catalog number :
MBS203087
products type :
Recombinant Protein
products full name :
TNF-alpha, 77-233 aa Human, Recombinant, E Coli
products short name :
Tumor Necrosis Factor-alpha
products name syn :
TNFA; TNFSF2; DIF (differentiation inducing factor); CACHECTIN; DIF; TNF-alpha; Tumor necrosis factor alpha; Tumor necrosis factor alpha; TNF; tumor necrosis factor (TNF superfamily; member 2); TNF superfamily member 2
other names :
tumor necrosis factor; 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
other gene names :
TNF; TNF; DIF; TNFA; TNFSF2; TNF-alpha; TNFA; TNFSF2; TNF-a; NTF; ICD1; ICD2
uniprot entry name :
TNFA_HUMAN
sequence :
MVRSSSRTPS DKPVAHVVAN PQAEGQLQWL NRRANALLAN GVELRDNQLV VPSEGLYLIY SQVLFKGQGC PSTHVLLTHT ISRIAVSYQT KVNLLSAIKS PCQRETPEGA EAKPWYEPIY LGGVFQLEKG DRLSAEINRP DYLDFAESGQ VYFGIIAL
purity :
> 95% by SDS - PAGE
form :
Liquid. In PBS, pH 7.4
concentration :
1 mg/ml (determined by Bradford assay)
storage stability :
Can be stored at 4 degree C short term (1-2 weeks). For long term storage, aliquot and store at -20 degree C or -70 degree C. Avoid repeated freezing and thawing cycles.
tested application :
SDS-PAGE
other info1 :
Antigen Species: Human
other info2 :
Expression System: E Coli. Bioactivity: Measured in a cytotoxicity assay using L929 mouse fibrosarcoma cells in the presence of the metabolic inhibitor actinomycin D. The ED50 for this effect is < =0.2 ng/ml. Endotoxin: < 1.0 Eu per ug of protein (determined by LAL method). Assay: L929 cytotoxicity assay using actinomycin D . Cell Number: 2 x 10,000 cells/well . Incubation: 24hr after sample treatment . Assay Media: 5% FBS media . Cytokine Concentration: 12 pg/ml - 25 ng/ml . Detection method: MTT assay
products categories :
Hormones & Cytokines
products description :
Tumor necrosis factor alpha (TNF-alpha), also called cachectin, consists of 157 amino acids. TNF-alpha is a 17.5 kD factor produced by neutrophils, CD4+ T cells, macrophage, NK cells, LAK cells, astrocytes endothelial cells, and smooth muscle cells. TNF-alpha is cytolytic and plays an important role in immune regulation including hemorrhagic tumor necrosis/cytotoxicity and inflammation, and in regulation of antiviral and immune proliferative and activation responses. The active form of this protein is a trimer. Recombinant human TNF-alpha was expressed in E. coli and purified by using conventional chromatography techniques. Additional amino acid, methionine, was attached at N-terminus of the protein.
products references :
Chicoine M.R., et al. (1997), J. Neurooncol. 35: 249-57. Ruddle N.H., et al. (1992), Curr. Opin. Immunol. 4: 327-32. Wingfield P., et al. (1987), FEBS Lett. 211:179-184.
ncbi gb acc num :
NM_000594.3
ncbi mol weight :
17.5 kDa (158 aa), confirmed by MALDI-TOF.
ncbi pathways :
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)
ncbi summary :
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 summary :
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: Apoptosis; Membrane protein, integral; Cytokine; Motility/polarity/chemotaxis. Chromosomal Location of Human Ortholog: 6p21.3. Cellular Component: extracellular space; recycling endosome; cell surface; integral to plasma membrane; extracellular region; plasma membrane; phagocytic cup; external side of plasma membrane; 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; positive regulation of osteoclast differentiation; activation of MAPK activity; 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; regulation of immunoglobulin secretion; embryonic gut development; negative regulation of protein complex disassembly; positive regulation of cytokine production; response to drug; positive regulation of heterotypic cell-cell adhesion; positive regulation of I-kappaB kinase/NF-kappaB cascade; positive regulation of mitosis; response to virus; glucose metabolic process; positive regulation of interleukin-8 biosynthetic process; positive regulation of interleukin-6 production; negative regulation of fat cell differentiation; positive regulation of chemokine production; negative regulation of cytokine secretion during immune response; positive regulation of protein transport; cell activation; detection of mechanical stimulus involved in sensory perception of pain; defense response to Gram-positive bacterium; induction of apoptosis via death domain receptors; DNA damage response, signal transduction resulting in induction of apoptosis; positive regulation of transcription from RNA polymerase II promoter; positive regulation of transcription factor activity; response to activity; negative regulation of L-glutamate transport; 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; response to salt stress; positive regulation of synaptic transmission; 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; protein kinase B signaling cascade; lipopolysaccharide-mediated signaling pathway; 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; calcium-mediated signaling; MAPKKK cascade; positive regulation of peptidyl-serine phosphorylation; humoral immune response; positive regulation of protein kinase B signaling cascade; negative regulation of glucose import; positive regulation of programmed cell death; positive regulation of interferon-gamma production; 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; activation of MAPKKK activity; response to hypoxia; positive regulation of fever; receptor biosynthetic process; positive regulation of protein amino acid phosphorylation; leukocyte tethering or rolling; negative regulation of myoblast differentiation; regulation of insulin secretion; positive regulation of cytokine secretion. Disease: Asthma, Susceptibility To; Migraine With Or Without Aura, Susceptibility To, 1; Malaria, Susceptibility To