Abbreviation
Recombinant Human TNFRSF1A protein, partial (Active)
Purity
>97% 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 its ability to inhibit the TNF-alpha mediated cytotoxicity in the L-929 cells is less than 0.05 μg/ml, corresponding to a specific activity of >2x104 IU/mg in the presence of 0.25 ng/mL of rHuTNF-alpha.
Alternative Names
CD120a; FPF; MGC19588; p55; p55-R; p60; TBP1; TBPI; TNF R; TNF R55; TNF-R1; TNF-RI; TNFAR; TNFR-I; TNFR1; TNFR55; TNFR60; TNFRI; TNFRSF1a; TNR1A_HUMAN; Tumor necrosis factor receptor 1; Tumor necrosis factor receptor superfamily, member 1A; Tumor necrosis factor receptor type 1; Tumor necrosis factor receptor type I; Tumor necrosis factor-binding protein 1
Species
Homo sapiens (Human)
Expression Region
22-211aa
Target Protein Sequence
IYPSGVIGLV PHLGDREKRD SVCPQGKYIH PQNNSICCTK CHKGTYLYND CPGPGQDTDC RECESGSFTA SENHLRHCLS CSKCRKEMGQ VEISSCTVDR DTVCGCRKNQ YRHYWSENLF QCFNCSLCLN GTVHLSCQEK QNTVCTCHAG FFLRENECVS CSNCKKSLEC TKLCLPQIEN VKGTEDSGTT
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
0.2 μm filtered PBS, pH 7.4 ,lyophilized
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
TNFRSF1A (p55/TNF-RI) serves as the primary high-affinity receptor for TNF-alpha, making its soluble extracellular domain an essential tool for dissecting TNF signaling in inflammation and tumor biology. This tag-free recombinant construct spans residues 22–211, encompassing the complete extracellular ligand-binding domain, and demonstrates potent neutralizing activity with an ED50 below 0.05 μg/mL in L-929 cytotoxicity inhibition assays—corresponding to a specific activity exceeding 2 × 10⁴ IU/mg. Such validated TNF-alpha blocking capacity supports use in competitive inhibition assays, blocking antibody screening, therapeutic antibody epitope mapping, and small-molecule inhibitor discovery programs targeting the TNF/TNFR1 axis. Produced in *E. coli* with purity greater than 97% by SDS-PAGE and endotoxin levels below 1.0 EU/μg, this preparation satisfies the quality criteria typical for cell-based neutralization experiments, SPR-based affinity characterization, and ligand-binding ELISAs requiring a reliable positive control.