IL-2 Receptor α, Human Recombinant

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SKU:
7100-50
$183
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Description

IL-2 Receptor α, Human Recombinant is available at Gentaur for Next week delivery.

A receptor present on immune cells like lymphocytes, which binds and responds to IL-2 cytokine

Biomolecule/Target: IL-2 Rα

Alternates names: soluble IL-2 receptor, TAC-antigen, CD25 antigen

Synonyms: soluble IL-2 receptor, TAC-antigen, CD25 antigen

Background Information: The IL-2 receptor system consists of three non-covalently linked subunits termed IL-2Rα, IL-2Rβ, and IL-2Rγ. The IL-2Rα is a type I transmembrane protein consisting of a 219 amino acid extracellular domain, a 19 amino acid transmembrane domain and a 13 amino acid intracellular domain, which is not involved in the transduction of IL-2 signals. Proteolytic processing of IL-2Rα releases the entire extracellular domain of IL-2Rα thereby generating a 219 amino acid soluble protein called soluble IL-2Rα (sIL-2Rα). The homodimeric form binds IL-2 (KD=10mM) and facilitates IL-2 signaling. The secreted sIL-2Rα is expressed on leukemia cells, lymphoma cells, newly activated T and B cells, as well as on approximately 10% of NK cells. Recombinant human sIL-2Rα is a 24.8 kDa protein containing 219 amino acid residues consisting of only the extracellular domain of IL-2Rα. Due to glycosylation, IL-2Rα has an approximate molecular weight of 31 kDa based on SDSPAGE gel and Mass Spectrometry.

Reconstitution Instructions: Centrifuge the vial prior to opening. Reconstitute in 1x PBS pH 7.2 to a concentration of 0.1-1.0 mg/ml. Do not vortex. This solution can be stored at 2-8°C for up to 1 week. For extended storage, it is recommended to further dilute in a buffer containing a carrier protein (example 0.1% BSA) and store in working aliquots at -20°C to -80°C.

NCBI Gene Symbol: IL2RA

Gene ID: 3561

NCBI Accession: P31785

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Additional Information

Size:
50 μg
Country of Manufacturing Origin:
USA
Country of Animal Origin:
USA
Gene Source:
Human
Recombinant:
Yes
Source:
(BTI-Tn-5B1-4) Hi-5 Insect Cells
Purity by SDS-PAGE:
≥98%
Assay:
SDS-PAGE
Purity:
N/A
Assay 2:
HPLC
Endotoxin Level:
< 0.1 ng/μg of protein (<1EU/μg).
Activity (Specifications/test method):
Determined by its ability to increase the proliferation effect of IL-2 in mouse CTLL-2 cells. In the presence of 1 ng/ml of recombinant IL-2, the expected ED50 for this effect is between 0.5-1.5 μg/ml.
Biological activity:
Determined by its ability to increase the proliferation effect of IL-2 in mouse CTLL-2 cells. In the presence of 1 ng/ml of recombinant IL-2, the expected ED50 for this effect is between 0.5-1.5 μg/ml.
Results:
N/A
Molecular Weight:
24.8 kDa (31 kDa on SDSPAGE due to glycosylation)
Storage Temperature:
-20°C
Shelf Life:
12 months
Concentration:
N/A
Appearance:
Lyophilized powder
Handling:
Centrifuge the vial prior to opening.
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