T7539
Tumor Necrosis Factor-α from mouse
TNF-α, recombinant, expressed in E. coli, powder, suitable for cell culture
Sinónimos:
mTNF-α, TNF-α
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About This Item
Productos recomendados
origen biológico
mouse
Nivel de calidad
recombinante
expressed in E. coli
Análisis
≥95%
formulario
powder
potencia
0.01-0.5 ng/mL EC50
mol peso
17 kDa
envase
pkg of 10 μg
pkg of 50 μg
condiciones de almacenamiento
avoid repeated freeze/thaw cycles
técnicas
cell culture | mammalian: suitable
impurezas
≤1 EU/μg protein endotoxin
color
white
solubilidad
water: soluble
Nº de acceso UniProt
temp. de almacenamiento
−20°C
Información sobre el gen
mouse ... Tnf(21926)
Aplicación
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
Acciones bioquímicas o fisiológicas
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.
Definición de unidad
One unit is the amount required to induce half-maximal cytolysis of L929 cells.
Forma física
Lyophilized from 10 mM sodium phosphate, pH 7.5
Palabra de señalización
Warning
Frases de peligro
Consejos de prudencia
Clasificaciones de peligro
Eye Irrit. 2 - Skin Irrit. 2
Código de clase de almacenamiento
11 - Combustible Solids
Clase de riesgo para el agua (WGK)
WGK 3
Punto de inflamabilidad (°F)
Not applicable
Punto de inflamabilidad (°C)
Not applicable
Equipo de protección personal
Eyeshields, Gloves, type N95 (US)
Certificados de análisis (COA)
Busque Certificados de análisis (COA) introduciendo el número de lote del producto. Los números de lote se encuentran en la etiqueta del producto después de las palabras «Lot» o «Batch»
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