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IL2RG

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All listed services and products are For Research Use Only. Do Not use in any diagnostic or therapeutic applications.

Background

The interleukin-2 receptor subunit gamma (IL2RG) is a 42–75 kDa type I glycoprotein of the cytokine receptor superfamily. The mature protein includes an extracellular region with a fibronectin type III domain and a cytokine receptor homology module, single transmembrane helix and intracellular tail containing the Box 1/Box 2 motifs required for Janus kinase (JAK) docking. The intracellular domain has no intrinsic enzymatic activity but acts as a critical docking site so that JAK3 will bind and then phosphorylate tyrosine residues on the receptor after cytokines bind to start signaling downstream. It combines with ligand-specific alpha and beta chains to produce the functional receptors of at least six different interleukins, including IL-2, IL-4, IL-7, IL-9, IL-15 and IL-21. This common usage provides a basis for how mutations in an individual gene can POTENTIATE multiple cytokine signaling pathways. The receptor complexes are expressed on the surface of developing and mature lymphocytes, where they dictate growth, survival and differentiation. The IL-2RG is particularly interesting as it can exist in three forms: a high affinity heterotrimer (αβγ), an intermediate-affinity heterodimer (βγ) and a low-affinity monomer (α); the γc-containing βγ dimer mediates most of IL-2 signaling in activated T cells.

Fig.1 Schematic overview of IL2RG/CD132-dependent cytokine receptor signaling. (OA Literature)Fig.1 Schematic overview of common γ-chain (IL2RG/CD132)-dependent cytokine receptor signaling.1

IL2RG Protein Function: The Hub of Lymphocyte Cytokine Signaling

IL2RG functional scope spans a variety of interconnected immunological domains:

  • T-Cell Development and Homeostasis: The IL-2 receptor, composed of IL-2Rαand γc, is an essential component for maintaining the survival and proliferative capacity of double-negative (DN) thymocytes early in T-cell development and is also a key factor in regulating populations of naive and memory T cells in the periphery. Interaction with this class of complex- also activates JAK1/JAK3 and STAT5 which induces expression of anti apoptosis proteins and cell cycle regulatory molecules. Like the CSF2RB on which X-SCID is based, lack of functional γc or its signaling also leads to T-cell development arrest at an immature stage and ultimately a severe (T-cell) lymphopenia characterized by X-linked SCID (X-SCID).
  • NK-Cell Maturation and Function: IL-15 signaling through the IL-2Rβ/γc receptor complex is essential for NK-cell development, maturation, and survival. The marked loss of mature NK cells associated with γc-deficient signaling demonstrates the non-redundant requirement for this receptor subunit in NK-cell lineage development and homeostasis.
  • B-Cell Differentiation and Antibody Production: While B cells are present in X-SCID models, they are functionally incompetent due to the loss of IL-4 and IL-21 signaling, both of which require γc for germinal center formation, class-switch recombination, and plasma cell differentiation. This functional B-cell deficiency contributes to the hypogammaglobulinemia observed in affected individuals.

IL2RG Membrane Protein Product

We acknowledge that the type I cytokine receptor topology, numerous disulfide links and especially JAK3-interaction demands of IL2RG provide unique hurdles for its production. In this study, we discuss how multiple expression systems are employed to generate full-length IL2RG constructs that are well-folded, glycosylated, bind to native cytokine and transduce JAK3. Contains full-length membrane-bound receptor, soluble extracellular domain fragments and the IL2RG-IL2RB heterodimere complex. The methodology offers high reproducibility to enable biophysical validation of all preparations for suitability on not only structural studies but also ligand binding assay and antibody screenings.

IL2RG Protein Product

Not finding the membrane protein product you need? Contact us to start your one-stop custom service!

IL2RG Stable Cell Line Product

The inability to quickly generate reliable, reproducible cellular models for dissecting IL2RG-driven biology and validating therapeutic candidates is a barrier to progress. Our stable cell lines were generated to express wild-type or disease-associated alleles of mouse and rat IL2RG in addition to modulating endogenous expression for loss-of-function studies. Optimized for high-throughput JAK-STAT reporter assays, T-cell proliferation studies, and in vitro analysis of other types of cytokine signaling pathways and gene therapy vector potency quantification, these platforms provide experimental consistency to support multi-phase research initiatives.

IL2RG Stable Cell Line Product

Not finding the stable cell line product you need? Contact us to start your one-stop custom service!

IL2RG Recombinant Antibody Product

We offer IL2RG secndry antibodies with high affinity recombinant antibodies portfolio that are tailored to meet the high standards of various research needs. Using advanced recombinant technologies, these antibodies are designed to be more specific, sensitive and consistent from batch to batch than traditional polyclonal antibodies. Our IL2RG recombinant antibody have been validated for use in Western Blotting (WB), ELISA, Flow Cytometry (FCM), Immunofluorescence (IF), Immunocytochemistry(ICC) and Immunohistochemistry(IHC) and immunoprecipitation with the ability to accurately detect & quantify IL2RG from different sample types.

IL2RG Recombinant Antibody Product

Not finding the recombinant antibody product you need? Contact us to start your one-stop custom service!

Product Features

  • High Purity & Activity: High purity and verified integrity for dependable downstream work.
  • Diverse Expression Systems: Choice of expression formats to match routine or specialized projects.
  • Species Reactivity: Products available for human, mouse, pig, and other species.
  • Validated Applications: Application-tested to deliver consistent signals across common lab workflows.
  • Exceptional Lot-to-Lot Consistency: Tight lot-to-lot control for reproducible performance.
  • Customization Options: Flexible customization of tags, labels, or packaging upon request.

Custom IL2RG Membrane Protein and Antibody Discovery Services

In addition to catalog products, we provide customized services for the discovery and development of membrane protein/antibodies. On the basis of our deep knowledge within cytokine receptor signaling and immunodeficiency, we aim to help you with:

  • Custom IL2RG Receptor Production: Tailored expression, purification, and characterization of challenging multi-domain receptor constructs.
  • Custom Antibody Development: From antigen design to antibody engineering (monoclonal, polyclonal, recombinant) for specific research applications.
  • Stable Cell Line Development: Generation of bespoke stable cell lines expressing your target of interest.
  • Functional Assay Development: Designing and executing assays to assess receptor activation and ligand.

Frequently Asked Questions (FAQ)

  1. Are your IL2RG reagents approved for clinical or diagnostic use?

    No, all IL2RG products and services are strictly for research use only and are not intended for clinical diagnosis, prevention, treatment, or cure of any disease.

  2. Do you have stable cell lines with IL2RG inducible expression or co-expressed JAK3?

    Absolutely. Our cell engineering team extrapolates a number of tetracycline-inducible systems and lines co-expressing IL2RG with JAK3, STAT5 or cytokine-specific alpha chains (IL-7Rα, IL-4Rα) for complete signaling studies on the regular. Let's have will discuss to or your desired expression architecture basis and phenotypic.

  3. What variants of the species are available?

    We provide human, mouse and rat IL2RG reagent in our catalogue. Production of additional orthologs or engineered mutants, e.g. JAK3-binding deficient variants, and patient-specific X-SCID mutations, as well as codon optimized constructs can be obtained on request.

  4. Is it possible to request bulk amounts or custom formulations for high-throughput screening?

    Yes. We offer flexible pricing tiers to meet your academic and industrial scale-up needs. In order for us to provide you with your own specific quote, please enter the details of your projected volume and timeline into our inquiry portal.

Reference
  1. Briassouli, Efrossini, et al. "IL2RG-related immunodeficiencies: from SCID to atypical presentations." Frontiers in Immunology 17 (2026): 1703097. Under Open Access license CC BY 4.0, without modification. https://doi.org/10.3389/fimmu.2026.1703097
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