Use code ELISA25-262 for 25% off all ELISAs through November.
Product Description
Specifications
| Size | 1 Plate Kit, 2 Plate Kit, 5 Plate Kit |
| Species | Human |
| Sensitivity | 4 pg/ml Need more sensitivity? Check out the new NexaTag® kit for this target. Still not enough? Then your answer is our Ultrasensitive Biomarker Testing Service powered by Simoa™ technology. |
| Detection Range | 4 pg/ml - 1500 pg/ml |
| Specificity | This ELISA kit shows no cross-reactivity with any of the cytokines tested: Human Angiogenin, BDNF, BLC, ENA-78, FGF-4, IL-1 alpha, IL-1 beta, IL-3, IL-4, IL-5, IL-6, IL-7, IL-8, IL-9, IL-10, IL-11, IL-12 p70, IL-12 p40, IL-13, IL-15, I-309, IP-10, G-CSF, GM-CSF, IFN-gamma, MCP- 1, MCP-2, MCP-3, MDC, MIP-1 alpha, MIP-1 beta, MIP-1 delta, PARC, PDGF, RANTES, SCF, TARC, TGF-beta, TIMP-1, TIMP-2, TNF-alpha, TNF-beta, TPO, VEGF. |
| Compatible Sample Types | Cell Culture Supernatants, Plasma, Serum, Tissue Lysates, Cell Lysates |
| Recommended Dilution (Serum/Plasma) | 2 fold |
| Accession Number | P60568 |
| Gene Id | 3558 |
| Gene Symbols | IL2 |
| Protein Name / Synonyms | Interleukin-2 (IL-2) (T-cell growth factor) (TCGF) (Aldesleukin) |
| Quantitative/Semi-Quantitative | Quantitative |
| Solid Support | 96-well Microplate |
| Design Principle | Sandwich-based |
| Method Of Detection | Colorimetric |
| Research Area | Inflammation, Antibody Drug Development, Protein Therapeutics |
| Shipping Type | Blue ice |
| Storage | ≤-20°C |
| Sample type | Cell Culture Supernatants / Plasma / Serum, Cell and Tissue Lysates |
Target Background
IL-2 is a 15 kDa glycoprotein that is produced by helper T cells to promote immunostimulatory or immunoinhibitory activity depending on target cells. It can activate the cytotoxic function of natural killer cells, T lymphocytes and monocytes to enhance the cytotoxicity of these effector cells. Once secreted IL-2 will bind to neighboring cells that harbor its receptor, IL-2R. The IL-2 receptors couples to JAK tyrosine kinases and activates the STAT5 transcription factors. IL-2 therapy has shown to be effective in patients with autoimmune diseases.
Product Features
Additional Notes
- Strip plates and additional reagents allow for use in multiple experiments
- Quantitative protein detection
- Establishes normal range
- The best products for confirmation of antibody array data
Standard Curves


Spiking & Recovery Results

Linearity Results

Application Notes
Kit Components
- Pre-Coated 96-well Strip Microplate
- Wash Buffer
- Stop Solution
- Assay Diluent(s)
- Lyophilized Standard
- Biotinylated Detection Antibody
- Streptavidin-Conjugated HRP
- TMB One-Step Substrate
Other Materials Required
- Distilled or deionized water
- Precision pipettes to deliver 2 µl to 1 µl volumes
- Adjustable 1-25 µl pipettes for reagent preparation
- 100 µl and 1 liter graduated cylinders
- Tubes to prepare standard and sample dilutions
- Absorbent paper
- Microplate reader capable of measuring absorbance at 450nm
- Log-log graph paper or computer and software for ELISA data analysis
Protocol Outline
- Prepare all reagents, samples and standards as instructed in the manual.
- Add 100 µl of standard or sample to each well.
- Incubate 2.5 h at RT or O/N at 4°C.
- Add 100 µl of prepared biotin antibody to each well.
- Incubate 1 h at RT.
- Add 100 µl of prepared Streptavidin solution to each well.
- Incubate 45 min at RT.
- Add 100 µl of TMB One-Step Substrate Reagent to each well.
- Incubate 30 min at RT.
- Add 50 µl of Stop Solution to each well.
- Read at 450 nm immediately.
Storage/Stability
The entire kit may be stored at -20°C for up to 1 year from the date of shipment. Avoid repeated freeze-thaw cycles. The kit may be stored at 4°C for up to 6 months. For extended storage, it is recommended to store at -80°C.
Customize This Human IL-2 ELISA
We manufacture our ELISAs in-house, so we can build a custom version for your study.
- Post-translational modifications (PTMs): Detect modified IL-2 (IL2), including phosphorylation, acetylation, S-nitrosylation, S-acylation, oxidation, lactylation, sumoylation, ubiquitination, nitration, carbamylation, and more
- Sample types: Validation in your matrix using samples you provide, such as CSF, urine, saliva, lysates, or exosomes
- Also available: More sensitive platforms such as Simoa® and NexaTag®, multiplex panels, bulk lots, and other species when suitable reagents exist
Feasibility varies by target and modification, and we’ll tell you upfront what’s achievable.
Learn more about custom ELISA development
documents
Excel (Sandwich-ELISA-Analysis-Tool.xlsm)
citations
Optimizing Zirconium-89 labeling for chimeric antigen receptor T cell PET imaging by comparing desferrioxamine and oxine
- Species:
- Human
- Sample Type:
- Cell Culture Supernatant (co-culture supernatants)
- Year:
- 2026
- Journal Name:
- Scientific Reports
- PubMed ID:
- 42106467
The application of HER2 and CD47 CAR-macrophage in ovarian cancer
- Species:
- Human
- Sample Type:
- THP-1 cell
- Year:
- 2023
- Journal Name:
- Journal of Translational Medicine
Dendritic cell-mimicking scaffolds for ex vivo T cell expansion
- Species:
- Human
- Sample Type:
- T cell
- Year:
- 2022
- Journal Name:
- Bioactive materials
circHMGCS1-016 reshapes immune environment by sponging miR-1236-3p to regulate CD73 and GAL-8 expression in intrahepatic cholangiocarcinoma
- Species:
- Human
- Sample Type:
- Cell Culture Supernatant (supernatants of ICC cell lines); Serum (serum from the peripheral blood of patients with ICC)
- Year:
- 2021
- Journal Name:
- Journal of Experimental & Clinical Cancer Research
- PubMed ID:
- 34526098
RNA N6-Methyladenosine (m6A) Methyltransferase-like 3 Facilitates Tumorigenesis and Cisplatin Resistance of Arecoline-Exposed Oral Carcinoma
- Species:
- Human
- Sample Type:
- oral squamous cell carcinoma (OSCC) tissue
- Year:
- 2022
- Journal Name:
- Cells
Tumor specific cytokine pattern explored in renal cell carcinoma
- Species:
- Human
- Sample Type:
- Serum; Tissue Lysate / Homogenate; Urine
- Year:
- 2026
- Journal Name:
- PLoS ONE
- PubMed ID:
- 42809553
Bispecific T-cell engager (BiTE) immunotherapy of ovarian cancer based on MIL-88A MOF/MC gene delivery system
- Species:
- Human
- Sample Type:
- Conditioned Media (T cells stimulatied with anti-CD3 and anti-Epcam BITE)
- Year:
- 2020
Alterations in CD8+ Tregs, CD56+ Natural Killer Cells and IL-10 Are Associated With Invasiveness of Nonfunctioning Pituitary Adenomas (NFPAs)
- Species:
- Human
- Sample Type:
- Serum (NFPA patients)
- Year:
- 2021
- Journal Name:
- Pathology oncology research : POR
- PubMed ID:
- 34257554
IL-17 Biological Effects and Signaling Mechanisms in Human Leukemia U937 Cells
- Species:
- Human
- Sample Type:
- Tissue Lysate / Homogenate (tissue culture proteins)
- Year:
- 2021
- Journal Name:
- IntechOpen eBooks
The Effect of Cannabis on the Clinical and Cytokine Profiles in Patients with Multiple Sclerosis
- Species:
- Human
- Sample Type:
- Serum (MS patients, cannabis users vs non-users)
- Year:
- 2021
- Journal Name:
- Multiple sclerosis international
- PubMed ID:
- 33628507
















