RecombinantTNF-α, Rat

Tumor Necrosis Factor-Alpha (TNF-Alpha) also known as Cachectin and TNFSF1A, plays a major role in growth regulation, differentiation, inflammation, viral replication, tumorigenesis, and autoimmune diseases; and in viral, bacterial, fungal, and parasitic infections. 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.Recombinant rat Tumor Necrosis Factor-Alpha (rrTNF-Alpha) produced in P. pastoris is a glycosylated polypeptide chain containing 157 amino acids. A fully biologically active molecule, rrTNF-Alpha has a molecular mass of 17.4kDa analyzed by reducing SDS-PAGE and is obtained by proprietary chromatographic techniques at GenScript.

Product Specifications

CAS Number

9000-83-3

Endotoxin

< 0.2 EU/μg, determined by LAL method.

Purity

> 95% by SDS-PAGE and HPLC analyses.

Bioactivity

ED50 < 50 pg/ml, measured in a cytotoxicity assay using mouse L-929 cells in the presence of actinomycin D, corresponding to a specific activity of > 2.0x 10ˆ7 units/mg.

Reconstitution

Reconstituted in ddH2O at 100 μg/ml.

Molecular Weight

17.4kDa, observed by reducing SDS-PAGE.

Storage Conditions

Lyophilized recombinant rat Tumor Necrosis Factor-Alpha (rrTNF-Alpha) remains stable up to 6 months at -80°C from date of receipt. Upon reconstitution, rrTNF-Alpha should be stable up to 2 weeks at 4°C or up to 3 months at -20°C.

Appearance

Sterile Filtered White lyophilized (freeze-dried) powder.

Formulation

Lyophilized after extensive dialysis against PBS.

Host or Source

P. pastoris

Recommended Usage

This material is offered by USA Bioworld biotech for research, laboratory or further evaluation purposes. For research use only.

AA Sequence

MLRSSS QNSSDKPVAH VVANHQAEEQ LEWLSQRANA LLANGMDLKD NQLVVPADGL YLIYSQVLFK GQGCPDYVLL THTVSRFAIS YQEKVSLLSA IKSPCPKDTP EGAELKPWYE PMYLGGVFQL EKGDLLSAEV NLPKYLDITE SGQVYFGVIA L