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Recombinant TNF-α, Human  BK0171-1mg
RecombinantRecombinant TNF-α, Human 
Catalog No.BK0171-1mg
SourceEscherichia coli.
Molecular Weight17.3 kDa, observed by reducing SDS-PAGE.
Purity> 98% as analyzed by SDS-PAGE and HPLC.
Biological ActivityED50 < 30 pg/ml, measured in a cytotoxicity assay using L-929 mouse fibrosarcoma cells in the presence of the metabolic inhibitor actinomycin D, corresponding to a specific activity of > 3.3 x 10ˆ7 units/mg.
Physical AppearanceSterile Filtered White lyophilized (freeze-dried) powder.
FormulationLyophilized after extensive dialysis against PBS.
EndotoxinLess than 0.2 EU/μg determined by LAL test.
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Recombinant :
Recombinant TNF-α, Human 
Source :
Escherichia coli.
Molecular Weight :
17.3 kDa, observed by reducing SDS-PAGE.
Purity :
> 98% as analyzed by SDS-PAGE and HPLC.
Biological Activity :
ED50 < 30 pg/ml, measured in a cytotoxicity assay using L-929 mouse fibrosarcoma cells in the presence of the metabolic inhibitor actinomycin D, corresponding to a specific activity of > 3.3 x 10ˆ7 units/mg.
Physical Appearance :
Sterile Filtered White lyophilized (freeze-dried) powder.
Formulation :
Lyophilized after extensive dialysis against PBS.
AA Sequence :
VRS SSRTPSDKPV AHVVANPQAE GQLQWLNRRA NALLANGVEL RDNQLVVPSE GLYLIYSQVL FKGQGCPSTH VLLTHTISRI AVSYQTKVNL LSAIKSPCQR ETPEGAEAKP WYEPIYLGGV FQLEKGDRLS AEINRPDYLD FAESGQVYFG IIAL
Endotoxin :
Less than 0.2 EU/μg determined by LAL test.
Reconstitution :
Reconstituted in ddH2O or PBS at 100 μg/ml.
Storage :
Lyophilized recombinant Human Tumor Necrosis Factor-alpha (TNF-α), remains stable up to 6 months at -80°C from date of receipt. Upon reconstitution, human TNF-α should be stable up to 1 week at 4°C or up to 3 months at -20°C.
Usage :
This material is offered by USA Bioworld biotech for research, laboratory or further evaluation purposes. For research use only.
Description :
Tumor Necrosis Factor-alpha (TNF-a) is a homotrimer with a subunit molecular mass of 17.3 kDa. Tumor Necrosis Factor-alpha(TNF-a) 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 Human Tumor Necrosis Factor-alpha (TNF-α) produced in E.coli is a single non-glycosylated polypeptide chain containing 157 amino acids. A fully biologically active molecule, rhTNF-α has a molecular mass of 17.3 kDa analyzed by reducing SDS-PAGE and is obtained by chromatographic techniques at GenScript.
Blocking peptide available as BK0171-1mgP
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