Recombinant Rat TNF-alpha Protein

重组大鼠TNF α蛋白 | 重组大鼠 TNF-alpha 蛋白

APC1 protein | Cachectin | Cachetin | RATTNF | DIF | TNF | TNF, monocyte-derived | TNFA | TNF-A | TNFalpha | TNF-alpha | TNF-alphacachectin | TNFATNF, macrophage-derived | TNFG1F | TNFSF1A | TNFSF2 | TNFSF2TNF superfamily, member 2 | tumor necrosis factor

rp155241-50μg

50μg

无动物源

≥95%(SDS-PAGE)

＞95% (SDS-PAGE)

Background： Tumor necrosis factor alpha (TNF-alpha ), also known as cachectin and TNFSF2, is the prototypic ligand of the TNF superfamily. It is a pleiotropic molecule that plays a central role in inflammation, immune system development, apoptosis, and lipid metabolism. Rat TNF-alpha consisits of a 35 amino acid (aa) cytoplasmic domain, a 21 aa transmembrane segment, and a 179 aa extracellular domain (ECD). Within the ECD, rat TNF-alpha shares 94% aa sequence identity with mouse and 69%-76% with bovine, canine, cotton rat, equine, feline, human, porcine, and rhesus TNF-alpha. TNF-alpha is produced by a wide variety of immune, epithelial, endothelial, and tumor cells. TNF-alpha is assembled intracellularly to form a noncovalently linked homotrimer which is expressed on the cell surface. Cell surface TNF-alpha can induce the lysis of neighboring tumor cells and virus infected cells, and it can generate its own downstream cell signaling following ligation by soluble TNFR I. Shedding of membrane bound TNF-alpha by TACE/ADAM17 releases the bioactive cytokine, a 55 kDa soluble trimer of the TNF-alpha extracellular domain. TNF-alpha binds the ubiquitous 55-60 kDa TNF RI and the hematopoietic cell-restricted 80 kDa TNF RII, both of which are also expressed as homotrimers. Both type I and type II receptors bind TNF-alpha with comparable affinity, although only TNF RI contains a cytoplasmic death domain which triggers the activation of apoptosis. Soluble forms of both types of receptors are released and can neutralize the biological activity of TNF-alpha . Post-translational modifications The soluble form derives from the membrane form by proteolytic processing. The membrane form, but not the soluble form, is phosphorylated on serine residues. Dephosphorylation of the membrane form occurs by binding to soluble TNFRSF1A/TNFR1. O-glycosylated; glycans contain galactose, N-acetylgalactosamine and N-acetylneuraminic acid.

Measured in a cytotoxicity assay using L‑929 mouse fibroblast cells in the presence of the metabolic inhibitor actinomycin D (Catalog # A113142). The EC50 for this effect is typically <5 pg/mL.

重组表达

18 kDa

C-His

15 kDa, under reducing conditions; 15 kDa, under non-reducing conditions.

Full length protein

Unconjugated

HEK293 Accession #: P16599 | HEK293

<0.1 EU/μg

大鼠(Rat)

80-235 aa

MLRSSSQNSSDKPVAHVVANHQAEEQLEWLSQRANALLANGMDLKDNQLVVPADGLYLIYSQVLFKGQGCPDYVLLTHTVSRFAISYQEKVSLLSAIKSPCPKDTPEGAELKPWYEPMYLGGVFQLEKGDLLSAEVNLPKYLDITESGQVYFGVIALHHHHHH

Yes

Met