Astana Biomed Group, an authorized Abcam distributor in Central Asia

Human TNF alpha ELISA Kit (ab108908)

Key features and details

  • Sensitivity: 0.016 ng/ml
  • Range: 0.0156 ng/ml - 1 ng/ml
  • Sample type: Cell culture supernatant, Plasma, Serum
  • Detection method: Colorimetric
  • Assay type: Sandwich (quantitative)
  • Reacts with: Human

Overview

  • Product name

    Human TNF alpha ELISA Kit
    See all TNF alpha kits

  • Detection method

    Colorimetric

  • Precision

    Intra-assay
    Sample n Mean SD CV%
    Overall 4.8%
    Inter-assay
    Sample n Mean SD CV%
    Overall 7%

  • Sample type

    Cell culture supernatant, Serum, Plasma

  • Assay type

    Sandwich (quantitative)

  • Sensitivity

    = 0.016 ng/ml

  • Range

    0.016 ng/ml - 1 ng/ml

  • Recovery

    98 %

  • Assay time

    5h 00m

  • Assay duration

    Multiple steps standard assay

  • Species reactivity

    Reacts with: Human

  • Product overview

    Abcam’s TNF alpha Human in vitro ELISA (Enzyme-Linked Immunosorbent Assay) kit is designed for the quantitative measurement of TNF alpha concentrations in Human cell culture supernatants, serum and plasma.


    A TNF alpha specific antibody has been precoated onto 96-well plates and blocked. Standards or test samples are added to the wells and subsequently a TNF alpha specific biotinylated detection antibody is added and then followed by washing with wash buffer. Streptavidin-Peroxidase Conjugate is added and unbound conjugates are washed away with wash buffer. TMB is then used to visualize Streptavidin-Peroxidase enzymatic reaction. TMB is catalyzed by Streptavidin-Peroxidase to produce a blue color product that changes into yellow after adding acidic stop solution. The density of yellow coloration is directly proportional to the amount of TNF alpha captured in plate. This assay recognizes both natural and recombinant Human TNF alpha.


    Get results in 90 minutes with Human TNF alpha ELISA Kit (ab181421) from our SimpleStep ELISA® range.


    The entire kit may be stored at -20°C for long term storage before reconstitution - Avoid repeated freeze-thaw cycles.

  • Platform

    Microplate

Properties

  • Storage instructions

    Store at -20°C. Please refer to protocols.
  • Components 1 x 96 tests
    100X Streptavidin-Peroxidase Conjugate 1 x 80µl
    10X Diluent N Concentrate 1 x 30ml
    1X Standard Diluent 1 x 2ml
    20X Wash Buffer Concentrate 2 x 30ml
    60X Biotinylated Human TNF alpha Antibody 1 x 100µl
    Chromogen Substrate 1 x 8ml
    Sealing Tapes 3 units
    Stop Solution 1 x 12ml
    TNF alpha Microplate (12 x 8 well strips) 1 unit
    TNF alpha Standard 1 x 2 vials

  • Research areas

  • Function

    Cytokine that binds to TNFRSF1A/TNFR1 and TNFRSF1B/TNFBR. It is mainly secreted by macrophages and can induce cell death of certain tumor cell lines. It is potent pyrogen causing fever by direct action or by stimulation of interleukin-1 secretion and is implicated in the induction of cachexia, Under certain conditions it can stimulate cell proliferation and induce cell differentiation.

  • Involvement in disease

    Genetic variations in TNF are a cause of susceptibility psoriatic arthritis (PSORAS) [MIM:607507]. PSORAS is an inflammatory, seronegative arthritis associated with psoriasis. It is a heterogeneous disorder ranging from a mild, non-destructive disease to a severe, progressive, erosive arthropathy. Five types of psoriatic arthritis have been defined: asymmetrical oligoarthritis characterized by primary involvement of the small joints of the fingers or toes; asymmetrical arthritis which involves the joints of the extremities; symmetrical polyarthritis characterized by a rheumatoidlike pattern that can involve hands, wrists, ankles, and feet; arthritis mutilans, which is a rare but deforming and destructive condition; arthritis of the sacroiliac joints and spine (psoriatic spondylitis).

  • Sequence similarities

    Belongs to the tumor necrosis factor family.

  • Post-translational
    modifications

    The soluble form derives from the membrane form by proteolytic processing.
    The membrane form, but not the soluble form, is phosphorylated on serine residues. Dephosphorylation of the membrane form occurs by binding to soluble TNFRSF1A/TNFR1.
    O-glycosylated; glycans contain galactose, N-acetylgalactosamine and N-acetylneuraminic acid.

  • Cellular localization

    Secreted and Cell membrane.
  • Information by UniProt

  • Alternative names

    • APC1
    • APC1 protein
    • Cachectin
    • DIF
    • Differentiation inducing factor
    • Macrophage cytotoxic factor
    • Tnf
    • TNF superfamily member 2
    • TNF superfamily, member 2
    • TNF, macrophage derived
    • TNF, monocyte derived
    • TNF-a
    • TNF-alpha
    • TNFA
    • TNFA_HUMAN
    • TNFSF2
    • Tumor necrosis factor
    • Tumor necrosis factor (TNF superfamily member 2)
    • Tumor necrosis factor alpha
    • Tumor necrosis factor ligand superfamily member 2
    • Tumor Necrosis Factor, Membrane Form
    • Tumor necrosis factor, soluble form
    see all

  • Database links

    Images

    • Typical Standard Curve
      Typical Standard Curve

      Representative Standard Curve using ab108908.

    Please note: All products are "FOR RESEARCH USE ONLY. NOT FOR USE IN DIAGNOSTIC PROCEDURES"
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