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You are here:Home » Growth Factors, Cytokines » Growth Factors-TNF » Tumor Necrosis Factor beta, Recombinant, Human (TNFb)

Tumor Necrosis Factor beta, Recombinant, Human (TNFb)

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Specifications

Tumor necrosis factor beta (TNFbeta) is a lymphoid factor which exerts cytotoxic effects on a wide range of tumor cells.
Catalog #T9160-41B
SourceRecombinant corresponding to human TNF beta, expressed in E. coli.
Molecular Weight~18.6kD (172aa sequence)
Activity~2x107units/mg
Endotoxin 0.1ng/ug of TNF-beta ( 1EU/ug)
ApplicationsSuitable for use in Cytotoxicity Assays. Other applications not tested.
Recommended DilutionCytotoxic Assays: 0.05-10ng/ml
Optimal dilutions to be determined by the researcher.
Storage and StabilityLyophilized powder may be stored at -20°C. Stable for 12 months at -20°C. Reconstitute with 20ul sterile dH2O. Aliquot and store at -20°C. Reconstituted product is stable for 6 months at -20°C. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap. Further dilutions can be made in assay buffer.
Molecular Weight~18kD
SourceE. coli
PurityPurified: ~98% (SDS PAGE, HPLC).
FormSupplied as a lyophilized powder from PBS. No preservative added. Reconstitute with 20ul sterile dH2O.
Important NoteThis product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications without the expressed written authorization of United States Biological.


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