Recombinant Human TNF sRI

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Pricing & Details

Product. No.T171
Alternate Names
TNFRSF1A, TNFAR, TNF-R55, TNFR60, p55, CD120a
Expression Host
E. coli
Prod No.
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T171-25 μg
25 µg
In stock
Min: 1
Step: 1


Tumor necrosis factor receptor superfamily, member 1A, (TNFRI) also known as TNFRSF1A or CD120A is the principal receptor through which many of the pro-inflammatory activities of TNFα are mediated.2 TNFRI contains a death domain through which it interacts with other death-domain proteins to promote cellular responses.2 TNFRI is found in both membrane-bound and soluble forms. It interacts with membrane-bound or soluble forms of its ligand (TNFα), respectively. Binding of membrane-bound TNFα to the membrane-bound receptor is involved in cell survival, apoptosis, and inflammation by inducing receptor trimerization and activation. 4 Proteolytic processing of TNFRI yields the release of the soluble form of the receptor (TNFsRI), which inhibits inflammation via the interaction with free TNFα.

Protein Details

>97% by SDS-PAGE and analyzed by silver stain.
Endotoxin Level
<0.01EU/µg as determined by the LAL method
Biological Activity
The biological activity of Soluble Tumor Necrosis Factor Receptor Type I is determined by its inhibitory effect of the TNF-Alpha mediated cytotoxicity in mouse L-929 cells. The expected ED50 for this effect in the presence of 0.25 ng/ml of recombinant human TNF-Alpha is 0.05 µg/ml.
Expression Host
E. coli
Protein Accession No.
Amino Acid Sequence
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N-terminal Sequence Analysis
State of Matter
Predicted Molecular Mass
The predicted molecular weight of Recombinant Human sTNF Receptor Type I is Mr 21 kDa.
This recombinant protein was 0.2 µm filtered and lyophilized from modified Dulbecco’s phosphate buffered saline (1X PBS) pH 7.2 – 7.3 with no calcium, magnesium, or preservatives.
Storage and Stability
This lyophilized protein is stable for six to twelve months when stored desiccated at -20°C to -70°C. After aseptic reconstitution, this protein may be stored at 2°C to 8°C for one month or at -20°C to -70°C in a manual defrost freezer. Avoid Repeated Freeze Thaw Cycles. See Product Insert for exact lot specific storage instructions.
Country of Origin
Next Day Ambient
NCBI Gene Bank
IMPORTANT Use lot specific datasheet for all technical information pertaining to this recombinant protein.
Products are for research use only. Not for use in diagnostic or therapeutic procedures.
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