Human Tumor Necrosis Factor Alpha (TNFa) ELISA Kit | TNFa elisa kit

Human Tumor Necrosis Factor Alpha (TNFa) ELISA Kit

Cat. Num. AAA455676

• Gene Names: TNF; DIF; TNFA; TNFSF2; TNLG1F; TNF-alpha
• Reactivity: Human
• Synonyms: Tumor Necrosis Factor Alpha (TNFa); Human Tumor Necrosis Factor Alpha (TNFa) ELISA Kit; DIF; TNF-A; TNFSF2; Cachectin; Tumor Necrosis Factor Ligand Superfamily Member 2; TNFa elisa kit

• Reactivity: Human
• Specificity: This assay has high sensitivity and excellent specificity for detection of TNFa. No significant cross-reactivity or interference between TNFa and analogues was observed.
• Sequence Length: 233

• Samples: Serum, plasma, tissue homogenates, cell lysates, cell culture supernates or other biological fluids
• Assay Type: Quantitative Sandwich
• Detection Range: 15.6-1000pg/mL
• Sensitivity: < 6.62pg/mL
• Intra-assay Precision: Intra-assay Precision (Precision within an assay): 3 samples with low, middle and high level TNFa were tested 20 times on one plate, respectively. Intra-Assay: CV<10%
• Inter-assay Precision: Inter-assay Precision (Precision between assays): 3 samples with low, middle and high level TNFa were tested on 3 different plates, 8 replicates in each plate. CV(%) = SD/meanX100. Inter-Assay: CV<12%
• Preparation and Storage: For unopened kit, all reagents should be kept according to the labels on vials. The TMB Substrate, Wash Buffer, Stop Solution should be stored at 4 degree C. All others should be stored at -20 degree C.

Typical Testing Data/Standard Curve (for reference only)

Related Product Information for TNFa elisa kit

Intended Uses: The kit is a sandwich enzyme immunoassay for the in vitro quantitative measurement of TNFa in human serum, plasma, tissue homogenates, cell lysates, cell culture supernates or other biological fluids.

Principle of the Assay: The microtiter plate provided in this kit has been pre-coated with an antibody specific to TNFa. Standards or samples are then added to the appropriate microtiter plate wells with a biotin-conjugated antibody preparation specific to TNFa. Next, Avidin conjugated to Horseradish Peroxidase (HRP) is added to each microplate well and incubated. After TMB substrate solution is added, only those wells that contain TNFa, biotin-conjugated antibody and enzyme-conjugated Avidin will exhibit a change in color. The enzyme-substrate reaction is terminated by the addition of sulphuric acid solution and the color change is measured spectrophotometrically at a wavelength of 450nm +/- 10nm. The concentration of TNFa in the samples is then determined by comparing the O.D. of the samples to the standard curve.

NCBI and Uniprot Product Information

• NCBI GI #: 25952111
• NCBI GeneID: 7124
• NCBI Accession #: NP_000585.2
• NCBI GenBank Nucleotide #: NM_000594.3
• UniProt Accession #: P01375; O43647; Q9P1Q2; Q9UIV3
• Molecular Weight: 25,644 Da
• NCBI Official Full Name: tumor necrosis factor
• NCBI Official Synonym Full Names: tumor necrosis factor
• NCBI Official Symbol: TNF
• NCBI Official Synonym Symbols: DIF; TNFA; TNFSF2; TNLG1F; TNF-alpha
• NCBI Protein Information: tumor necrosis factor
• UniProt Protein Name: Tumor necrosis factor
• UniProt Gene Name: TNF
• UniProt Synonym Gene Names: TNFA; TNFSF2; TNF-a; NTF; ICD1; ICD2

NCBI Description

This gene encodes a multifunctional proinflammatory cytokine that belongs to the tumor necrosis factor (TNF) superfamily. This cytokine is mainly secreted by macrophages. It can bind to, and thus functions through its receptors TNFRSF1A/TNFR1 and TNFRSF1B/TNFBR. This cytokine is involved in the regulation of a wide spectrum of biological processes including cell proliferation, differentiation, apoptosis, lipid metabolism, and coagulation. This cytokine has been implicated in a variety of diseases, including autoimmune diseases, insulin resistance, and cancer. Knockout studies in mice also suggested the neuroprotective function of this cytokine. [provided by RefSeq, Jul 2008]

Uniprot Description

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. Impairs regulatory T-cells (Treg) function in individuals with rheumatoid arthritis via FOXP3 dephosphorylation. Upregulates the expression of protein phosphatase 1 (PP1), which dephosphorylates the key 'Ser-418' residue of FOXP3, thereby inactivating FOXP3 and rendering Treg cells functionally defective (PubMed:23396208). Key mediator of cell death in the anticancer action of BCG-stimulated neutrophils in combination with DIABLO/SMAC mimetic in the RT4v6 bladder cancer cell line (PubMed:22517918).