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|Antigen||Interleukin 2 (IL2) ELISA Kits|
|Reactivity||Rat (Rattus) Alternatives|
Kits with alternative reactivity to:
|Method Type||Sandwich ELISA|
|Detection Range||0.1-30 ng/mL|
|Minimum Detection Limit||0.1 ng/mL|
|2 references available|
|Supplier||Log in to see|
Product Details IL2 ELISA KitTarget details Application Details Handling ProductDetails: References for IL2 Kit (ABIN625202) Images
|Purpose||Rat IL-2 ELISA Kit for cell culture supernatants, plasma, and serum samples.|
|Sample Type||Plasma, Cell Culture Supernatant, Serum|
|Specificity||This ELISA kit shows no cross-reactivity with the following cytokines tested: rat CINC-2, CINC-3, CNTF, Fractalkine, IL-1 alpha, IL-1 beta, IL-4, IL-6, IL-10, GM-CSF, IFN-gamma, Leptin, Lix, MCP-1, MIP-3 alpha, beta- NGF, TIMP-1, TNF-alpha.|
|Cross-Reactivity (Details)||This ELISA kit shows no cross-reactivity with the following cytokines tested: rat CINC-2, CINC-3, CNTF, Fractalkine, IL-1alpha, IL-1beta, IL-4, IL-6, IL-10, GM-CSF, IFN-gamma, Leptin, Lix, MCP-1, MIP-3alpha, beta- NGF, TIMP-1, TNF-alpha.|
|Material not included||
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|Alternative Name||IL-2 (IL2 ELISA Kit Abstract)|
|Background||Interleukin-2 (IL-2) (T-cell growth factor) (TCGF)|
|Research Area||Cytokines, Immunology, Virology, Inflammation, Cancer|
|Pathways||JAK-STAT Signaling, Regulation of Leukocyte Mediated Immunity, Positive Regulation of Immune Effector Process, Production of Molecular Mediator of Immune Response, Activated T Cell Proliferation|
Application DetailsProduct Details IL2 ELISA Kit Target details Handling ProductDetails: References for IL2 Kit (ABIN625202) Images back to top
|Application Notes||Recommended Dilution for serum and plasma samples2 fold|
|Sample Volume||100 μL|
1. Bring all reagents and samples to room temperature (18 - 25 °C) before use.
2. Sample dilution: Assay Diluent A (Item D) should be used for dilution of serum/plasma samples. 1x Assay Diluent B should be used for dilution of cell culture supernates. Suggested dilution for normal serum/plasma: 2 fold*. * Please note that levels of the target protein may vary between different specimens. Optimal dilution factors for each sample must be determined by the investigator.
3. Assay Diluent B should be diluted 5-fold with deionized or distilled water before use.
4. Preparation of standard: Briefly spin the vial of Item C and then add 400 µL Assay Diluent A (for serum/plasma samples) or 1x Assay Diluent B (for cell culture supernates) into Item C vial to prepare a 100 ng/mL standard. Dissolve the powder thoroughly by a gentle mix. Add 150 µL IL-2 standard (100 ng/mL) from the vial of Item C, into a tube with 350 µL Assay Diluent A or 1x Assay Diluent B to prepare a 30 ng/mL standard solution. Pipette 400 µL Assay Diluent A or 1x Assay Diluent B into each tube. Use the 30 ng/mL standard solution to produce a dilution series . Mix each tube thoroughly before the next transfer. Assay Diluent A or 1x Assay Diluent B serves as the zero standard (0 ng/mL). 200 µL 150 µL standard + 350 µL 200myl 200 µL 200 µL 200 µL 30 10 3.33 1.11 0.37 0.12 0 ng/mL ng/mL ng/mL ng/mL ng/mL ng/mL ng/mL
5. If the Wash Concentrate (20x) (Item B) contains visible crystals, warm to room temperature and mix gently until dissolved. Dilute 20 ml of Wash Buffer Concentrate into deionized or distilled water to yield 400 ml of 1x Wash Buffer.
6. Briefly spin the Detection Antibody vial (Item F) before use. Add 100 µL of 1x Assay Diluent B into the vial to prepare a detection antibody concentrate. Pipette up and down to mix gently (the concentrate can be stored at 4 °C for 5 days). The detection antibody concentrate should be diluted 80-fold with 1x Assay Diluent B and used in step 4 of Part VI Assay Procedure.
7. Briefly spin the HRP-Streptavidin concentrate vial (Item G) and pipette up and down to mix gently before use. HRP-Streptavidin concentrate should be diluted 500-fold with 1x Assay Diluent B. For example: Briefly spin the vial (Item G) and pipette up and down to mix gently . Add 20 µL of HRP-Streptavidin concentrate into a tube with 10 ml 1x Assay Diluent B to prepare a 500-fold diluted HRP- Streptavidin solution (don't store the diluted solution for next day use). Mix well.
1. Bring all reagents and samples to room temperature (18 - 25 °C) before use. It is recommended that all standards and samples be run at least in duplicate.
2. Add 100 µL of each standard (see Reagent Preparation step 2) and sample into appropriate wells. Cover well and incubate for 2.5 hours at room temperature or over night at 4 °C with gentle shaking.
3. Discard the solution and wash 4 times with 1x Wash Solution. Wash by filling each well with Wash Buffer (300 myl) using a multi-channel pipette or autowasher. Complete removal of liquid at each step is essential to good performance. After the last wash, remove any remaining Wash Buffer by aspirating or decanting. Invert the plate and blot it against clean paper towels.
4. Add 100 µL of 1x prepared biotinylated antibody (Reagent Preparation step 6) to each well. Incubate for 1 hour at room temperature with gentle shaking.
5. Discard the solution. Repeat the wash as in step
6. Add 100 µL of prepared Streptavidin solution (see Reagent Preparation step 7) to each well. Incubate for 45 minutes at room temperature with gentle shaking.
7. Discard the solution. Repeat the wash as in step
8. Add 100 µL of TMB One-Step Substrate Reagent (Item H) to each well. Incubate for 30 minutes at room temperature in the dark with gentle shaking.
9. Add 50 µL of Stop Solution (Item I) to each well. Read at 450 nm immediately.
|Calculation of Results||
Calculate the mean absorbance for each set of duplicate standards, controls and samples, and subtract the average zero standard optical density. Plot the standard curve on log-log graph paper or using Sigma plot software, with standard concentration on the x-axis and absorbance on the y-axis. Draw the best-fit straight line through the standard points.
Typical Data: These standard curves are for demonstration only. A standard curve must be run with each assay. Assay Diluent A Rat IL-2 concentration (ng/mL) O D =4 50 n m 0.001 0.01 0.1 1 10 0.01 0.1 1 10 100 Assay Diluent B Rat IL-2 concentration (ng/mL) O D =4 50 n m 0.001 0.01 0.1 1 10 0.01 0.1 1 10 100
Sensitivity: The minimum detectable dose of IL-2 is typically less than 0.1 ng/mL.
Recovery: Recovery was determined by spiking Rat IL-2 into serum, plasma and cell culture media. Mean recoveries are as follows: Sample Type Average % Recovery Range ( %) Serum 98.73 88-109 Plasma 80.35 70-91 Cell culture media 78.52 67-89
Linearity: Sample Type Serum Plasma Cell Culture Media 1:2 Average % of Expected 87.7 88.3 89.4 Range ( %) 78-97 84-103 79-98 1:4 Average % of Expected 86.5 86.5 88.4 Range ( %) 77-97 80-101 78-98
Reproducibility: Intra-Assay: CV<10 % Inter-Assay: CV<12 %
|Assay Precision||Intra-Assay: CV< 10 % Inter-Assay: CV< 12 %|
|Restrictions||For Research Use only|
HandlingProduct Details IL2 ELISA Kit Target details Application Details ProductDetails: References for IL2 Kit (ABIN625202) Images back to top
|Handling Advice||Avoid repeated freeze-thaw cycles.|
|Storage Comment||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.|
|Expiry Date||6 months|
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|Product cited in:||
Choudhary, Sheela Devi: "Longer period of oral administration of aspartame on cytokine response in Wistar albino rats." in: Endocrinologi?a y nutricio?n : o?rgano de la Sociedad Espan?ola de Endocrinologi?a y Nutricio?n, Vol. 62, Issue 3, pp. 114-22, 2015
Mohanty, Swamy, Middha, Prakash, Subbanarashiman, Maniyam et al.: "Analgesic, Anti- inflammatory, Anti- lipoxygenase Activity and Characterization of Three Bioactive Compounds in the Most Active Fraction of Leptadenia reticulata (Retz.)Wight & Arn. - A Valuable ..." in: Iranian journal of pharmaceutical research : IJPR, Vol. 14, Issue 3, pp. 933-42, 2015
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