TNF-α, His, Human

Tumor Necrosis Factor-Alpha (TNF-alpha) plays a major role in growth regulation, differentiation, inflammation, viral replication, tumorigenesis, and autoimmune diseases. Besides inducing hemorrhagic necrosis of tumors, TNF has been found to be involved in tumorigenesis, tumor metastasis, viral replication, septic shock, fever, inflammation, and autoimmune diseases including Crohn's disease, and rheumatoid arthritis as well as graft-versus-host disease. TNF alpha-1a is a potent lymphoid factor that exerts cytotoxic effects on a wide range of tumor cells and certain other target cells.

價格	￥400
產(chǎn)品編號	Z02685-10
規(guī)格	10 μg 50 μg 1 mg 大單詢價
數(shù)量

產(chǎn)品簡介圖例技術(shù)背景

產(chǎn)品簡介

Species

Human

Protein Construction

Expressed with an N-terminal Met.

Poly-His	TNF-α (Val77-Leu233) Accession # P01375
N-term	C-term

Purity

> 95% as analyzed by SDS-PAGE

Endotoxin Level

< 1 EU/μg of protein by gel clotting method

Biological Activity

ED₅₀ < 0.13 ng/ml, measured in a cytotoxicity assay using L-929 mouse fibrosarcoma cells in the presence of the metabolic inhibitor actinomycin D, corresponding to a specific activity of > 7.69 × 10⁶ units/mg.

Expression System

E. coli

Apparent Molecular Weight

~18.3 kDa, on SDS-PAGE under reducing conditions.

Formulation

Lyophilized after extensive dialysis against PBS.

Reconstitution

It is recommended that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Reconstitute the lyophilized powder in ddH?O up to 100 μg/ml.

Storage & Stability

Upon receiving, this product remains stable for up to 6 months at lower than -70°C. Upon reconstitution, the product should be stable for up to 1 week at 4°C or up to 3 months at -20°C. For long term storage it is recommended that a carrier protein (example 0.1% BSA) be added. Avoid repeated freeze-thaw cycles.

圖例

ED??<0.13ng/ml, measured in a cytotoxicity assay using L-929 mouse fibrosarcoma cells in the presence of the metabolic inhibitor actinomycin D, corresponding to a specific activity of >7.69 x 10?units/mg. ?

Good lot to lot consistancy ?

技術(shù)背景

Target Background

Synonyms

TNF-alpha; Tumor necrosis factor ligand superfamily member 2; TNF-a; Cachectin; DIF; TNFA; TNFSF2

For laboratory research use only. Direct human use, including taking orally and injection and clinical use are forbidden.

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TNF-α, His, Human

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