IL-12 (Interleukin-12) is a secreted heterodimeric cytokine that contains disulfide-linked p35 and p40 subunits. The p40 subunit is also a subunit of the heterodimeric IL-23. IL-12 is produced by macrophages, dendritic cells, monocytes, Langerhans cells, neutrophils, keratinocytes, microglia, and non-germinal center B cells. It acts through a receptor complex that contains the ligand binding IL-12 R alpha 1 and the signal transducing IL-12 R alpha 2. IL-12 can enhance cytotoxic activity and induce Interferon-gamma production in NK cells, T cells and dendritic epidermal T cells. In conjunction with IL-23 and IL-27, IL-12 promotes the development of a Th1 immune response.
Human IL-12 p70 DuoSet ELISA
R&D Systems | Catalog # DY1270
Key Product Details
Assay Type
Assay Range
Sample Type
Note: Diluents for complex matrices, such as serum and plasma, should be evaluated prior to use in this DuoSet
Reactivity
Human IL-12 p70 DuoSet ELISA Features
- Optimized capture and detection antibody pairings with recommended concentrations save lengthy development time
- Development protocols are provided to guide further assay optimization
- Assay can be customized to your specific needs
- Economical alternative to complete kits
Product Summary for Human IL-12 p70 DuoSet ELISA
This DuoSet ELISA Development kit contains the basic components required for the development of sandwich ELISAs to measure natural and recombinant human IL-12 p70. The suggested diluent is suitable for the analysis of most cell culture supernate samples. Diluents for complex matrices, such as serum and plasma, should be evaluated prior to use in this DuoSet.
Product Specifications
Assay Format
Sample Volume Required
Detection Method
Conjugate
Specificity
Label
Scientific Data Images for Human IL-12 p70 DuoSet ELISA
Human IL-12 p70 ELISA Standard Curve
Kit Contents for Human IL-12 p70 DuoSet ELISA
- Capture Antibody
- Detection Antibody
- Recombinant Standard
- Streptavidin conjugated to horseradish-peroxidase (Streptavidin-HRP)
Other Reagents Required
DuoSet Ancillary Reagent Kit 2 (5 plates): (Catalog # DY008) containing 96 well microplates, plate sealers, substrate solution, stop solution, plate coating buffer (PBS), wash buffer, and Reagent Diluent Concentrate 2.
Normal Goat Serum: (Catalog # DY005)
The components listed above may be purchased separately:
PBS: (Catalog # DY006), or 137 mM NaCl, 2.7 mM KCl, 8.1 mM Na2HPO4, 1.5 mM KH2PO4, pH 7.2 - 7.4, 0.2 µm filtered
Wash Buffer: (Catalog # WA126), or 0.05% Tween® 20 in PBS, pH 7.2-7.4
Reagent Diluent: (Catalog # DY995), or 1% BSA in PBS, pH 7.2-7.4, 0.2 µm filtered
Substrate Solution: 1:1 mixture of Color Reagent A (H2O2) and Color Reagent B (Tetramethylbenzidine) (Catalog # DY999)
Stop Solution: 2 N H2SO4 (Catalog # DY994)
Microplates: R&D Systems (Catalog # DY990)
Plate Sealers: ELISA Plate Sealers (Catalog # DY992)
Normal Goat Serum: (Catalog # DY005)
Preparation and Storage
Shipping
Stability & Storage
Background: IL-12 p70
Long Name
Alternate Names
Gene Symbol
Additional IL-12 p70 Products
Product Documents for Human IL-12 p70 DuoSet ELISA
Product Specific Notices for Human IL-12 p70 DuoSet ELISA
For research use only
Citations for Human IL-12 p70 DuoSet ELISA
Customer Reviews for Human IL-12 p70 DuoSet ELISA (10)
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Customer Images
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Sample Tested: EDTA PlasmaVerified Customer | Posted 07/18/2024How hard can it be for the company to include goat serum in the kit rather than sell it separately? It’s not a very common reagent, and other human cytokine kits don’t use it at all.Bio-Techne ResponseThank you for reviewing our product. We are sorry to hear that this product did not perform as expected. We have been in touch with the customer to resolve this issue according to our Product Guarantee and to the customer’s satisfaction.
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Sample Tested: SerumVerified Customer | Posted 11/15/2022The standard curve was good, but the human serum samples were all undetectable.
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Sample Tested: Cell culture supernatantVerified Customer | Posted 05/12/2021
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Sample Tested: THP-1 human acute monocytic leukemia cell lineVerified Customer | Posted 02/22/2018
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Sample Tested: EDTA PlasmaVerified Customer | Posted 01/18/2018
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Sample Tested: SerumVerified Customer | Posted 11/21/2017We used human serum at a dilution of 1:1. The test was good and worked well, but IL-12p70 was detectable in only 15% of our patients, in our conditions.
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Sample Tested: Cell culture supernatantVerified Customer | Posted 11/02/2017
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Sample Tested: Human cellsVerified Customer | Posted 06/02/2016High Quality Elisa we use for our release testing
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Sample Tested: Serum and PlasmaVerified Customer | Posted 04/22/2016Human serum and plasma samples are not possible to run with this kit. All samples are lower than the lowest standard.
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Sample Tested: Dendritic cellsSpecies: HumanVerified Customer | Posted 10/26/2015Standard curve is shown. <br />Buffer: kit dilution buffer<br />Dilution: 1/100
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Protocols
View specific protocols for Human IL-12 p70 DuoSet ELISA (DY1270):
GENERAL ELISA PROTOCOL
Plate Preparation
- Dilute the Capture Antibody to the working concentration in PBS without carrier protein. Immediately coat a 96-well microplate with 100 μL per well of the diluted Capture Antibody. Seal the plate and incubate overnight at room temperature.
- Aspirate each well and wash with Wash Buffer, repeating the process two times for a total of three washes. Wash by filling each well with Wash Buffer (400 μL) using a squirt bottle, manifold dispenser, or autowasher. Complete removal of liquid at each step is essential for good performance. After the last wash, remove any remaining Wash Buffer by aspirating or by inverting the plate and blotting it against clean paper towels.
- Block plates by adding 300 μL Reagent Diluent to each well. Incubate at room temperature for a minimum of 1 hour.
- Repeat the aspiration/wash as in step 2. The plates are now ready for sample addition.
Assay Procedure
- Add 100 μL of sample or standards in Reagent Diluent, or an appropriate diluent, per well. Cover with an adhesive strip and incubate 2 hours at room temperature.
- Repeat the aspiration/wash as in step 2 of Plate Preparation.
- Add 100 μL of the Detection Antibody, diluted in Reagent Diluent with NGS, to each well. Cover with a new adhesive strip and incubate 2 hours at room temperature.
- Repeat the aspiration/wash as in step 2 of Plate Preparation.
- Add 100 μL of the working dilution of Streptavidin-HRP to each well. Cover the plate and incubate for 20 minutes at room temperature. Avoid placing the plate in direct light.
- Repeat the aspiration/wash as in step 2.
- Add 100 μL of Substrate Solution to each well. Incubate for 20 minutes at room temperature. Avoid placing the plate in direct light.
- Add 50 μL of Stop Solution to each well. Gently tap the plate to ensure thorough mixing.
- Determine the optical density of each well immediately, using a microplate reader set to 450 nm. If wavelength correction is available, set to 540 nm or 570 nm. If wavelength correction is not available, subtract readings at 540 nm or 570 nm from the readings at 450 nm. This subtraction will correct for optical imperfections in the plate. Readings made directly at 450 nm without correction may be higher and less accurate.
Find general support by application which include: protocols, troubleshooting, illustrated assays, videos and webinars.
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