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Interleukin-2 human

IL-2, recombinant, expressed in E. coli, lyophilized powder, suitable for cell culture

T-cell growth factor, Interleukin-2, IL-2, hIL-2
Número MDL:

Nivel de calidad


origen biológico



expressed in E. coli


lyophilized powder


≤700 EC50


endotoxin tested

mol peso

15.5 kDa


pkg of 5X10 μg
pkg of 10 μg


cell culture | mammalian: suitable


≤1 EU/μg

Nº de acceso UniProt

temp. de almacenamiento


Gene Information

human ... IL2(3558)

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Descripción general

Interleukin-2 (IL-2) is an α-helical cytokine belonging to T-helper cell type 1. It has a molecular weight of 15kDa. The IL2 gene is mapped to human chromosome 4q27. IL-2 is originally called as T cell growth factor.


Interleukin-2 human has been used:
  • in the stimulation of natural killer cells
  • to study its ability to stimulate lymphocyte growth and prevent apoptosis
  • as an antigen in enzyme-linked immunosorbent assay (ELISA), to analyse the human autoantibody reactivities in health and in type 1 diabetes mellitus


10 μg in poly bottle

Acciones bioquímicas o fisiológicas

Interleukin-2 (IL-2) is essential for proliferation of natural killer (NK) cells, lymphocytes and macrophages. It plays a key role in the immune system functions such as NK cell-stimulated immune responses. IL-2 also mediates the essential functions of regulatory T cells. It is implicated in autoimmune disease. IL-2 is associated with apoptosis and thus, possesses antitumor response. It mediates CD41+ T-cells differentiation into T-helper cell 1 and 2 effector subsets, preventing T-helper 17 differentiation.
Interleukin-2 (IL-2) is an immunomodulatory factor produced by certain subsets of T lymphocytes. This lympho­kine promotes long term growth of acti­vated T cells and related cell types. IL-2 plays a role in the activation and proliferation of NK cells, induces γ-inter­feron and B cell growth factor secretion, and modulates the expression of the IL-2 receptor.

Forma física

Lyophilized, 0.2 μm filtered, no additives.

Nota de análisis

The biological activity is measured by the dose-dependent stimulation of the proliferation of murine CTLL-2 cells.

Código de clase de almacenamiento

13 - Non Combustible Solids



Punto de inflamabilidad F

Not applicable

Punto de inflamabilidad C

Not applicable

Equipo de protección personal

Eyeshields, Gloves, type N95 (US)

Certificado de Análisis

Certificado de origen

  1. Which document(s) contains shelf-life or expiration date information for a given product?

    If available for a given product, the recommended re-test date or the expiration date can be found on the Certificate of Analysis.

  2. How do I get lot-specific information or a Certificate of Analysis?

    The lot specific COA document can be found by entering the lot number above under the "Documents" section.

  3. Where can I find information on the specific activity of Product I2644, Interleukin-2 human - recombinant?

    The EC50 has been determined by dose-dependent stimulation of the proliferation of murine CTLL-2 cells.  You can find the lot specific value for the EC50 of this product on the Certificate of Analysis.  Certificates of Analysis can be viewed on our website by entering the lot number on the product detail page (for I2644).

  4. Is Product I2644, Interleukin-2 human - recombinant, endotoxin tested?

    Yes, the endotoxin levels are reported on the Certificate of Analysis.  Certificates of Analysis can be viewed on our website by entering the lot number on the product page (for I2644).

  5. How can I convert the EC50 of interleukin from ng/mL to units/mL when using Product I2644, Interleukin-2 human - recombinant?

    The specific activity in Units/mg = 1 × 106 / ED50 (in ng/ml).

  6. How should I dissolve Product I2644, Interleukin-2 human - recombinant?

    Reconstitute the contents of the vial using 100 mM acetic acid to a concentration of 0.1-1.0 mg/ml. This solution can then be diluted into other aqueous buffers.

  7. How should solutions of Product I2644, Interleukin-2 human - recombinant, be stored?

    Interleukin solutions can be stored at 2-8°C for up to 1 week. For extended storage, freeze at -20°C in working aliquots to avoid freezing and thawing.

  8. How do I find price and availability?

    There are several ways to find pricing and availability for our products. Once you log onto our website, you will find the price and availability displayed on the product detail page. You can contact any of our Customer Sales and Service offices to receive a quote.  USA customers:  1-800-325-3010 or view local office numbers.

  9. What is the Department of Transportation shipping information for this product?

    Transportation information can be found in Section 14 of the product's (M)SDS.To access the shipping information for this material, use the link on the product detail page for the product. 

  10. My question is not addressed here, how can I contact Technical Service for assistance?

    Ask a Scientist here.

Interleukin 2, 37-37 (2012)
Natural killer cells in the synovial fluid of rheumatoid arthritis patients exhibit a CD56bright, CD94bright, CD158negative phenotype
Pridgeon C, et al.
Rheumatology (Basel), 42(7), 870-878 (2003)
Culture methods for turtle lymphocytes
Ulsh BA, et al.
Methods in Cell Science : An Official Journal of the Society for In Vitro Biology, 22(4), 285-297 (2000)
Kuan-Hui Ethan Chen et al.
Translational oncology, 14(11), 101195-101195 (2021-08-11)
Previous work has shown systemic knockdown of the long form prolactin receptor (LFPRLR) in vivo markedly reduced metastasis in mouse models of breast cancer, but whether this translated to prolonged survival was unknown. Here we show that LFPRLR knockdown in
Loss of immune tolerance to IL-2 in type 1 diabetes
Perol L, et al.
Nature Communications, 7(2), 13027-13027 (2016)


Interleukin Family (IL)

The Interleukins comprise a disparate group of cytokines and growth factors that are produced by and released from leukocytes. Interleukin-1β (1L-1β) is released primarily from stimulated macrophages and monocytes and plays a key role in inflammatory and immune responses and may induce anti-tumor immunity.

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