Recombinant Mouse IL-3 Protein


1 μg/lane of Recombinant Mouse IL-3 was resolved with SDS-PAGE under reducing (R) conditions and visualized by silver staining, showing a single band at 15 kDa.
Recombinant Mouse IL-3 (Catalog # 403-ML) stimulates cell proliferation of the NFS-60 mouse myelogenous leukemia lymphoblast cell line. The ED50 for this effect is 20-100 pg/mL.

Product Details

Reactivity MuSpecies Glossary
Applications Bioactivity

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Recombinant Mouse IL-3 Protein Summary

Details of Functionality
Measured in a cell proliferation assay using NFS‑60 mouse myelogenous leukemia lymphoblast cells. Holmes, K.L. et al. (1985) Proc. Natl. Acad. Sci. USA 82:6687. The ED50 for this effect is 20-100 pg/mL.
E. coli-derived mouse IL-3 protein
Asp33-Cys166, with an N-terminal Met
Accession #
N-terminal Sequence
Protein/Peptide Type
Recombinant Proteins
>97%, by SDS-PAGE under reducing conditions and visualized by silver stain.
Endotoxin Note
<0.10 EU per 1 μg of the protein by the LAL method.


Theoretical MW
15 kDa.
Disclaimer note: The observed molecular weight of the protein may vary from the listed predicted molecular weight due to post translational modifications, post translation cleavages, relative charges, and other experimental factors.
Read Publications using
403-ML in the following applications:

Packaging, Storage & Formulations

Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
  • 12 months from date of receipt, -20 to -70 °C as supplied.
  • 1 month, 2 to 8 °C under sterile conditions after reconstitution.
  • 3 months, -20 to -70 °C under sterile conditions after reconstitution.
Lyophilized from a 0.2 μm filtered solution in PBS with BSA as a carrier protein. *1 mg pack size (01M) is supplied as a 0.2 µm filtered solution in PBS with BSA as a carrier protein.
>97%, by SDS-PAGE under reducing conditions and visualized by silver stain.
Reconstitution Instructions
Reconstitute at 100 μg/mL in sterile PBS containing at least 0.1% human or bovine serum albumin.


This product is produced by and ships from R&D Systems, Inc., a Bio-Techne brand.

Alternate Names for Recombinant Mouse IL-3 Protein

  • Hematopoietic growth factor
  • IL3
  • IL-3
  • IL-3MGC79398
  • interleukin 3 (colony-stimulating factor, multiple)
  • interleukin-3
  • Mast cell growth factor
  • mast-cell growth factor
  • MCGFMGC79399
  • multilineage-colony-stimulating factor
  • Multipotential colony-stimulating factor
  • P-cell stimulating factor
  • P-cell-stimulating factor


Interleukin 3 is a pleiotropic factor produced primarily by activated T cells that can stimulate the proliferation and differentiation of pluripotent hematopoietic stem cells as well as various lineage committed progenitors. In addition, IL-3 also affects the functional activity of mature mast cells, basophils, eosinophils and macrophages. Because of its multiple functions and targets, it was originally studied under different names, including mast cell growth factor P-cell stimulating factor, burst promoting activity, multi-colony stimulating factor, thy-1 inducing factor and WEHI-3 growth factor. In addition to activated T cells, other cell types such as human thymic epithelial cells, activated mouse mast cells, mouse keratinocytes and neurons/astrocytes can also produce IL-3. At the amino acid sequence level, mature human and mouse IL-3 share only 29% sequence identity. Consistent with this lack of homology, IL-3 activity is highly species-specific and human IL-3 does not show activity on mouse cells.

IL-3 exerts its biological activities through binding to specific cell surface receptors. The high affinity receptor responsible for IL-3 signaling is composed of alpha and beta subunits. The IL-3R alpha is a member of the cytokine receptor super family and binds IL-3 with low affinity. Two distinct beta subunits, AIC2A ( beta IL-3) and AIC2B ( beta c) are present in mouse cells. beta IL-3 also binds IL-3 with low affinity and forms a high affinity receptor with the alpha subunit. The beta c subunits does not bind any cytokine but forms functional high affinity receptors with the alpha subunit of the IL-3, IL-5 and GM-CSF receptors. Receptors for IL-3 are present on bone marrow progenitors, macrophages, mast cells, eosinophils, megakaryocytes, basophils and various myeloid leukemic cells.

  1. Yokota, T. et al., 1984, Proc. Natl. Acad. Sci. USA 81:1070.
  2. Fung, M.C. et al., 1984, Nature 307:233.
  3. Miyatake, S. et al., 1985, Proc. Natl. Acad. Sci. USA 82:316.

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Publications for IL-3 (403-ML)(102)

We have publications tested in 1 confirmed species: Mouse.

We have publications tested in 3 applications: Bioassay, In Vivo, In vivo injection.

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Showing Publications 1 - 10 of 102. Show All 102 Publications.
Publications using 403-ML Applications Species
R Kono, M Nakamura, S Nomura, N Kitano, T Kagiya, Y Okuno, KI Inada, A Tokuda, H Utsunomiya, M Ueno Biological and epidemiological evidence of anti-allergic effects of traditional Japanese food ume (Prunus mume) Sci Rep, 2018;8(1):11638. 2018 [PMID: 30076416] (Bioassay, Mouse) Bioassay Mouse
Y Heshmati, S Kharazi, G Türköz, D Chang, E Kamali Dol, J Boström, A Krstic, T Boukoura, E Wagner, N Kadri, R Månsson, M Altun, H Qian, J Walfridsso The histone chaperone NAP1L3 is required for haematopoietic stem cell maintenance and differentiation Sci Rep, 2018;8(1):11202. 2018 [PMID: 30046127] (Bioassay, Mouse) Bioassay Mouse
P Wünsche, ESP Eckert, T Holland-Le, A Paruzynski, A Hotz-Wagen, R Fronza, T Rath, I Gil-Farina, M Schmidt, C von Kalle, C Klein, CR Ball, F Herbst, H Glimm Mapping Active Gene-Regulatory Regions in Human Repopulating Long-Term HSCs Cell Stem Cell, 2018;23(1):132-146.e9. 2018 [PMID: 29979988]
X Jin, X He, X Cao, P Xu, Y Xing, S Sui, L Wang, J Meng, W Lu, R Cui, H Ni, M Zhao Iron overload impairs normal hematopoietic stem and progenitor cells through reactive oxygen species and shortens survival in myelodysplastic syndrome mice Haematologica, 2018;0(0):. 2018 [PMID: 29903757] (In Vivo, Mouse) In Vivo Mouse
Reitz M, Hartmann W, Rudiger N, Orinska Z, Brunn M, Breloer M Interleukin-9 promotes early mast cell-mediated expulsion of Strongyloides ratti but is dispensable for generation of protective memory. Sci Rep, 0;8(1):8636. 0 [PMID: 29872093] (Bioassay, Mouse) Bioassay Mouse
M Reitz, W Hartmann, N Rüdiger, Z Orinska, ML Brunn, M Breloer Interleukin-9 promotes early mast cell-mediated expulsion of Strongyloides ratti but is dispensable for generation of protective memory Sci Rep, 2018;8(1):8636. 2018 [PMID: 29872093] (Bioassay, Mouse) Bioassay Mouse
A Rasheed, R Tsai, CL Cummins Loss of the Liver X Receptors Disrupts the Balance of Hematopoietic Populations, With Detrimental Effects on Endothelial Progenitor Cells J Am Heart Assoc, 2018;7(10):. 2018 [PMID: 29739800] (Bioassay, Mouse) Bioassay Mouse
R Berndt, L Hummitzsch, K He beta, M Albrecht, K Zitta, R Rusch, B Sarras, A Bayer, J Cremer, F Faendrich, J Gro beta Allogeneic transplantation of programmable cells of monocytic origin (PCMO) improves angiogenesis and tissue recovery in critical limb ischemia (CLI): a translational approach Stem Cell Res Ther, 2018;9(1):117. 2018 [PMID: 29703251] (Bioassay, Mouse) Bioassay Mouse
JP Robichaux, YY Elamin, Z Tan, BW Carter, S Zhang, S Liu, S Li, T Chen, A Poteete, A Estrada-Be, AT Le, A Truini, MB Nilsson, H Sun, E Roarty, SB Goldberg, JR Brahmer, M Altan, C Lu, V Papadimitr, K Politi, RC Doebele, KK Wong, JV Heymach Mechanisms and clinical activity of an EGFR and HER2 exon 20-selective kinase inhibitor in non-small cell lung cancer Nat. Med., 2018;0(0):. 2018 [PMID: 29686424] (Bioassay, Mouse) Bioassay Mouse
P Herbener, K Schönfeld, M König, M Germer, JM Przyborski, K Bernöster, J Schüttrump Functional relevance of in vivo half antibody exchange of an IgG4 therapeutic antibody-drug conjugate PLoS ONE, 2018;13(4):e0195823. 2018 [PMID: 29672587] (Bioassay, Mouse) Bioassay Mouse
Show All 102 Publications.

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Gene Symbol Il3