The Recombinant Human IL-13 Protein is a biologically active recombinant protein that plays a significant role in various cellular processes and signaling pathways in human biology. This protein is widely employed in immunological research, cell biology studies, protein-protein interaction analyses, and therapeutic development, providing researchers with a reliable tool for investigating IL-13 function and its implications in health and disease.
This product (SKU: RPCB1170) is produced using HEK293 cells and features a C-His tag for convenient detection and purification. The protein exhibits a calculated molecular weight of 13.18 kDa with an observed molecular weight of 15 kDa, 25-35 kDa under denaturing conditions, achieving ≥ 95 % as determined by SDS-PAGE.. Functional bioactivity has been validated through rigorous quality control assays, confirming its suitability for demanding research applications.
High quality, high purity and low endotoxin recombinant Recombinant Human IL-13 Protein (RPCB1170), tested reactivity in HEK293 cells and has been validated in SDS-PAGE.100% guaranteed.
Endotoxin:
< 0.1 EU/μg of the protein by LAL method.
Purity:
≥ 95 % as determined by SDS-PAGE.
Formulation:
Lyophilized from a 0.22 μm filtered solution of PBS, pH 7.4.
Bio-Activity:
Measured in a cell proliferation assay using TF-1 Human erythroleukemic cells. The ED 50 for this effect is 1-4 ng/mL, corresponding to a specific activity of 0.25 × 10 6 ~1.0× 10 6 units/mg.
Reconstitution:
Centrifuge the vial before opening. Reconstitute to a concentration of 0.1-0.5 mg/mL in sterile distilled water. Avoid vortex or vigorously pipetting the protein. For long term storage, it is recommended to add a carrier protein or stablizer (e.g. 0.1% BSA, 5% HSA, 10% FBS or 5% Trehalose), and aliquot the reconstituted protein solution to minimize free-thaw cycles.
Storage:
Store at -20℃.Store the lyophilized protein at -20℃ to -80 ℃ up to 1 year from the date of receipt. After reconstitution, the protein solution is stable at -20℃ for 3 months, at 2-8℃ for up to 1 week.
Interleukin 13 (IL13) is also known as ALRH,and P600, is a single-chain glycosylated polypeptide, and is a cytokine critical in regulating inflammatory and immune responses. IL13 is secreted by many cell types, but especially by T helper type 2 (Th2) cells. IL-13 induces its effects through a multi-subunit receptor that includes the alpha chain of the IL-4 receptor (IL-4Rα) and at least one of two known IL-13-specific binding chains.As a cytokine, IL-13 protein is critical in regulating inflammatory, immune responses, and diseases. Also, it inhibits the production of pro-inflammatory cytokines and chemokines, and thus down-regulates macrophage activity. IL-13 protein and antibody are more importantly implicated as a central mediator of immunoregulatory processes in various cell types.
Recombinant Human IL-13 Protein was determined by SDS-PAGE under reducing conditions with Coomassie Blue.
Recombinant Human IL-13 stimulates cell proliferation of the TF-1 Human erythroleukemic cells. The ED50 for this effect is 1-4 ng/mL, corresponding to a specific activity of 0.25 × 106~1.0× 106 units/mg.
