Mouse IL-2sR alpha/CD25 ELISA Kit (MOES01490)

SKU:
MOES01490
€549

Description

ELISA Kit Technical ManualMSDS

Mouse IL2sR alpha/CD25 (Soluble Interleukin-2 Receptor alpha chain) ELISA Kit

This ELISA kit uses Sandwich-ELISA as the method. The micro ELISA plate provided in this kit has been pre-coated with an antibody specific to Mouse IL2sR alpha/CD25 . Standards or samples are added to the appropriate micro ELISA plate wells and combined with the specific antibody. Then a biotinylated detection antibody specific for Mouse IL2sR alpha/CD25 and Avidin-Horseradish Peroxidase (HRP) conjugate are added to each micro plate well successively and incubated. Free components are washed away. The substrate solution is added to each well. Only those wells that contain Mouse IL2sR alpha/CD25, biotinylated detection antibody and Avidin-HRP conjugate will appear blue in color. The enzyme-substrate reaction is terminated by adding Stop Solution and the color turns yellow. The optical density (OD) is measured spectrophotometrically at a wavelength of 450 nm ± 2 nm. The OD value is proportional to the concentration of Mouse IL2sR alpha/CD25. The concentration of Mouse IL2sR alpha/CD25 in samples can be calculated by comparing the OD of the samples to the standard curve.

Assay typeSandwich
Format96T
Assay time4.5h
ReactivityMouse
Detection MethodColormetric
Detection Range78.13-5000 pg/mL
Sensitivity46.88 pg/mL
Sample Volume Required Per Well100uL
Sample TypeSerum, plasma and other biological fluids

Specificity

This kit recognizes Mouse IL2sR alpha/CD25 ELISA Kit in samples. No significant cross-reactivity or interference between Mouse IL2sR alpha/CD25 ELISA Kit and analogues was observed.

Typical Data

As the OD values of the standard curve may vary according to the conditions of the actual assay performance (e.g. operator, pipetting technique, washing technique or temperature effects), the operator should establish a standard curve for each test. Typical standard curve and data is provided below for reference only.

Concentration
(pg/mL)
O.D Average Corrected
50002.583
2.621
2.6022.515
25001.662
1.72
1.6911.604
12501.022
1
1.0110.924
6250.472
0.508
0.490.403
312.50.291
0.287
0.2890.202
156.250.204
0.188
0.1960.109
78.130.134
0.15
0.1420.055
00.082
0.092
0.087--

Precision

Intra-assay Precision (Precision within an assay): 3 samples with low, mid range and high level Mouse IL2sR alpha/CD25 ELISA Kit were tested 20 times on one plate, respectively.

Inter-assay Precision (Precision between assays): 3 samples with low, mid range and high level Mouse IL2sR alpha/CD25 ELISA Kit were tested on 3 different plates, 20 replicates in each plate.

Intra-assay Precision Inter-assay Precision
Sample123123
n202020202020
Mean (pg/mL)246.98579.842015.75247.76539.701990.30
Standard deviation17.0225.8695.5514.2730.82103.50
C V (%)6.894.464.745.765.715.20

Recovery

The recovery of Mouse IL2sR alpha/CD25 ELISA Kit spiked at three different levels in samples throughout the range of the assay was evaluated in various matrices.

Sample Type Range (%) Average Recovery (%)
Serum (n=5)85-9792
EDTA plasma (n=5)94-10999
Cell culture media (n=5)86-9992

Linearity

Samples were spiked with high concentrations of Mouse IL2sR alpha/CD25 ELISA Kit and diluted with Reference Standard & Sample Diluent to produce samples with values within the range of the assay.

Serum (n=5) EDTA plasma (n=5) Cell culture media (n=5)
1:2Range (%)94-10889-10496-109
Average (%)9995103
1:4Range (%)92-10683-9589-101
Average (%)988995
1:8Range (%)87-9882-9283-93
Average (%)928788
1:16Range (%)91-10485-9883-94
Average (%)979288

Kit Components & Storage

An unopened kit can be stored at 4'C for 1 month. If the kit is not used within 1 month, store the items separately according to the following conditions once the kit is received.

Item Specifications Storage
Micro ELISA Plate(Dismountable)8 wells X12 strips-20'C, 6 months
Reference Standard2 vials
Concentrated Biotinylated Detection Ab (100X)1 vial, 120 uL
Concentrated HRP Conjugate (100X)1 vial, 120 uL-20'C(shading light), 6 months
Reference Standard & Sample Diluent1 vial, 20 mL4'C, 6 months
Biotinylated Detection Ab Diluent1 vial, 14 mL
HRP Conjugate Diluent1 vial, 14 mL
Concentrated Wash Buffer (25X)1 vial, 30 mL
Substrate Reagent1 vial, 10 mL4'C(shading light)
Stop Solution1 vial, 10 mL4'C
Plate Sealer5 pieces
Product Description1 copy
Certificate of Analysis1 copy

Mouse IL2sR alpha/CD25 ELISA Kit (MOES01490) Assay procedure

    1. Set standard, test sample and control (zero) wells on the pre-coated plate and record theirpositions. It is recommended to measure each standard and sample in duplicate. Note: addall solutions to the bottom of the plate wells while avoiding contact with the well walls. Ensuresolutions do not foam when adding to the wells.
    2. Aliquot 100µl of standard solutions into the standard wells.
    3. Add 100µl of Sample / Standard dilution buffer into the control (zero) well.
    4. Add 100µl of properly diluted sample (serum, plasma, tissue homogenates and otherbiological fluids) into test sample wells.
    5. Cover the plate with the sealer provided in the kit and incubate for 90 min at 37°C.
    6. Aspirate the liquid from each well, do not wash. Immediately add 100µL of BiotinylatedDetection Ab working solution to each well. Cover the plate with a plate seal and gently mix.Incubate for 1 hour at 37°C.
    7. Aspirate or decant the solution from the plate and add 350µL of wash buffer to each welland incubate for 1-2 minutes at room temperature. Aspirate the solution from each well andclap the plate on absorbent filter paper to dry. Repeat this process 3 times. Note: a microplatewasher can be used in this step and other wash steps.
    8. Add 100µL of HRP Conjugate working solution to each well. Cover with a plate seal andincubate for 30 min at 37°C.
    9. Aspirate or decant the solution from each well. Repeat the wash process for five times asconducted in step 7.
    10. Add 90µL of Substrate Reagent to each well. Cover with a new plate seal and incubate forapproximately 15 min at 37°C. Protect the plate from light. Note: the reaction time can beshortened or extended according to the actual color change, but not by more than 30min.
    11. Add 50 µL of Stop Solution to each well. Note: Adding the stop solution should be done inthe same order as the substrate solution.
    12. Determine the optical density (OD value) of each well immediately with a microplate readerset at 450 nm.

Mouse IL2sR alpha/CD25 ELISA Kit (MOES01490) Protein Information

UniProt Protein Function:IL2RA: Receptor for interleukin-2. Non-covalent dimer of an alpha and a beta subunit. IL2R exists in 3 different forms: a high affinity dimer, an intermediate affinity monomer (beta subunit), and a low affinity monomer (alpha subunit). The high and intermediate affinity forms also associate with a gamma subunit.
UniProt Protein Details:

Protein type:Membrane protein, integral

Cellular Component: cell surface; membrane; integral to membrane; external side of plasma membrane

Molecular Function:protein binding; interleukin-2 receptor activity; drug binding; interleukin-2 binding

Biological Process: Notch signaling pathway; regulation of T cell homeostatic proliferation; negative regulation of immune response; negative regulation of defense response to virus; positive regulation of activated T cell proliferation; negative regulation of lymphocyte proliferation; inflammatory response to antigenic stimulus; negative regulation of T cell proliferation; positive regulation of T cell differentiation; negative regulation of inflammatory response; T cell homeostasis; positive regulation of T cell proliferation; immune response; activated T cell apoptosis

UniProt Code:P01590
NCBI GenInfo Identifier:124318
NCBI Gene ID:16184
NCBI Accession:P01590.1
UniProt Related Accession:P01590
Molecular Weight:
NCBI Full Name:Interleukin-2 receptor subunit alpha
NCBI Synonym Full Names:interleukin 2 receptor, alpha chain
NCBI Official Symbol:Il2ra  
NCBI Official Synonym Symbols:CD25; Il2r; Ly-43  
NCBI Protein Information:interleukin-2 receptor subunit alpha
UniProt Protein Name:Interleukin-2 receptor subunit alpha
UniProt Synonym Protein Names:p55; CD_antigen: CD25
UniProt Gene Name:Il2ra  
UniProt Entry Name:IL2RA_MOUSE
View AllClose

Additional Information

Product type:
ELISA
Reactivity:
Mouse
ELISA Type:
Sandwich
View AllClose