Recombinant Human TNF protein(active trimer), C-His Tag
Product Description
Cat
IMP-610
Official Symbol
TNF
Product Overview
Recombinant Human TNF protein(NP_000585.2)(Val 77-Leu 233), fused to C-His Tag, was expressed in HEK293.
Expression System
HEK293
Species
Human
Tag
C-His Tag
Form
Lyophilized from 0.22 μm filtered solution in PBS, pH7.4. Normally trehalose is added as protectant before lyophilization.
Molecular Mass
The protein has a calculated MW of 18.3 kDa. The protein migrates as 18.2 kDa under reducing (R) condition (SDS-PAGE).
Protein length
Val 77-Leu 233
Endotoxin
Less than 1.0 EU per μg by the LAL method.
Purity
>95% as determined by SDS-PAGE.
>95% as determined by SEC-MALS.
Storage
For long term storage, the product should be stored at lyophilized state at -20°C or lower.
Please avoid repeated freeze-thaw cycles.
This product is stable after storage at:
-20°C to -70°C for 12 months in lyophilized state;
-70°C for 3 months under sterile conditions after reconstitution.
Reconstitution
It is recommended that sterile water be added to the vial to prepare a stock solution of 0.2 ug/ul. Centrifuge the vial at 4°C before opening to recover the entire contents.
SDS-PAGE
SDS-PAGE

SEC-MALS 1
SEC-MALS

Bioactivity-ELISA 1
Bioactivity-ELISA

Immobilized Human TNF-alpha, His Tag at 0.2 μg/mL (100 μL/well) can bind Human TNFR1, Fc Tag with a linear range of 0.4-13 ng/mL.

Bioactivity-SPR 1
Bioactivity-SPR

Humira (Adalimumab) captured on CM5 chip via anti-human IgG Fc antibodies surface, can bind Human TNF-alpha, His Tag (active trimer) (MALS verified) with an affinity constant of 0.244 nM as determined in a SPR assay.

Bioactivity-Cell based assay 1
Bioactivity-Cell based assay

Human TNF-alpha, His Tag (active trimer) (MALS verified) induces cytotoxicity effect on the WEH1-13VAR cells in the presence of the metabolic inhibitor actinomycin D. The EC50 for this effect is 0.013-0.074 ng/mL.

Data Sheet MSDS
For Research Use Only. Not intended for any clinical use. No products from Creative BioMart may be resold, modified for resale or used to manufacture commercial products without prior written approval from Creative BioMart.

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