IL3 Protein, Human, Recombinant (His Tag): Product Information
> 95 % as determined by SDS-PAGE
< 1.0 EU per μg of the protein as determined by the LAL method
1. Measured in a cell proliferation assay using TF1 human erythroleukemic cells (Kitamura, T. et al. 1989 J. Cell Physiol. 140: 323.). The ED50 for this effect is typically 0.3-1.5 ng/ml. 2.Loaded Anti-IL3 Antibody, Mouse Monoclonal(Cat. 11858-MM22) on AMC Biosensor, can bind IL3 Protein, Human, Recombinant (His Tag)(Cat. 11858-H08B) with an affinity constant of 0.2 μM as determined by Octet RED System.
A DNA sequence encoding the human IL3 (NP_000579.2) (Met 1-Phe 152) was expressed, fused with a polyhistidine tag at the C-terminus.
The recombinant human IL3 consists of 143 amino acids and predicts a molecular mass of 16.5 kDa. It migrates as an approximately 19 kDa band in SDS-PAGE under reducing conditions.
Lyophilized from sterile 20mM Tris, 500mM NaCl, pH 7.4 Please contact us for any concerns or special requirements. Normally 5 % - 8 % trehalose, mannitol and 0.01% Tween80 are added as protectants before lyophilization.
Please refer to the specific buffer information in the hard copy of CoA.
In general, recombinant proteins are provided as lyophilized powder which are shipped at ambient temperature. Bulk packages of recombinant proteins are provided as frozen liquid. They are shipped out with blue ice unless customers require otherwise.
Stability & Storage
Samples are stable for up to twelve months from date of receipt at -20℃ to -80℃ Store it under sterile conditions at -20℃ to -80℃. It is recommended that the protein be aliquoted for optimal storage. Avoid repeated freeze-thaw cycles.
A hardcopy of COA with reconstitution instruction is sent along with the products. Please refer to it for detailed information.
IL3 Protein, Human, Recombinant (His Tag): Images
Measured in a cell proliferation assay using TF1 human erythroleukemic cells (Kitamura, T. et al. 1989 J. Cell Physiol. 140: 323.). The ED50 for this effect is typically 0.3-1.5 ng/ml.
Loaded Anti-IL3 Antibody, Mouse Monoclonal(Cat. 11858-MM22) on AMC Biosensor, can bind IL3 Protein, Human, Recombinant (His Tag)(Cat. 11858-H08B) with an affinity constant of 0.2 μM as determined by Octet RED System.
IL3 (interleukin 3), also known as IL-3, is a potent growth-promoting cytokine that belongs to the IL-3 family. IL3/IL-3 also belongs to the group of interleukins. Interleukins are produced by a wide variety of body cells. The function of the immune system depends in a large part on interleukins, and rare deficiencies of a number of them have been described, all featuring autoimmune diseases or immune deficiency. The majority of interleukins are synthesized by helper CD4+ T lymphocytes, as well as through monocytes, macrophages, and endothelial cells. They promote the development and differentiation of T, B, and hematopoietic cells. IL3/IL-3 is capable of supporting the proliferation of a broad range of hematopoietic cell types. It is involved in a variety of cell activities such as cell growth, differentiation, and apoptosis. IL3/IL-3 has been shown to also possess neurotrophic activity, and it may be associated with neurologic disorders.
Meyer CG, et al.. (2011) IL3 variant on chromosomal region 5q31-33 and protection from recurrent malaria attacks. Hum Mol Genet. 20(6):1173-81.
Zambrano A, et al. (2010) IL-3 controls tau modifications and protects cortical neurons from neurodegeneration. Curr Alzheimer Res. 7(7):615-24.
Dentelli P, et al.. (2011) IL-3 is a novel target to interfere with tumor vasculature. Oncogene. 30(50):4930-40.
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