-
About recombinant protein
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=10nM) 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 SDS-PAGE gel and Mass Spectrometry
-
Other name of the recombinant
CD25, IL2R, TCGFR, IDDM10, Interleukin-2 receptor subunit alpha, TAC antigen, IL-2 receptor subunit alpha
-
Recombinant in
(BTI-Tn-5B1-4) High-5 Insect cells
-
SEQUENCE
ELCDDDPPEI PHATFKAMAY KEGTMLNCEC KRGFRRIKSG SLYMLCTGNS SHSSWDNQCQ CTSSATRNTT KQVTPQPEEQ KERKTTEMQS PMQPVDQASL PGHCREPPPW ENEATERIYH FVVGQMVYYQ CVQGYRALHR GPAESVCKMT HGKTRWTQPQ LICTGEMETS QFPGEEKPQA SPEGRPESET SCLVTTTDFQ IQTEMAATME TSIFTTEYQ
-
Activity
Biological activity was determined by its ability to increase the proliferation effect of IL - 2 in murine 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.
-
Keep at
The lyophilized Secreted IL-2 Receptor alpha recombinant protein is stable for at least 2 years from date of receipt at -20˚C. Reconstituted Secreted IL-2 Receptor alpha is stable for at least 3 months when stored in working aliquots with a carrier protein at -20˚C. As with any protein, exposing Secreted IL-2 Receptor alpha recombinant protein to repeated freeze / thaw cycles is not recommended. When working with proteins care should be taken to keep recombinant protein at a cool and stable temperature.
-
Rec PROTEIN GI
4557667
-
Accession nr
NP_000408.1
-
Pureity
Greater than 98% by SDS-PAGE gel and HPLC analyses.Endotoxin level is less than 0.1 ng per μg (1EU/μg).
-
About
This product is for research use only.
-
Protein s origin
Human
-
Vial
Lyophilized
-
NCBI ID
3559
-
Gene name
interleukin 2 receptor, alpha
-
Source
Homo sapiens
-
Uniprot
P01589
-
-
-
Description
The Secreted IL-2 Receptor alpha Recombinant Protein is a α- or alpha protein sometimes glycoprotein present in blood. The receptors are ligand binding factors of type 1, 2 or 3 and protein-molecules that receive chemical-signals from outside a cell. When such chemical-signals couple or bind to a receptor, they cause some form of cellular/tissue-response, e.g. a change in the electrical-activity of a cell. In this sense, am olfactory receptor is a protein-molecule that recognizes and responds to endogenous-chemical signals, chemokinesor cytokines e.g. an acetylcholine-receptor recognizes and responds to its endogenous-ligand, acetylcholine. However, sometimes in pharmacology, the term is also used to include other proteins that are drug-targets, such as enzymes, transporters and ion-channels.
-
Additional source
Recombinants or rec. proteins
-
Group
recombinants
