ProSpec-TNF a Human, His/CYT-494,Tumor Necrosis Factor-Alpha Human Recombinant, His Tag

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

Tumor necrosis factor is a cytokine involved in systemic inflammation and is a member of a group of cytokines that all stimulate the acute phase reaction. TNF is mainly secreted by macrophages.
TNF causes apoptotic cell death, cellular proliferation, differentiation, inflammation, tumorigenesis and viral replication, TNF is also involved in lipid metabolism, and coagulation. TNF’s primary role is in the regulation of immune cells.
Dysregulation and, in particular, overproduction of TNF have been implicated in a variety of human diseases- autoimmune diseases, insulin resistance, and cancer.

肿瘤坏死因子是一种参与全身炎症的细胞因子，是所有刺激急性期反应的一组细胞因子中的一员。 TNF主要由巨噬细胞分泌。
TNF导致凋亡细胞死亡、细胞增殖、分化、炎症、肿瘤发生和病毒复制，TNF还参与脂质代谢和凝血。 TNF的主要作用是调节免疫细胞。
失调，特别是 TNF 的过度产生与多种人类疾病有关——自身免疫疾病、胰岛素抵抗和癌症。

Tumor Necrosis Factor-α Human Recombinant His produced in E.Coli is a single, non-glycosylated, polypeptide chain containing 164 amino acids fragment and having a molecular mass of 18.3kDa with an N-terminal hexahistidine tag. The TNF-alpha His is purified by standard chromatographic techniques.

Tumor Necrosis Factor-α Human Recombinant His 在大肠杆菌中产生，是一种单一的、非糖基化的多肽链，包含 164 个氨基酸片段，分子量为 18.3kDa，带有 N 端六组氨酸标签。 TNF-α His 通过标准色谱技术纯化。

Escherichia Coli.

Sterile Filtered White lyophilized powder.

Lyophilized from a 0.2 μm filtered concentrated solution in PBS, pH 7.0.

It is recommended to reconstitute the lyophilized TNF-α in sterile 18MΩ-cm H₂O not less than 100µg/ml, which can then be further diluted to other aqueous solutions.

建议在不低于 100µg/ml 的无菌 18MΩ-cm H2O 中复溶冻干的 TNF-α，然后可以进一步稀释成其他水溶液。

Lyophilized TNF-α although stable at room temperature for 3 weeks, should be stored desiccated below -18°C. Upon reconstitution TNF-α should be stored at 4°C between 2-7 days and for future use below -18°C.For long term storage it is recommended to add a carrier protein .

Please prevent freeze-thaw cycles.

Greater than 97.0% as determined by -PAGE and HPLC analyses.

MHHHHHHVRS SSRTPSDKPV AHVVANPQAE GQLQWLNRRA NALLANGVEL RDNQLVVPSE GLYLIYSQVL FKGQGCPSTH VLLTHTISRI AVSYQTKVNL LSAIKSPCQR ETPEGAEAKP WYEPIYLGGV FQLEKGDRLS AEINRPDYLD FAESGQVYFG IIAL.

The ED50 was determined in the presence of actinomycin D by a cytotoxicity assay using murine L929 cells is <0.05 ng/ml, corresponding to a specific activity of > 2.0 × 107IU/mg.

Prospec’s products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.