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Recombinant Human Interleukin-2 protein(IL2)

In Stock
  • 货号:
  • 规格:
  • 图片:
  • 其他:


  • 纯度:
    >97% as determined by SDS-PAGE and HPLC.
  • 内毒素:
    Less than 1.0 EU/μg as determined by LAL method.
  • 生物活性:
    Fully biologically active when compared to standard. The ED50 as determined by a cell proliferation assay using murine CTLL-2 cells is less than 0.1 ng/ml, corresponding to a specific activity of >1.0x107 IU/mg.
  • 基因名:
  • Uniprot No.:
  • 别名:
    Aldesleukin; IL 2; IL-2; IL2; IL2_HUMAN; Interleukin 2; Interleukin-2; interleukin2; Involved in regulation of T cell clonal expansion; Lymphokine; OTTHUMP00000164090; POIL2; T Cell Growth Factor; T-cell growth factor; TCGF
  • 种属:
    Homo sapiens (Human)
  • 蛋白长度:
    Full Length of Mature Protein
  • 来源:
  • 分子量:
    15.4 kDa
  • 表达区域:
  • 氨基酸序列
  • 蛋白标签:
  • 产品提供形式:
    Liquid or Lyophilized powder
    Note: We will preferentially ship the format that we have in stock, however, if you have any special requirement for the format, please remark your requirement when placing the order, we will prepare according to your demand.
  • 缓冲液:
    0.2 μm filtered 20 mM PB, pH 3.5 ,lyophilized
  • 储存条件:
    Store at -20°C/-80°C upon receipt, aliquoting is necessary for mutiple use. Avoid repeated freeze-thaw cycles.
  • 保质期:
    The shelf life is related to many factors, storage state, buffer ingredients, storage temperature and the stability of the protein itself.
    Generally, the shelf life of liquid form is 6 months at -20°C/-80°C. The shelf life of lyophilized form is 12 months at -20°C/-80°C.
  • 货期:
    5-10 business days
  • 产品描述:

    The Recombinant Human Interleukin-2/IL2 was prepared by the expression of a DNA sequence coding for 21-153aa of human IL2 in E.coli. The full-length of mature protein reached up to 97% in purity determined by SDS-PAGE and HPLC analyses. It was also verified to be fully biologically active through its effect on a cell proliferation assay using murine CTLL-2 cells (ED50<0.1 ng/ml, specific activity >1.0x107 IU/mg). The endotoxin of this IL10 is less than 1.0 EU/μg as determined by the LAL method. Proteins in-stock are offered now. The IL2 proteins are tag-free, but CUSABIO offers custom service for you to meet the need of specific tag(s). This recombinant IL2 protein may be used to produce anti-IL2 antibodies or in the immunology studies.

    IL2 is a small α-helical cytokine that regulates immune cell homeostasis through IL2-IL2R signaling. It mediates activation-induced cell death (AICD)and consistently activates T-regulatory (Treg) cells. As a B-cell growth factor, IL2 stimulates antibody synthesis and facilitates the proliferation and differentiation of NK cells to increase their cytolytic functions. IL2 is also essential for the Treg cells' development and survival, which ensures Treg cells exert an important role in the control of the immune response and effectively participate in the pathogenesis of several pathological conditions, such as cancer and metabolic, infectious, autoimmune, and inflammatory diseases.

  • Datasheet & COA:
    Please contact us to get it.



  • 功能:
    Produced by T-cells in response to antigenic or mitogenic stimulation, this protein is required for T-cell proliferation and other activities crucial to regulation of the immune response. Can stimulate B-cells, monocytes, lymphokine-activated killer cells, natural killer cells, and glioma cells.
  • 基因功能参考文献:
    1. the co-culture with human T lymphocytes induce the in vitro maturation of human intestinal organoids, and identify STAT3-activating interleukin-2 (IL-2) as the major factor inducing maturation. PMID: 30072687
    2. This study emphasized on the bone marrow and blood plasma levels of IL-2 in aplastic anaemia and their relationship with disease severity. The results indicate towards the fact that IL-2 may have an important association with the marrow failure of AAA patients and thus can help in disease development. Further study is necessary for better understanding. PMID: 30139310
    3. The present study demonstrated no association between IL-2 (T-330G), IL-16 (T-295C), and IL-17 (A-7383G) genotypes and CP in an Iranian population. PMID: 29400002
    4. In contrast with some reports involving the correlation between polymorphisms of the TGF-beta1 and IL-2 genes and inhibitor development in the world, no statistically significant differences in analysis of the alleles and genotypes for TGF-beta and IL-2 genes were found between the inhibitor and non-inhibitor Iranian patients PMID: 29993342
    5. The current study highlights the possible involvement of the IL-2-330T/G Single Nucleotide Polymorphism in susceptibility to B-Cell Non-Hodgkin Lymphoma . Moreover, IL-10-1082A/G is not a molecular susceptibility marker for B-Cell Non-Hodgkin Lymphoma in Egyptians. PMID: 28713071
    6. interleukin-2 (IL-2) is a non-pancreatic autoimmune target in type 1 diabetes PMID: 27708334
    7. The IL-2 AC genotype and C allele of IL-2 (-330A>C) gene polymorphisms could be potential protective factors and might reduce the risk of oral cancer in Indian population. PMID: 29664031
    8. Data show that GIF (ORF117 ) serves as a competitive decoy receptor by leveraging binding hotspots underlying the cognate receptor interactions of granulocyte macrophage colony-stimulating factor (GM-CSF) and interleukin-2 (IL-2). PMID: 27819269
    9. CD4(+) T cells showed the greatest increase (threefold) in ORMDL3 expression in individuals carrying the asthma-risk alleles, where ORMDL3 negatively regulated interleukin-2 production. The asthma-risk variants rs4065275 and rs12936231 switched CTCF-binding sites in the 17q21 locus. PMID: 27848966
    10. The main mechanism of elimination of mesenchymal stromal cells is cytotoxicity of NK cells that depended on IL-2 production. PMID: 29313232
    11. Uremia patients receiving maintenance hemodialysis with hospitalacquired infection had increased serum inflammatory factors and high throughput hemodialysis significantly decreased CRP, IL2 and TNFalpha levels in the serum, suggesting that high throughput hemodialysis may be beneficial for the prevention of the infections in uremia patients. PMID: 29257244
    12. The simultaneous delivery of multiple proinflammatory payloads to the cancer site conferred protective immunity against subsequent tumor challenges. A fully human homolog of IL2-F8-TNF(mut), which retained selectivity similar to its murine counterpart when tested on human material, may open new clinical applications for the immunotherapy of cancer. PMID: 28716814
    13. Study found that in SLE patients lymphocyte production of IL-2 did not decrease when compared with that of normal subjects. PMID: 29911835
    14. Peripheral blood Tregs failed to effectively utilize IL-2 and had relatively little STAT5 phosphorylation in active ankylosing spondylitis. PMID: 27901054
    15. correction for individual cytokine expression levels revealed qualitative differences of cytokine profiles characterized by significantly increased TNFalpha and decreased IL-2-expressing T-cell proportions in long-term type-1-diabetes patients. PMID: 28377612
    16. CD45 is a regulator of IL-2 synergy in the NKG2D-mediated activation of immature human NK cells PMID: 28655861
    17. genetic polymorphism is associated with increased susceptibility to chronic spontaneous urticaria in Iran PMID: 28159384
    18. PLX4032, a selective BRAF-i, has no inhibitory effect either on NK cell proliferation in response to cytokines IL-2 or IL-15 PMID: 27563819
    19. Results suggest that IL-6 and IL-2 were influenced non-specifically by the presence of a mental disorder and by demographic variables of gender, ethnicity and BMI. Implications of these findings are discussed, as well as possible long-term impact of the identified interleukin differences on immunologic, inflammatory, neuropsychiatric and other systems. PMID: 28486207
    20. possible associations between the IL-2 polymorphisms +114 T>G (rs2069763) and -330 T>G (rs2069762) and the development of gastric cancer; these associations were then correlated with the presence of H. pylori; results show that, among patients with H. pylori infection, the -330 GG and +114 TT genotypes are significantly associated with a high risk of developing gastric cancer, as is the -330G/+114T haplotype PMID: 28458166
    21. Overrepresentation of certain alleles, genotypes and haplotypes in IL-2 gene in febrile seizure patients could predispose individuals to this disease PMID: 28843235
    22. Data reported that let-7i upregulates IL-2 expression by targeting the promoter TATA-box region, which functions as a positive regulator. In HIV-1 infection, the expression of let-7i in CD4(+) T cells is decreased by attenuating its promoter activity. The reduced let-7i miRNA expression led to a decline in IL-2 levels which contributes to CD4(+) T cells death. PMID: 27145859
    23. IL-2 and IL-6 work together to enhance influenza-specific CD8 T cell generation responding to live influenza virus in aged mice and humans PMID: 27322555
    24. the aim of the current review article is to determine the roles of IL-2 IL-2/IL-2R interaction in polyoma BK virus reactivation and PBK associated nephropathy complications. PMID: 27718431
    25. Modulation of IL-2, IL-4, IFN-gamma and/or TNF-alpha levels, or inhibitors of Erk1/2 or S6K1 may be a new approach to prevent BAFF-induced aggressive B-cell malignancies. PMID: 27235588
    26. Our results show that the frequency of Tregs is altered in a large cohort of long-term T1D patients, a profound decrease in CD25 expression and altered IL-2 signaling are typical features of Tregs populations in long-term diabetic patients and their relatives. PMID: 27560779
    27. a role for circulating IL-2 in liver dysfunction and propose that a combined assessment of AST/ALT in conjunction with IL-2 at the early stages of symptomatic DENV infection may be useful to predict the severe forms of dengue. PMID: 27155816
    28. Lymphocytes incubated in the presence of IL-2 lose the capacity for chemotaxis but acquire antitumor activity PMID: 28429264
    29. the central biological role of the novel IL-2-R/Lck/PLCgamma/PKCtheta;/alphaPIX/Rac1/PYGM signalling pathway is directly related to the control of fundamental cellular processes such as T cell migration and proliferation. PMID: 27519475
    30. F42K can circumvent the expansion and negative immunoregulatory effects of highly suppressive ICOS+ Tregs, while promoting NK cell expansion and function. F42K also induces a unique gene expression profile and does not activate many IL2-induced genes, although it has the capacity to activate NK cells and NK cell-associated activation genes, costimulatory molecules, and NK-mediated cytolytic function PMID: 27697858
    31. Chimeric fusion protein of interleukin 2 (IL2) and its receptor interleukin 2 receptor, beta protein (IL2Rbeta) enhances antitumor activity of natural killer NK92 cells. PMID: 28916655
    32. Il2 was not a useful discriminative markers for active tuberculosis among pulmonary tuberculosis suspects. PMID: 27450011
    33. IL-2 and IL-10 could work synergistically to improve the survival, proliferation, and cytotoxicity of activated CD8(+) T cells, an effect suppressible by CD4(+)CD25(+) Treg cells PMID: 28274688
    34. results show that IL-23 accounts for the main aspects of human and murine lupus including the expansion of double negative T cells, decreased IL-2, and increased IL-17 production PMID: 28646040
    35. Report efficient retroviral vector transduction of primary human natural killer cells that were stimulated by a combination of IL-2 and engineered K562 cells expressing membrane-bound IL-21 for cancer immunotherapy. PMID: 28802832
    36. upon ligation of the T-cell antigen receptor (TCR), the TCR associates with and transactivates CXCR4 via phosphorylation of S339-CXCR4 in order to activate a PREX1-Rac1-signaling pathway that stabilizes interleukin-2(IL-2), IL-4, and IL-10 messenger RNA (mRNA) transcripts. PMID: 28694325
    37. IL2 induces disruption of adherens junctions, concomitant with cytoskeletal reorganization, ultimately leading to increased endothelial cell permeability. PMID: 27601468
    38. findings extend understanding of the differential modes of action between IL-2 and IL-15, and highlight how, although sharing the CD122/CD132 receptor, they elicit such different immune actions PMID: 28507024
    39. DNA-PKcs is a potent regulator of IL-2 production in T lymphocytes. PMID: 28750002
    40. Yeast-expressed human IL-2 fusion toxin effectively targetedCD25(+) cutaneous T cell lymphoma. PMID: 28551309
    41. study provides evidence that membrane-coated microvesicles released by apoptotic neutrophils suppress a subset of resting Th cells by downregulating IL-2 and IL-2R expression PMID: 28295230
    42. In T1D, low IL-2 responsiveness was most pronounced in memory T effector cells. Reduced IL-2 responses in memory T effector cells were not rescued by resting, remained lower after activation and proliferation, and were absent in type 2 diabetes. PMID: 28645874
    43. the elevated level of IL-2+ and IL-21+ T cells and a positive correlation between IL-21+ cells with clinical activity index in ulcerative colitis patients may contribute to the pathogenesis of disease. PMID: 28685527
    44. analysis of the contribution of IL2Rgamma to the dynamic formation of IL2-IL2R complexes PMID: 27195783
    45. lack of local IL-2 enhances regulatory T-cell susceptibility to Fas-mediated apoptosis induced by epithelial cells PMID: 26928938
    46. The IL-2 rs2069762 G allele appeared to be a protective mutation against aplastic anemia, but no significant differences were found in other four IL-2 and Il-8 SNPs studied. PMID: 28268223
    47. Pristimerin inhibits IL-2 induced T cell activation and generation of lymphokine-activated killer cells by disrupting multiple cell signaling pathways induced by IL-2. PMID: 28471123
    48. IL-2 or induced killer cells combination therapy was efficacious in treating NSCLC and improved overall survival. Further analysis of trials having adequate information and data need to be done to confirm these findings. PMID: 27748271
    49. Treatment of memory CD4 T cells with the concentration of kynurenine found in plasma inhibited IL-2 signaling through the production of reactive oxygen species. PMID: 27356894
    50. Ochratoxin A mediates MAPK activation, modulates IL-2 and TNF-alpha mRNA expression and induces apoptosis by mitochondria-dependent and mitochondria-independent pathways in human CD4 positive T-cell lymphoma cell line. PMID: 27193732



  • 相关疾病:
    A chromosomal aberration involving IL2 is found in a form of T-cell acute lymphoblastic leukemia (T-ALL). Translocation t(4;16)(q26;p13) with involves TNFRSF17.
  • 亚细胞定位:
  • 蛋白家族:
    IL-2 family
  • 数据库链接:

    HGNC: 6001

    OMIM: 147680

    KEGG: hsa:3558

    STRING: 9606.ENSP00000226730

    UniGene: Hs.89679