Tumor Necrosis Factor-alpha Human Recombinant, HEK ( TNF a Human, HEK )

Data sheet

Formulation

The TNF-a protein was lyophilized from 1mg/ml in 1xPBS.

Solubility

It is recommended to reconstitute the lyophilized TNF-a in sterile water not less than 100ug/ml, which can then be further diluted to other aqueous solutions.

Purity

Greater than 95% as obsereved by SDS-PAGE.

Description

TNF-a Human Recombinant produced in HEK cells is a glycosylated non-disulfide linked homotrimer, containing 157 and having total Mw of 17kDa.The TNF-a is purified by proprietary chromatographic techniques.

Protein Background

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, diff

Expression host

HEK.

Synonyms

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

Stability

Lyophilized TNF-a although stable at room temperature for 3 weeks, should be stored desiccated below -18°C. Upon reconstitution TNF-a 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

Amino acid sequence

VRSSSRTPSDKPVAHVVANPQAEGQLQWLNRRANALLANGVELRDNQLVVPSEGLYLIYSQVLFKGQGCPSTHVLLTHTISRIAVSYQTKVNLLSAIKSPCQRETPEGAEAKPWYEPIYLGGVFQLEKGDRLSAEINRPDYLDFAESGQVYFGIIAL.

Physical Appearence

Sterile Filtered White lyophilized (freeze-dried) powder.

Biological Activity

The specific activity was determined by the dose-dependent cytotoxity of the TNF alpha sensitive cell line L-929 in the presence of Actinomycin D and is typically 0.05-0.5ng/ml.