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Human IL-5RA / CD125  ELISA Kit

SKU:
HUFI00541
Product Type:
ELISA Kit
Size:
96 Assays
Uniprot:
Q01344
Sensitivity:
46.875pg/ml
Range:
78.125-5000pg/ml
ELISA Type:
Sandwich
Synonyms:
IL5RA, CD125, IL5R, CD125 antigen, IL-5RA, CDw125, HSIL5R3, IL-5 receptor subunit alpha, IL-5R subunit alpha, IL-5R-alpha, interleukin 5 receptor type 3, interleukin 5 receptor, alpha, interleukin-5 receptor alpha chain, interleukin-5 receptor alpha
Reactivity:
Human
Research Area:
Cell Biology
€599
Frequently bought together:

Description

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Human IL-5RA/CD125 ELISA Kit

The Human IL-5RA (CD125) ELISA Kit is specifically designed for the precise measurement of IL-5RA (CD125) levels in human serum, plasma, and cell culture supernatants. This kit offers high sensitivity and specificity, ensuring accurate and reproducible results for a variety of research applications.IL-5RA (CD125) is a critical receptor protein involved in the immune response, specifically in regulating the differentiation and activation of eosinophils.

Dysregulation of IL-5RA (CD125) has been implicated in various inflammatory and allergic diseases, making it a valuable biomarker for studying these conditions and developing potential treatments.Overall, the Human IL-5RA (CD125) ELISA Kit provides researchers with a reliable tool for studying the role of IL-5RA (CD125) in health and disease, offering insights into potential therapeutic targets and personalized treatment strategies.

Product Name:Human IL-5RA / CD125  ELISA Kit
Product Code:HUFI00541
Size:96 Assays
Alias:IL5RA, CD125, IL5R, CD125 antigen, IL-5RA, CDw125, HSIL5R3, IL-5 receptor subunit alpha, IL-5R subunit alpha, IL-5R-alpha, interleukin 5 receptor type 3, interleukin 5 receptor, alpha, interleukin-5 receptor alpha chain, interleukin-5 receptor alpha subunit, interleukin-5 receptor subunit alpha
Detection method:Sandwich ELISA, Double Antibody
Application:This immunoassay kit allows for the in vitro quantitative determination of Human IL5RA concentrations in serum plasma and other biological fluids.
Sensitivity:46.875pg/ml
Range:78.125-5000pg/ml
Storage:4°C for 6 months
Note:For Research Use Only
Recovery:Matrices listed below were spiked with certain level of Human IL5RA and the recovery rates were calculated by comparing the measured value to the expected amount of Human IL5RA in samples.
MatrixRecovery range(%)Average(%)
serum(n=5)87-10496
EDTA plasma(n=5)89-10094
UFH plasma(n=5)87-10594
Linearity:The linearity of the kit was assayed by testing samples spiked with appropriate concentration of Human IL5RA and their serial dilutions. The results were demonstrated by the percentage of calculated concentration to the expected.
Sample1:21:41:8
serum(n=5)89-104%94-103%89-104%
EDTA plasma(n=5)83-97%83-100%83-98%
UFH plasma(n=5)83-91%91-100%92-99%
CV(%):Intra-Assay: CV<8%
Inter-Assay: CV<10%
ComponentQuantityStorage
ELISA Microplate (Dismountable)8×12 strips4°C for 6 months
Lyophilized Standard24°C/-20°C
Sample/Standard Dilution Buffer20ml4°C
Biotin-labeled Antibody(Concentrated)120ul4°C (Protect from light)
Antibody Dilution Buffer10ml4°C
HRP-Streptavidin Conjugate(SABC)120ul4°C (Protect from light)
SABC Dilution Buffer10ml4°C
TMB Substrate10ml4°C (Protect from light)
Stop Solution10ml4°C
Wash Buffer(25X)30ml4°C
Plate Sealer5-

Other materials and equipment required:

  • Microplate reader with 450 nm wavelength filter
  • Multichannel Pipette, Pipette, microcentrifuge tubes and disposable pipette tips
  • Incubator
  • Deionized or distilled water
  • Absorbent paper
  • Buffer resevoir
UniprotQ01344
UniProt Protein Function:IL5RA: This is the receptor for interleukin-5. The alpha chain binds to IL5. Belongs to the type I cytokine receptor family. Type 5 subfamily. 3 isoforms of the human protein are produced by alternative splicing.
UniProt Protein Details:Protein type:Membrane protein, integral; Receptor, cytokine

Chromosomal Location of Human Ortholog: 3p26-p24

Cellular Component: extracellular space; plasma membrane

Molecular Function:interleukin-5 receptor activity; protein binding; protein-tyrosine kinase activity; Ras guanyl-nucleotide exchange factor activity

Biological Process: cell proliferation; MAPKKK cascade; signal transduction

NCBI Summary:The protein encoded by this gene is an interleukin 5 specific subunit of a heterodimeric cytokine receptor. The receptor is comprised of a ligand specific alpha subunit and a signal transducing beta subunit shared by the receptors for interleukin 3 (IL3), colony stimulating factor 2 (CSF2/GM-CSF), and interleukin 5 (IL5). The binding of this protein to IL5 depends on the beta subunit. The beta subunit is activated by the ligand binding, and is required for the biological activities of IL5. This protein has been found to interact with syndecan binding protein (syntenin), which is required for IL5 mediated activation of the transcription factor SOX4. Several alternatively spliced transcript variants encoding four distinct isoforms have been reported. [provided by RefSeq, Jul 2011]
UniProt Code:Q01344
NCBI GenInfo Identifier:116242525
NCBI Gene ID:3568
NCBI Accession:Q01344.2
UniProt Secondary Accession:Q01344,Q14633, Q15469, Q6ISX9, B3IU77, B4E2G0,
UniProt Related Accession:Q01344
Molecular Weight:23,737 Da
NCBI Full Name:Interleukin-5 receptor subunit alpha
NCBI Synonym Full Names:interleukin 5 receptor subunit alpha
NCBI Official Symbol:IL5RA
NCBI Official Synonym Symbols:IL5R; CD125; CDw125; HSIL5R3
NCBI Protein Information:interleukin-5 receptor subunit alpha
UniProt Protein Name:Interleukin-5 receptor subunit alpha
UniProt Synonym Protein Names:CDw125; CD_antigen: CD125
Protein Family:Interleukin-5 receptor
UniProt Gene Name:IL5RA
UniProt Entry Name:IL5RA_HUMAN

*Note: Protocols are specific to each batch/lot. For the correct instructions please follow the protocol included in your kit.

Before adding to wells, equilibrate the SABC working solution and TMB substrate for at least 30 min at 37°C. When diluting samples and reagents, they must be mixed completely and evenly. It is recommended to plot a standard curve for each test.

StepProtocol
1.Set standard, test sample and control (zero) wells on the pre-coated plate respectively, and then, record their positions. It is recommended to measure each standard and sample in duplicate. Wash plate 2 times before adding standard, sample and control (zero) wells!
2.Aliquot 0.1ml standard solutions into the standard wells.
3.Add 0.1 ml of Sample / Standard dilution buffer into the control (zero) well.
4.Add 0.1 ml of properly diluted sample ( Human serum, plasma, tissue homogenates and other biological fluids.) into test sample wells.
5.Seal the plate with a cover and incubate at 37 °C for 90 min.
6.Remove the cover and discard the plate content, clap the plate on the absorbent filter papers or other absorbent material. Do NOT let the wells completely dry at any time. Wash plate X2.
7.Add 0.1 ml of Biotin- detection antibody working solution into the above wells (standard, test sample & zero wells). Add the solution at the bottom of each well without touching the side wall.
8.Seal the plate with a cover and incubate at 37°C for 60 min.
9.Remove the cover, and wash plate 3 times with Wash buffer. Let wash buffer rest in wells for 1 min between each wash.
10.Add 0.1 ml of SABC working solution into each well, cover the plate and incubate at 37°C for 30 min.
11.Remove the cover and wash plate 5 times with Wash buffer, and each time let the wash buffer stay in the wells for 1-2 min.
12.Add 90 µl of TMB substrate into each well, cover the plate and incubate at 37°C in dark within 10-20 min. (Note: This incubation time is for reference use only, the optimal time should be determined by end user.) And the shades of blue can be seen in the first 3-4 wells (with most concentrated standard solutions), the other wells show no obvious color.
13.Add 50 µl of Stop solution into each well and mix thoroughly. The color changes into yellow immediately.
14. Read the O.D. absorbance at 450 nm in a microplate reader immediately after adding the stop solution.

When carrying out an ELISA assay it is important to prepare your samples in order to achieve the best possible results. Below we have a list of procedures for the preparation of samples for different sample types.

Sample TypeProtocol
SerumIf using serum separator tubes, allow samples to clot for 30 minutes at room temperature. Centrifuge for 10 minutes at 1,000x g. Collect the serum fraction and assay promptly or aliquot and store the samples at -80°C. Avoid multiple freeze-thaw cycles.

If serum separator tubes are not being used, allow samples to clot overnight at 2-8°C. Centrifuge for 10 minutes at 1,000x g. Remove serum and assay promptly or aliquot and store the samples at -80°C. Avoid multiple freeze-thaw cycles.

PlasmaCollect plasma using EDTA or heparin as an anticoagulant. Centrifuge samples at 4°C for 15 mins at 1000 × g within 30 mins of collection. Collect the plasma fraction and assay promptly or aliquot and store the samples at -80°C. Avoid multiple freeze-thaw cycles. Note: Over haemolysed samples are not suitable for use with this kit.
Urine & Cerebrospinal FluidCollect the urine (mid-stream) in a sterile container, centrifuge for 20 mins at 2000-3000 rpm. Remove supernatant and assay immediately. If any precipitation is detected, repeat the centrifugation step. A similar protocol can be used for cerebrospinal fluid.
Cell culture supernatantCollect the cell culture media by pipette, followed by centrifugation at 4°C for 20 mins at 1500 rpm. Collect the clear supernatant and assay immediately.
Cell lysatesSolubilize cells in lysis buffer and allow to sit on ice for 30 minutes. Centrifuge tubes at 14,000 x g for 5 minutes to remove insoluble material. Aliquot the supernatant into a new tube and discard the remaining whole cell extract. Quantify total protein concentration using a total protein assay. Assay immediately or aliquot and store at ≤ -20 °C.
Tissue homogenatesThe preparation of tissue homogenates will vary depending upon tissue type. Rinse tissue with 1X PBS to remove excess blood & homogenize in 20ml of 1X PBS (including protease inhibitors) and store overnight at ≤ -20°C. Two freeze-thaw cycles are required to break the cell membranes. To further disrupt the cell membranes you can sonicate the samples. Centrifuge homogenates for 5 mins at 5000xg. Remove the supernatant and assay immediately or aliquot and store at -20°C or -80°C.
Tissue lysatesRinse tissue with PBS, cut into 1-2 mm pieces, and homogenize with a tissue homogenizer in PBS. Add an equal volume of RIPA buffer containing protease inhibitors and lyse tissues at room temperature for 30 minutes with gentle agitation. Centrifuge to remove debris. Quantify total protein concentration using a total protein assay. Assay immediately or aliquot and store at ≤ -20 °C.
Breast MilkCollect milk samples and centrifuge at 10,000 x g for 60 min at 4°C. Aliquot the supernatant and assay. For long term use, store samples at -80°C. Minimize freeze/thaw cycles.

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