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Rabbit IL-4 ELISA Kit

SKU:
RBFI00066
Product Type:
ELISA Kit
Size:
96 Assays
Uniprot:
Q9MZR8
Sensitivity:
9.375pg/ml
Range:
15.625-1000pg/ml
ELISA Type:
Sandwich
Synonyms:
IL-4, Interleukin 4, IL4, BCGF-1, BCGF1, BSF-1, BSF1
Reactivity:
Rabbit
€599
Frequently bought together:

Description

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Rabbit IL-4 ELISA Kit

The Rabbit IL-4 ELISA Kit is a highly sensitive and specific assay designed for the precise measurement of interleukin-4 (IL-4) levels in rabbit serum, plasma, and cell culture supernatants. This kit provides reliable and reproducible results, making it an ideal tool for a variety of research applications.IL-4 is a key cytokine that plays a crucial role in regulating immune responses, inflammation, and allergic reactions.

It is involved in numerous physiological processes and is a vital biomarker for studying immune disorders, autoimmune diseases, and inflammatory conditions. With the Rabbit IL-4 ELISA Kit, researchers can accurately quantify IL-4 levels in rabbit samples, providing valuable insights into the role of this cytokine in various disease states and potential therapeutic interventions.

Product Name:Rabbit IL-4 (Interleukin 4) ELISA Kit
Product Code:RBFI00066
Size:96 Assays
Target:Rabbit IL-4
Alias:IL-4, Interleukin 4, IL4, BCGF-1, BCGF1, BSF-1, BSF1
Reactivity:Rabbit
Detection Method:Sandwich ELISA, Double Antibody
Sensitivity:9.375pg/ml
Range:15.625-1000pg/ml
Storage:4°C for 6 months
Note:For Research Use Only
Recovery:Matrices listed below were spiked with certain level of Rabbit IL-4 and the recovery rates were calculated by comparing the measured value to the expected amount of Rabbit IL-4 in samples.
MatrixRecovery range(%)Average(%)
serum(n=5)94-10197
EDTA plasma(n=5)86-10292
UFH plasma(n=5)85-105100
Linearity:The linearity of the kit was assayed by testing samples spiked with appropriate concentration of Rabbit IL-4 and their serial dilutions. The results were demonstrated by the percentage of calculated concentration to the expected.
Sample1:21:41:8
serum(n=5)88-105%88-100%92-102%
EDTA plasma(n=5)94-101%83-101%88-100%
UFH plasma(n=5)81-100%82-98%83-100%
Intra-Assay:CV <8%
Inter-Assay:CV <10%
Uniprot:Q9MZR8
UniProt Protein Function:Function: Participates in at least several B-cell activation processes as well as of other cell types. It is a costimulator of DNA-synthesis. It induces the expression of class II MHC molecules on resting B-cells. It enhances both secretion and cell surface expression of IgE and IgG1. It also regulates the expression of the low affinity Fc receptor for IgE (CD23) on both lymphocytes and monocytes
UniProt Protein Details:

By similarity.

Subcellular location: Secreted.

Sequence similarities: Belongs to the IL-4/IL-13 family.

UniProt Code:Q9MZR8
NCBI GenInfo Identifier:75057308
NCBI Gene ID:100302454
NCBI Accession:Q9MZR8.1
UniProt Secondary Accession:Q9MZR8,Q0MS70,
UniProt Related Accession:Q9MZR8
Molecular Weight:16,562 Da
NCBI Full Name:Interleukin-4
NCBI Official Symbol:IL4  
NCBI Official Synonym Symbols:IL2; BSF-1  
NCBI Protein Information:interleukin-4; B-cell stimulatory factor 1; lymphocyte stimulatory factor 1
UniProt Protein Name:Interleukin-4
UniProt Synonym Protein Names:B-cell stimulatory factor 1; BSF-1; Lymphocyte stimulatory factor 1
Protein Family:Interleukin
UniProt Gene Name:IL4  
UniProt Entry Name:IL4_RABIT
StepProcedure
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 Type Protocol
Serum:

If 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 clotovernight at 2-8°C. Centrifuge for 10 minutes at 1,000x g. Removeserum and assay promptly or aliquot and store the samples at-80°C. Avoid multiple freeze-thaw cycles.

Plasma: Collect plasma using EDTA or heparin as an anti-coagulant. 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 Fluid: Collect 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 Supernatant: Collect 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 Lysates: Solubilize 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 Homogenates: The preparation of tissue homogenates will vary depending upon tissue type. Rinse tissue with 1X PBS to remove excess blood & homogenizein 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 Lysates: Rinse 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 Milk: Collect 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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