Recombinant Human IL-2 Protein

Name: Recombinant Human IL-2 Protein
Brand: Beta LifeScience
SKU: BL-1714NP
Availability: InStock

BL-1714NP: Greater than 95% as determined by reducing SDS-PAGE. (QC verified)

Collections: Antibody / cell therapy targets, Antibody therapeutic / adc target proteins, Cytokines, Cytokines and growth factors, Interleukins and receptors, Recombinant interleukin-2 (il-2) proteins, Recombinant proteins

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Product Overview

Description	Recombinant Human Interleukin-2 is produced by our E.coli expression system and the target gene encoding Ala21-Thr153 is expressed.
Accession	P60568
Synonym	Interleukin-2; IL-2; T-Cell Growth Factor; TCGF; Aldesleukin; IL2
Gene Background	Interleukin-2(IL-2) is an interleukin, a type of cytokine signaling molecule in the immune system，belongs to the IL-2 family. It is a powerful immunoregulatory lymphokine produced by T-cells in response to antigenic or mitogenic stimulation. IL-2/IL-2R signaling is required for T-cell proliferation and other fundamental functions that are essential for the immune response. IL-2 stimulates growth and differentiation of B-cells, NK cells, lymphokine-activated killer cells, monocytes, macrophages and oligodendrocytes.
Molecular Mass	15.5 KDa
Apmol Mass	14 KDa, reducing conditions
Formulation	Lyophilized from a 0.2 μm filtered solution of 10mM sodium citrate, pH 4.0.
Endotoxin	Less than 0.001 ng/µg (0.01 EU/µg) as determined by LAL test.
Purity	Greater than 95% as determined by reducing SDS-PAGE. (QC verified)
Biological Activity	Biologically active. Please contact us to obtain bioactivity data.
Reconstitution	Always centrifuge tubes before opening.Do not mix by vortex or pipetting.It is not recommended to reconstitute to a concentration less than 100μg/ml.Dissolve the lyophilized protein in distilled water.Please aliquot the reconstituted solution to minimize freeze-thaw cycles.
Storage	Lyophilized protein should be stored at ≤ -20°C, stable for one year after receipt.Reconstituted protein solution can be stored at 2-8°C for 2-7 days.Aliquots of reconstituted samples are stable at ≤ -20°C for 3 months.
Shipping	The product is shipped at ambient temperature.Upon receipt, store it immediately at the temperature listed below.
Usage	For Research Use Only

Target Details

Target Function	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.
Subcellular Location	Secreted.
Protein Families	IL-2 family
Database References	HGNC: 6001 OMIM: 147680 KEGG: hsa:3558 STRING: 9606.ENSP00000226730 UniGene: Hs.89679
Associated Diseases	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.

Gene Functions References

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
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
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
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
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
interleukin-2 (IL-2) is a non-pancreatic autoimmune target in type 1 diabetes PMID: 27708334
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
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
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
The main mechanism of elimination of mesenchymal stromal cells is cytotoxicity of NK cells that depended on IL-2 production. PMID: 29313232
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
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
Study found that in SLE patients lymphocyte production of IL-2 did not decrease when compared with that of normal subjects. PMID: 29911835
Peripheral blood Tregs failed to effectively utilize IL-2 and had relatively little STAT5 phosphorylation in active ankylosing spondylitis. PMID: 27901054
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
CD45 is a regulator of IL-2 synergy in the NKG2D-mediated activation of immature human NK cells PMID: 28655861
genetic polymorphism is associated with increased susceptibility to chronic spontaneous urticaria in Iran PMID: 28159384
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
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
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
Overrepresentation of certain alleles, genotypes and haplotypes in IL-2 gene in febrile seizure patients could predispose individuals to this disease PMID: 28843235
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
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
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
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
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
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
Lymphocytes incubated in the presence of IL-2 lose the capacity for chemotaxis but acquire antitumor activity PMID: 28429264
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
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
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
Il2 was not a useful discriminative markers for active tuberculosis among pulmonary tuberculosis suspects. PMID: 27450011
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
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
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
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
IL2 induces disruption of adherens junctions, concomitant with cytoskeletal reorganization, ultimately leading to increased endothelial cell permeability. PMID: 27601468
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
DNA-PKcs is a potent regulator of IL-2 production in T lymphocytes. PMID: 28750002
Yeast-expressed human IL-2 fusion toxin effectively targetedCD25(+) cutaneous T cell lymphoma. PMID: 28551309
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
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
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
analysis of the contribution of IL2Rgamma to the dynamic formation of IL2-IL2R complexes PMID: 27195783
lack of local IL-2 enhances regulatory T-cell susceptibility to Fas-mediated apoptosis induced by epithelial cells PMID: 26928938
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
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
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
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
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

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Proteins are sensitive to heat, and freeze-drying can preserve the activity of the majority of proteins. It improves protein stability, extends storage time, and reduces shipping costs. However, freeze-drying can also lead to the loss of the active portion of the protein and cause aggregation and denaturation issues. Nonetheless, these adverse effects can be minimized by incorporating protective agents such as stabilizers, additives, and excipients, and by carefully controlling various lyophilization conditions.

Commonly used protectant include saccharides, polyols, polymers, surfactants, some proteins and amino acids etc. We usually add 8% (mass ratio by volume) of trehalose and mannitol as lyoprotectant. Trehalose can significantly prevent the alter of the protein secondary structure, the extension and aggregation of proteins during freeze-drying process; mannitol is also a universal applied protectant and fillers, which can reduce the aggregation of certain proteins after lyophilization.

Our protein products do not contain carrier protein or other additives (such as bovine serum albumin (BSA), human serum albumin (HSA) and sucrose, etc., and when lyophilized with the solution with the lowest salt content, they often cannot form A white grid structure, but a small amount of protein is deposited in the tube during the freeze-drying process, forming a thin or invisible transparent protein layer.

Reminder: Before opening the tube cap, we recommend that you quickly centrifuge for 20-30 seconds in a small centrifuge, so that the protein attached to the tube cap or the tube wall can be aggregated at the bottom of the tube. Our quality control procedures ensure that each tube contains the correct amount of protein, and although sometimes you can't see the protein powder, the amount of protein in the tube is still very precise.

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