• Product nameHuman DR4 ELISA Kit (CD261)
  • Detection methodColorimetric
  • Precision
    Sample n Mean SD CV%
    A 8 475pg/ml 13 2.76%
    B 8 54pg/ml 4 7.57%
    Sample n Mean SD CV%
    A 12 498pg/ml 40 8.11%
    B 12 53pg/ml 7 13.87%
  • Sample type
    Cell culture supernatant, Serum, Plasma
  • Assay typeSandwich (quantitative)
  • Sensitivity
    < 8 pg/ml
  • Range
    31.25 pg/ml - 1000 pg/ml
  • Recovery

    Sample specific recovery
    Sample type Average % Range
    Serum 93.4 250pg/ml - 1000pg/ml

  • Assay time
    2h 30m
  • Assay durationMultiple steps standard assay
  • Species reactivity
    Reacts with: Human
  • Product overview

    Abcam’s DR4 (CD261) Human in vitro ELISA (Enzyme-Linked Immunosorbent Assay) kit is designed for the quantitative measurement of DR4 in serum, plasma, buffered solutions and cell culture media.

    A monoclonal antibody specific for DR4 has been coated onto the wells of the microtiter strips provided. Samples, including standards of known DR4 concentrations, control specimens or unknowns are pipetted into these wells. During the first incubation, the standards or samples and a biotinylated monoclonal antibody specific for DR4 are simultaneously incubated. After washing, the enzyme Streptavidin-HRP, that binds the biotinylated antibody is added, incubated and washed. A TMB substrate solution is added which acts on the bound enzyme to induce a colored reaction product. The intensity of this colored product is directly proportional to the concentration of DR4 present in the samples.

    This kit will recognize both endogenous and recombinant Human DR4.

  • Tested applicationsSuitable for: Sandwich ELISAmore details
  • PlatformMicroplate


  • RelevanceHuman Trail R1, CD261 or DR4 (Death Receptor 4) is a TNF receptor, which is a receptor for Trail (APO2 ligand). DR4 is involved in apoptosis. In the Trail receptor family, DR4, but also Trail R2 (DR5) transduce an apoptosis signal, whereas Trail R3 (DcR1) and Trail R4 (DcR2) antagonize TRAIL-induced apoptosis. Binding of trimeric Trail to DR4 induces apoptosis by oligomerization (likely to be trimerization) of the receptor. DR4 cDNA encodes a 468 amino acid residue precursor protein containing extracellular cysteine-rich domains, a transmembrane domain and a cytoplasmic death domain. DR4 shares 55% of its amino acid sequence with Trail R2. DR4 is widely expressed in normal tissue.
  • Cellular localizationCell Membrane; single-pass type I membrane protein
  • Alternative names
    • APO2
    • CD261
    • Death receptor 4
    • TNFRSF10A
    • TRAIL receptor 1
    • TRAILR1
    see all
  • Database links


Our Abpromise guarantee covers the use of ab46510 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
Sandwich ELISA Use at an assay dependent concentration.

Human DR4 ELISA Kit (CD261) images

  • Representative Standard Curve using ab46510


References for Human DR4 ELISA Kit (CD261) (ab46510)

ab46510 has not yet been referenced specifically in any publications.

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A standard lysis buffer (such as RIPA buffer) can be used to prepare the cell lysates and the use protease inhibitor is indeed recommended.

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