Rat IL-2 Quantikine ELISA Kit

R&D Systems | Catalog # R2000

R&D Systems
100% Guarantee

Key Product Details

Assay Length

4.5 hours

Sample Type & Volume Required Per Well

Cell Culture Supernates (50 µL), Serum (25 µL), EDTA Plasma (25 µL), Heparin Plasma (25 µL)

Sensitivity

15 pg/mL

Assay Range

31.2-2000 pg/mL (Cell Culture Supernates, Serum, EDTA Plasma, Heparin Plasma)
View all IL-2 ELISA Kits »

Product Summary for Rat IL-2 Quantikine ELISA Kit

The Quantikine Rat IL-2 Immunoassay is a 4.5 hour solid phase ELISA designed to measure rat IL-2 levels in cell culture supernates, serum, and plasma. It contains E. coli-expressed recombinant rat IL-2 and antibodies raised against the recombinant factor. This immunoassay has been shown to quantitate the recombinant factor accurately. Results obtained using natural rat IL-2 showed dose response curves that were parallel to the standard curves obtained using the Quantikine kit standards. These results indicate that this kit can be used to determine relative mass values for natural rat IL-2.

Product Specifications

Assay Type

Solid Phase Sandwich ELISA

Format

96-well strip plate

Measurement

Quantitative ELISA

Detection Method

Colorimetric - 450nm (TMB)

Conjugate

HRP

Species

Rat

Specificity

Natural and recombinant rat IL-2

Cross-reactivity

< 0.5% cross-reactivity observed with available related molecules. < 50% cross-species reactivity observed with species tested.

Interference

No significant interference observed with available related molecules.

Precision

Intra-Assay Precision (Precision within an assay) Three samples of known concentration were tested on one plate to assess intra-assay precision.

Inter-Assay Precision (Precision between assays) Three samples of known concentration were tested in separate assays to assess inter-assay precision.

Cell Culture Supernates, EDTA Plasma, Heparin Plasma, Serum

Intra-Assay Precision Inter-Assay Precision
Sample 1 2 3 1 2 3
n 20 20 20 20 20 20
Mean (pg/mL) 130 478 1491 139 495 1550
Standard Deviation 4.2 10.5 31.9 13.8 30.8 85.4
CV% 3.2 2.2 2.1 9.9 6.2 5.5

Recovery for Rat IL-2 Quantikine ELISA Kit

The recovery of rat IL-2 spiked to three levels throughout the range of the assay in various matrices was evaluated.

Sample Type Average % Recovery Range %
Cell Culture Supernates (n=8) 110 93-120
EDTA Plasma (n=4) 102 90-117
Heparin Plasma (n=4) 100 92-116
Serum (n=14) 96 83-114

Linearity

To assess the linearity of the assay, four or more samples containing and/or spiked with various concentrations of rat IL-2 were diluted with Calibrator Diluent and then assayed.

Rat IL-2 ELISA Linearity

Scientific Data Images for Rat IL-2 Quantikine ELISA Kit

Rat IL-2 ELISA Standard Curve

Rat IL-2 ELISA Standard Curve

Preparation and Storage

Shipping

The product is shipped with polar packs. Upon receipt, store it immediately at the temperature recommended below.

Stability & Storage

Store the unopened product at 2 - 8 °C. Do not use past expiration date.

Background: IL-2

IL-2 (Interleukin-2) is a critical cytokine in T cell biology. It promotes T cell activation and expansion, the development, maintenance and function of regulatory T cells (Treg), and the differentiation of CD8+ T cells into terminal effector cells and  memory cells. IL-2 signals through a receptor complex composed of CD25/IL-2 R alpha, IL-2 R beta, and the Common gamma Chain (gamma c). IL-2 R beta is also a component of the IL-15 receptor complex. Gamma c is also a signaling subunit in the receptors for IL-4, -7, -9, -15, and -21.

Long Name

Interleukin 2

Alternate Names

Aldesleukin, IL2, Proleukin, TCGF

Entrez Gene IDs

3558 (Human); 16183 (Mouse); 116562 (Rat); 396868 (Porcine); 280822 (Bovine); 403989 (Canine); 100034204 (Equine); 751114 (Feline); 100302458 (Rabbit)

Gene Symbol

IL2

Additional IL-2 Products

Product Documents for Rat IL-2 Quantikine ELISA Kit

Certificate of Analysis

To download a Certificate of Analysis, please enter a lot or batch number in the search box below.

Note: Certificate of Analysis not available for kit components.

Product Specific Notices for Rat IL-2 Quantikine ELISA Kit

For research use only

⚠ WARNING: This product can expose you to chemicals including N,N-Dimethylforamide, which is known to the State of California to cause cancer. For more information, go to www.P65Warnings.ca.gov.

Citations for Rat IL-2 Quantikine ELISA Kit

Customer Reviews for Rat IL-2 Quantikine ELISA Kit

There are currently no reviews for this product. Be the first to review Rat IL-2 Quantikine ELISA Kit and earn rewards!

Have you used Rat IL-2 Quantikine ELISA Kit?

Submit a review and receive an Amazon gift card!

$25/€18/£15/$25CAN/¥2500 Yen for a review with an image

$10/€7/£6/$10CAN/¥1110 Yen for a review without an image

Submit a review
Amazon Gift Card

Protocols

View specific protocols for Rat IL-2 Quantikine ELISA Kit (R2000):

Refer to the product for complete assay procedure.

Bring all reagents and samples to room temperature before use. It is recommended that all samples, standards, and controls be assayed in duplicate.
  1.   Prepare all reagents, standard dilutions, and samples as directed in the product insert.
  2.   Remove excess microplate strips from the plate frame, return them to the foil pouch containing the desiccant pack, and reseal.
    3. 50 µL Assay Diluent
  3.   Add 50 µL of Assay Diluent to each well.
    4. 50 µL Standard, Control, or Sample
  4.   Add 50 µL of Standard, Control, or sample to each well. Cover with a plate sealer, and incubate at room temperature for 2 hours.
  5.   Aspirate each well and wash, repeating the process 4 times for a total of 5 washes.
    6. 100 µL Conjugate
  6.   Add 100 µL of Conjugate to each well. Cover with a new plate sealer, and incubate at room temperature for 2 hours.
  7.   Aspirate and wash 5 times.
    8. 100 µL Substrate Solution
  8.   Add 100 µL Substrate Solution to each well. Incubate at room temperature for 30 minutes. PROTECT FROM LIGHT.
    9. 100 µL Stop Solution
  9.   Add 100 µL of Stop Solution to each well. Read at 450 nm within 30 minutes. Set wavelength correction to 540 nm or 570 nm.

Find general support by application which include: protocols, troubleshooting, illustrated assays, videos and webinars.

FAQs

No product specific FAQs exist for this product.

View all FAQs for ELISA Kits