Abbreviation
Recombinant Human IL2 protein (Active)
Purity
Greater than 95% as determined by SDS-PAGE.
Endotoxin
Less than 1.0 EU/ug as determined by LAL method.
Activity
Measured by its binding ability in a functional ELISA. Immobilized Human IL2RA(CSB-MP011649HU3) at 2 μg/mL can bind Human IL2 , the EC50 is 0.4992 to 0.6269 ng/mL.
Alternative Names
IL-2;T-cell growth factor (TCGF);Aldesleukin
Species
Homo sapiens (Human)
Expression Region
21-153aa
Target Protein Sequence
APTSSSTKKTQLQLEHLLLDLQMILNGINNYKNPKLTRMLTFKFYMPKKATELKHLQCLEEELKPLEEVLNLAQSKNFHLRPRDLISNINVIVLELKGSETTFMCEYADETATIVEFLNRWITFCQSIISTLT
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.
Protein Length
Full Length of Mature Protein
Tag Info
N-terminal hFc-tagged
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
Lyophilized from a 0.2 μm sterile filtered PBS, 6% Trehalose, pH 7.4
Storage
Store at -20°C/-80°C upon receipt, aliquoting is necessary for mutiple use. Avoid repeated freeze-thaw cycles.
Lead Time
Basically, we can dispatch the products out in 3-7 working days after receiving your orders. Delivery time may differ from different purchasing way or location, please kindly consult your local distributors for specific delivery time.
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.
Notes
Repeated freezing and thawing is not recommended. Store working aliquots at 4°C for up to one week.
Shelf Life
The shelf life is related to many factors, storage state, storage temperature and the stability of the product itself. Generally, the shelf life of lyophilized form is 6 months at -20°C/-80°C from the date of receipt.
Datasheet & COA
Please contact us to get it.
Images
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(Tris-Glycine gel) Discontinuous SDS-PAGE (reduced) with 5% enrichment gel and 15% separation gel.
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Activity
Measured by its binding ability in a functional ELISA. Immobilized Human IL2RA(CSB-MP011649HU3) at 2μg/mL can bind Human IL2,the EC50 is 0.4992 to 0.6269 ng/mL.
Description
Interleukin-2 (IL-2) drives T-cell proliferation and activation through high-affinity receptor engagement, making quantitative binding data essential for interpreting dose-response experiments. This protein demonstrates an EC50 of 0.50–0.63 ng/mL in functional ELISA against immobilized IL-2Rα, providing a validated benchmark for cell-based proliferation assays with PBMC, primary T cells, or TF-1 cells where receptor occupancy directly correlates with mitogenic response. The full-length mature sequence (aa 21–153) preserves native epitopes, supporting its use as a coating antigen in antibody development workflows and as a positive control in cytokine detection platforms. With endotoxin levels below 1.0 EU/μg and purity exceeding 95%, this preparation meets the quality thresholds commonly required for JAK/STAT signaling studies and in vivo tumor immunology models, where LPS contamination would confound immune cell activation readouts.