ELISA/assay

肿瘤坏死因子α(肿瘤坏死因子-a)

MBS590025

96 Wells

580美元

酶联免疫吸附试剂盒

肿瘤坏死因子α(肿瘤坏死因子-a)

肿瘤坏死因子α

肿瘤坏死因子α(肿瘤坏死因子甲);肿瘤坏死因子α(肿瘤坏死因子-a)

TNF-alpha; Tumor necrosis factor; tumor necrosis factor; APC1 protein; TNF, macrophage-derived; TNF, monocyte-derived; TNF-a; cachectin; tumor necrosis factor ligand superfamily member 2; tumor necrosis factor-alpha; tumor necrosis factor; Cachectin; TNF-alpha; Tumor necrosis factor ligand superfamily member 2; TNF-a

肿瘤坏死因子-a

肿瘤坏死因子;肿瘤坏死因子;DIF;TNFA;TNFSF2;肿瘤坏死因子甲

TNFA_HUMAN

233

This sandwich ELISA recognises both natural and recombinant human TNF-?. This kit exhibits no significant cross-reactivity with human TGF, MCP-1, MCP-3, M-CSF, GM-CSF, EGF, IL-1?, IL-8, and IL-16.

Samples: Cell Culture Supernatant, serum, plasma, and other biological fluids. Assay Type: Sandwich. Sensitivity: The minimum detectable dose of TNF-? using a standard curve generated with Calibrator Diluent I or Calibrator Diluent II is 2.4pg/mL.

Intra-assay Precision: To determine within-run precision, three different samples of known concentration were assayed by replicates of twenty in 1 assay. Inter-assay Precision: To determine between-run precision, three different samples of known concentration were assayed by replicates on 20 different assays. Intended Uses: This Human TNF-alpha (alpha) ELISA Kit is to be used for the in vitro quantitative determination of human tumour necrosis factor alpha (TNF-alpha) concentrations in cell culture supernatant, serum, plasma, and other biological fluids. This kit is intended FOR LABORATORY RESEARCH USE ONLY and not for use in diagnostic or therapeutic procedures.

ELISA Kits for Human Cytokines and Receptors

Principle of the assay: This TNF-alpha enzyme linked immunosorbent assay (ELISA) applies a technique called a quantitative sandwich immunoassay. The microtiter plate provided in this kit has been pre-coated with a monoclonal antibody specific to TNF-alpha. Standards or samples are then added to the appropriate microtiter plate wells with a biotin-conjugated monoclonal antibody preparation specific for TNF-alpha and incubated. TNF-alpha, if present, will bind and become immobilized by the antibody pre-coated on the wells and then be "sandwiched" by biotin conjugate. The microtiter plate wells are thoroughly washed to remove unbound TNF-alpha and other components of the sample. In order to quantify the amount of TNF-alpha present in the sample, Avidin conjugated to Horseradish Peroxidase (HRP) is added to each microplate well and incubated. Avidin is a tetramer containing four identical subunits that each has a high affinity-binding site for biotin. The wells are thoroughly washed to remove all unbound HRP-conjugated Avidin and a TMB (3,3'5,5' tetramethyl-benzidine) substrate solution is added to each well. The enzyme (HRP) and substrate are allowed to react over a short incubation period. Only those wells that contain TNF-alpha, biotin-conjugated antibody, and enzyme-conjugated Avidin will exhibit a change in colour. The enzyme-substrate reaction is terminated by the addition of a sulphuric acid solution and the colour change is measured spectrophotometrically at a wavelength of 450 nm +/- 2 nm. In order to measure the concentration of TNF-alpha in the samples, this kit includes two calibration diluents (Calibrator Diluent I for serum/plasma testing and Calibrator Diluent II for cell culture supernatant testing.) According to the testing system, the provided standard is diluted (2-fold) with the appropriate Calibrator Diluent and assayed at the same time as the samples. This allows the operator to produce a standard curve of Optical Density (O.D) versus TNF-alpha concentration (pg/mL). The concentration of TNF-alpha in the samples is then determined by comparing the O.D. of the samples to the standard curve.

37210

CAA26669.1

P01375

25,644 Da

Adipocytokine Signaling Pathway (83093); Adipocytokine Signaling Pathway (505); Adipogenesis Pathway (198832); African Trypanosomiasis Pathway (194384); African Trypanosomiasis Pathway (194323); AhR Pathway (755436); Allograft Rejection Pathway (920963); Allograft Rejection Pathway (83123); Allograft Rejection Pathway (535); Alzheimer's Disease Pathway (83097)

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]

TNF-a: 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. Homotrimer. Interacts with SPPL2B. Belongs to the tumor necrosis factor family. Protein type: Motility/polarity/chemotaxis; Cytokine; Apoptosis; Membrane protein, integral. Chromosomal Location of Human Ortholog: 6p21.3. Cellular Component: extracellular space; recycling endosome; cell surface; integral to plasma membrane; extracellular region; plasma membrane; external side of plasma membrane; phagocytic cup; lipid raft. Molecular Function: identical protein binding; protein binding; protease binding; cytokine activity; tumor necrosis factor receptor binding. Biological Process: positive regulation of JNK activity; extracellular matrix organization and biogenesis; positive regulation of nitric oxide biosynthetic process; positive regulation of NFAT protein import into nucleus; activation of MAPK activity; positive regulation of osteoclast differentiation; positive regulation of apoptosis; positive regulation of transcription, DNA-dependent; response to glucocorticoid stimulus; positive regulation of caspase activity; positive regulation of NF-kappaB import into nucleus; osteoclast differentiation; positive regulation of translational initiation by iron; positive regulation of membrane protein ectodomain proteolysis; activation of NF-kappaB transcription factor; positive regulation of MAP kinase activity; tumor necrosis factor-mediated signaling pathway; positive regulation of phagocytosis; negative regulation of interleukin-6 production; JNK cascade; negative regulation of osteoblast differentiation; positive regulation of action potential; embryonic gut development; regulation of immunoglobulin secretion; negative regulation of protein complex disassembly; response to drug; positive regulation of cytokine production; positive regulation of heterotypic cell-cell adhesion; positive regulation of I-kappaB kinase/NF-kappaB cascade; positive regulation of mitosis; response to virus; positive regulation of interleukin-6 production; positive regulation of interleukin-8 biosynthetic process; glucose metabolic process; negative regulation of fat cell differentiation; positive regulation of chemokine production; negative regulation of cytokine secretion during immune response; positive regulation of protein transport; detection of mechanical stimulus involved in sensory perception of pain; cell activation; defense response to Gram-positive bacterium; DNA damage response, signal transduction resulting in induction of apoptosis; induction of apoptosis via death domain receptors; positive regulation of transcription from RNA polymerase II promoter; positive regulation of transcription factor activity; negative regulation of L-glutamate transport; response to activity; negative regulation of transcription, DNA-dependent; skeletal muscle contraction; sequestering of triacylglycerol; positive regulation of smooth muscle cell proliferation; negative regulation of transcription from RNA polymerase II promoter; positive regulation of interleukin-18 production; chronic inflammatory response to antigenic stimulus; positive regulation of synaptic transmission; response to salt stress; positive regulation of hair follicle development; negative regulation of cell proliferation; response to radiation; negative regulation of lipid catabolic process; positive regulation of neuron apoptosis; lipopolysaccharide-mediated signaling pathway; protein kinase B signaling cascade; positive regulation of chronic inflammatory response to antigenic stimulus; inflammatory response; regulation of I-kappaB kinase/NF-kappaB cascade; caspase activation; positive regulation of humoral immune response mediated by circulating immunoglobulin; positive regulation of protein complex disassembly; transformed cell apoptosis; MAPKKK cascade; calcium-mediated signaling; positive regulation of peptidyl-serine phosphorylation; humoral immune response; positive regulation of protein kinase B signaling cascade; positive regulation of interferon-gamma production; negative regulation of glucose import; positive regulation of programmed cell death; positive regulation of chemokine biosynthetic process; positive regulation of protein complex assembly; negative regulation of viral genome replication; protein import into nucleus, translocation; positive regulation of protein kinase activity; response to hypoxia; activation of MAPKKK activity; positive regulation of fever; receptor biosynthetic process; positive regulation of protein amino acid phosphorylation; negative regulation of myoblast differentiation; leukocyte tethering or rolling; regulation of insulin secretion; positive regulation of cytokine secretion. Disease: Asthma, Susceptibility To; Migraine With Or Without Aura, Susceptibility To, 1; Malaria, Susceptibility To

96 Wells

580美元