Tumor Necrosis Factor Receptor Human Recombinant, TNFR Human, 50ug

Biological Activity
Potency is determined by its ability to neutralize TNF-alpha mediated growth inhibition of A375 cells, corresponding to a Specific Activity of 17,000,000 IU/mg.

Description
Tumor Necrosis Factor Receptor Human Recombinant produced in CHO is a dimeric, glycosylated, polypeptide chain consisting of the extracellular ligand-binding portion of the human 75 kilodalton (p75) tumor necrosis factor receptor (TNFR) linked to the Fc portion of human IgG1. The Fc component of TNFR contains the CH2 domain, the CH3 domain and hinge region, but not the CH1 domain of IgG1. It consists of 934 amino acids and has an apparent molecular weight of approximately 150 kilodaltons.
The TNFR is purified by standard chromatographic techniques.

Formulation
Each mg contains 1.6mg mannitol, 0.4 mg sucrose and 48 ug tromethamine.

Physical Appearance
Sterile Filtered White lyophilized (freeze-dried) powder.

Purity
Greater than 98.0% as determined by(a) Analysis by RP-HPLC.
(c) Analysis by SDS-PAGE.

Solubility
It is recommended to reconstitute the lyophilized TNFR in sterile 18M¦¸-cm H2O not less than 100ug/ml, which can then be further diluted to other aqueous solutions.

Source
Chinese Hamster Ovarian Cells (CHO).

Stability
Lyophilized Tumor Necrosis Factor Receptor although stable at room temperature for 3 weeks, should be stored desiccated below -18¡ãC. Upon reconstitution TNFR should be stored at 4¡ãC between 2-7 days and for future use below -18¡ãC.
For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA).
Please prevent freeze-thaw cycles.

Synonyms
Tumor necrosis factor receptor superfamily member 1B,Tumor necrosis factor receptor 2, TNF-R2, Tumor necrosis factor receptor type II, p75, p80 TNF-alpha receptor, CD120b antigen, Etanercept, TBPII, TNFBR, TNFR80, TNF-R75, p75TNFR, TNF-R-II.

Usage
TSZGENE'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.