Human sTNFsR II ELISA Kit PicoKine® (96 Tests). Quantitate Human TNFRSF1B in cell culture supeatants, serum, plasma ( heparin, EDTA, citrate) and urine. Sensitivity: 2pg/ml. The brand Picokine indicates this is a premium quality ELISA kit. Each Picokine kit delivers precise quantification, high sensitivity, and excellent reproducibility. Only our most reliable and effective kits qualify as Picokine, guaranteeing top-tier results for your assays.
Alternative Names
Tumor necrosis factor receptor superfamily member 1B;Tumor necrosis factor receptor 2;TNF-R2;Tumor necrosis factor receptor type II;TNF-RII;TNFR-II;p75;p80 TNF-alpha receptor;CD120b;Etanercept;Tumor necrosis factor receptor superfamily member 1b, membrane form;Tumor necrosis factor-binding protein 2;TBP-2;TBPII;TNFRSF1B;TNFBR, TNFR2;
Molecular Weight
48291 MW
Immunogen
Expression system for standard: NS0; Immunogen sequence: L23-D257
There is no detectable cross-reactivity with other relevant proteins.
Specificity
Natural and recombinant human sTNFsR?
Subcellular Localization
Isoform 1: Cell membrane; Single-pass type I membrane protein.
Sample Type
Cell culture supeatants, Serum, Plasma, Urine
Anticoagulant
heparin, EDTA or citrate
Precision
Intra-Assay Precision
Inter-Assay Precision
Sample
1
2
3
1
2
3
n
16
16
16
24
24
24
Mean (pg/ml)
16
58
235
14
55
233
Standard deviation
1
2.43
15.04
0.89
3.19
15.37
CV (%)
5.8%%
4.2%
6.4%
6.4%
5.8%
6.6%
Protein Function
Receptor with high affinity for TNFSF2/TNF-alpha and approximately 5-fold lower affinity for homotrimeric TNFSF1/lymphotoxin-alpha. The TRAF1/TRAF2 complex recruits the apoptotic suppressors BIRC2 and BIRC3 to TNFRSF1B/TNFR2. This receptor mediates most of the metabolic effects of TNF-alpha. Isoform 2 blocks TNF-alpha-induced apoptosis, which suggests that it regulates TNF-alpha function by antagonizing its biological activity. .
Background
Tumor necrosis factor receptor p75 (TNF-R p75, or TNF-R2) is a 75-kDa type I transmembrane protein expressed predominantly on cells of hematopoietic lineage. TNF-R p75 belongs to the TNF receptor superfamily characterized by cysteine-rich extracellular regions composed of three to six disulfide-linked domains. The tumor necrosis factor receptor II (TNFRII) gene localizes to 1p36. 2, a genomic region characteristically deleted in neuroblastomas and other malignancies. In addition, TNFRII is the principal mediator of the effects of TNF on cellular immunity, and it may cooperate with TNFRI in the killing of nonlymphoid cells. The standard product used in this kit is recombinant human sTNFRII, consisting of 24-206 amino acid sequence with the molecular mass of 20KDa.
Reproducibility
Lots
Lot 1 (pg/ml)
Lot 2 (pg/ml)
Lot 3 (pg/ml)
Lot 4 (pg/ml)
Mean (pg/ml)
Standard Deviation
CV (%)
Sample 1
16
16
17
16
16
0.43
2.6%
Sample 2
58
61
58
56
58
1.78
3%
Sample 3
235
274
227
275
252
21.93
8.7%
*number of samples for each test n=16.
Notes
Material Required But Not Provided: Microplate Reader capable of reading absorbance at 450nm. Incubator. Automated plate washer . Pipettes and pipette tips capable of precisely dispensing 0.5 µl through 1 ml volumes of aqueous solutions. Multichannel pipettes are recommended for large amount of samples. Deionized or distilled water. 500ml graduated cylinders. Test tubes for dilution.
Gene ID
7133
Gene Name
TNFRSF1B
UniProt ID
P20333
Protein Name
Tumor necrosis factor receptor superfamily member 1B
Store at 4°C for 6 months, at -20°C for 12 months. Avoid multiple freeze-thaw cycles (Ships with gel ice, can store for up to 3 days in room temperature. Freeze upon receiving.)