ hematopoietic progenitors. Both TNF alpha and TNF beta bind to TNF RI. Soluble TNF alpha binds with a Kda in the range of 20-60 pM, while TNF beta binds with a Kda equal to 650 pM. TNF RI relative to TNF RII seems to be the more physiologically relevant receptor, whereas TNF R2 appears to play a direct role in only a limited number of TNF responses. Soluble TNF RI, which blocks TNF alpha activity, has been identified in both urine and blood (1-3 ng/mL). Serum levels of sTNF receptors increase dramatically in certain pathological situations.
  • Cellular localization

  • Alternative names

    • CD120a
    • TBP1
    • TNFR1
    • TNFR55
    • TNFRSF1A
    • Tumor necrosis factor receptor 1
    see all
  • Database links

Associated products


Our Abpromise guarantee covers the use of ab215400 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
ELISA Use at an assay dependent concentration.


  • Standard calibration curve. Background subtracted values are graphed.



ab215400 has not yet been referenced specifically in any publications.

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