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Key Documents

T7539

Sigma-Aldrich

Tumor Necrosis Factor-α from mouse

≥95%, recombinant, expressed in E. coli, powder, suitable for cell culture

Synonyme(s) :

mTNF-α, TNF-α

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About This Item

Numéro MDL:
Code UNSPSC :
12352202
Nomenclature NACRES :
NA.77

product name

Tumor Necrosis Factor-α from mouse, TNF-α, recombinant, expressed in E. coli, powder, suitable for cell culture

Source biologique

mouse

Niveau de qualité

Produit recombinant

expressed in E. coli

Pureté

≥95%

Forme

powder

Puissance

0.01-0.5 ng/mL EC50

Poids mol.

17 kDa

Conditionnement

pkg of 10 μg
pkg of 50 μg

Conditions de stockage

avoid repeated freeze/thaw cycles

Technique(s)

cell culture | mammalian: suitable

Impuretés

≤1 EU/μg protein endotoxin

Couleur

white

Solubilité

water: soluble

Numéro d'accès UniProt

Température de stockage

−20°C

Informations sur le gène

mouse ... Tnf(21926)

Application

Tumor Necrosis Factor-α from mouse, a potent proinflammatory cytokine has been used:
  • to activate MS1 endothelium cells
  • to induce lipolysis in adipocytes
  • to study its effect on liganded and unliganded glucocorticoid receptor (GR) in interleukin (IL)-6 and IL-8 gene regulation

Actions biochimiques/physiologiques

Tumor necrosis factor-α (TNF-α), also known as cachectin, is expressed as a 26 kDa membrane bound protein and is then cleaved by TNF-α converting enzyme (TACE) to release the soluble 17 kDa monomer, which forms homotrimers in circulation. TNF-α plays roles in antitumor activity, immune modulation, inflammation, anorexia, cachexia, septic shock, viral replication and hematopoiesis. TNF-α is expressed by a great variety of cells, with numerous inductive and suppressive agents. Primarily, TNF-α is produced by macrophages in response to immunological challenges such as bacteria (lipopolysaccharides), viruses, parasites, mitogens and other cytokines. TNF-α is cytotoxic for many transformed cells (its namesake activity) but in normal diploid cells, it can stimulate proliferation (fibroblasts), differentiation (myeloid cells) or activation (neutrophils). TNF-α also shows antiviral effects against both DNA and RNA viruses and it induces production of several other cytokines. Although TNF-α is used in clinical trials as an antitumor agent, Sigma′s cytokine, growth factor and hormone products are for research only. TNF-α and the related molecule TNF-β (LT-α) share close structural homology with 28% amino acid sequence identity and both activate the same TNF receptors, TNFR1 and TNFR2. Mouse and human TNF-α share 79% amino acid sequence identity. Unlike human TNF-α, the mouse form is glycosylated.

Définition de l'unité

One unit is the amount required to induce half-maximal cytolysis of L929 cells.

Forme physique

Lyophilized from 10 mM sodium phosphate, pH 7.5

Pictogrammes

Exclamation mark

Mention d'avertissement

Warning

Mentions de danger

Classification des risques

Eye Irrit. 2 - Skin Irrit. 2

Code de la classe de stockage

11 - Combustible Solids

Classe de danger pour l'eau (WGK)

WGK 3

Point d'éclair (°F)

Not applicable

Point d'éclair (°C)

Not applicable

Équipement de protection individuelle

Eyeshields, Gloves, type N95 (US)


Certificats d'analyse (COA)

Recherchez un Certificats d'analyse (COA) en saisissant le numéro de lot du produit. Les numéros de lot figurent sur l'étiquette du produit après les mots "Lot" ou "Batch".

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Consulter la Bibliothèque de documents

SDF-1--CXCR4 differentially regulates autoimmune diabetogenic T cell adhesion through ROBO1--SLIT2 interactions in mice
Glawe JD, et al.
Diabetologia, 56(10), 2222-2230 (2013)
Relative contribution of adipose triglyceride lipase and hormone-sensitive lipase to tumor necrosis factor-$\alpha$ (TNF-$\alpha$)-induced lipolysis in adipocytes
Yang X, et al.
The Journal of Biological Chemistry, 286(47), 40477-40485 (2011)
Glucocorticoid-independent repression of tumor necrosis factor (TNF) $\alpha$-stimulated interleukin (IL)-6 expression by the glucocorticoid receptor a potential mechanism for protection against an excessive inflammatory response
Verhoog NJD, et al.
The Journal of Biological Chemistry, 286(22), 19297-19310 (2011)
Fen Li et al.
Zhong nan da xue xue bao. Yi xue ban = Journal of Central South University. Medical sciences, 40(9), 945-954 (2015-09-27)
To investigate the association of TNF-α-308 gene polymorphism with the risk of RA in Hunan's Han Chinese population. A total of 112 patients with RA from Han Chinese population in Hunan were recruited, along with 129 healthy controls. TNF-α-308 (rs1800629)
Fabrícia Lima Fontes et al.
BMC medical genetics, 16, 70-70 (2015-09-01)
Bacterial meningitis (BM) is an infectious disease that results in high mortality and morbidity. Despite efficacious antibiotic therapy, neurological sequelae are often observed in patients after disease. Currently, the main challenge in BM treatment is to develop adjuvant therapies that

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