Abbreviation
Recombinant Human TNF protein, partial (Active)
Purity
>98% as determined by SDS-PAGE.
Endotoxin
Less than 1.0 EU/μg as determined by LAL method.
Activity
Fully biologically active when compared to standard. The ED50 as determined by a cytotoxicity assay using murine L929 cells is less than 0.05 ng/ml, corresponding to a specific activity of >2.0x107 IU/mg in the presence of actinomycin D.
Alternative Names
APC1; APC1 protein; Cachectin; DIF; Differentiation inducing factor; Macrophage cytotoxic factor; Tnf; TNF superfamily member 2; TNF superfamily, member 2; TNF, macrophage derived; TNF, monocyte derived; TNF-a; TNF-alpha; TNFA; TNFA_HUMAN; TNFSF2; Tumor necrosis factor (TNF superfamily member 2); Tumor necrosis factor alpha; Tumor necrosis factor; Tumor necrosis factor ligand superfamily member 2; Tumor Necrosis Factor, Membrane Form; Tumor necrosis factor, soluble form
Species
Homo sapiens (Human)
Expression Region
77-233aa
Target Protein Sequence
M+VRSSSRTPS DKPVAHVVAN PQAEGQLQWL NRRANALLAN GVELRDNQLV VPSEGLYLIY SQVLFKGQGC PSTHVLLTHT ISRIAVSYQT KVNLLSAIKS PCQRETPEGA EAKPWYEPIY LGGVFQLEKG DRLSAEINRP DYLDFAESGQ VYFGIIAL
Note: The complete
sequence may include tag sequence, target protein sequence, linker sequence and extra sequence that is
translated with the protein sequence for the purpose(s) of secretion, stability, solubility, etc.
If the exact amino acid sequence of this recombinant protein is critical to your application,
please explicitly request the full and complete sequence of this protein before ordering.
Tag Info
Tag-Free
The tag type will be determined during production process. If you have specified tag type, please tell us and we will develop the specified tag preferentially.
Buffer
Lyophilized from a 0.2 μm filtered 20 mM PB, 10 mM NaCl, pH 7
Lead Time
5-10 business days
Note: All of our proteins are default shipped with normal blue ice packs, if you request to ship with dry ice, please communicate with us in advance and extra fees will be charged.
Shelf Life
The shelf life is related to many factors, storage state, buffer ingredients, storage temperature and the stability of the protein itself.
Generally, the shelf life of liquid form is 6 months at -20°C/-80°C. The shelf life of lyophilized form is 12 months at -20°C/-80°C.
Datasheet & COA
Please contact us to get it.
Description
TNF-α drives NF-κB and MAPK signaling cascades central to inflammation, apoptosis, and tumor microenvironment remodeling, making precise functional reagents essential for mechanistic studies. This tag-free recombinant human TNF protein (residues 77–233) demonstrates exceptional potency with an ED50 below 0.05 ng/ml in the murine L929 cytotoxicity assay, corresponding to a specific activity exceeding 2.0 × 10⁷ IU/mg—providing a suitable basis for NF-κB reporter assays, caspase-dependent apoptosis studies, and use as a reference standard in cytokine detection platforms. Endotoxin levels below 1.0 EU/μg ensure that downstream responses in primary immune cell activation experiments or in vivo tumor biology models reflect genuine TNF signaling rather than LPS-driven artifacts. Purity exceeding 98% by SDS-PAGE, combined with this stringent endotoxin control, satisfies the criteria typical for antibody development workflows including immunization, ELISA coating, and functional blocking validation.
