IL-4 antibody
Rabbit anti Human Interleukin-4 antibody recognizes human IL-4 (Interleukin-4), also known as B-cell stimulatory factor 1, a 129 amino acid pleiotropic cytokine which interacts with multiple cell lineages, including T cells, fibroblasts and haematopoietic cells, and is one of the most important factors involved in B cell IgG1 and IgE class switching.
IL-4 signalling through the IL-4 receptor (IL-4R), under the influence of Stat6, induces the differentiation of CD4+ T cells into Th2 helper cells, which themselves then secrete IL-4 along with IL-5, IL-6, IL-10 and IL-13. Excessive secretion of IL-4 by Th2 helper cells has been linked with allergy and elevated IgE levels.
IL-4 signalling through the IL-4 receptor (IL-4R), under the influence of Stat6, induces the differentiation of CD4+ T cells into Th2 helper cells, which themselves then secrete IL-4 along with IL-5, IL-6, IL-10 and IL-13. Excessive secretion of IL-4 by Th2 helper cells has been linked with allergy and elevated IgE levels.
Product Details
- Target Species
- Human
- Product Form
- Purified IgG - lyophilised
- Reconstitution
- Reconstitute with 0.1ml distilled water.
Care should be taken during reconstitution as the protein may appear as a film at the bottom of the vial. Bio-Rad recommend that the vial is gently mixed after reconstitution.
For long term storage the addition of 0.09% sodium azide is recommended. NB: For functional studies do not add azide. - Antiserum Preparation
- Antisera to human IL-4 were raised by repeated immunisations of rabbits with highly purified antigen. Purified IgG prepared by affinity chromatography.
- Buffer Solution
- Phosphate buffered saline
- Preservative Stabilisers
- None present
- Carrier Free
- Yes
- Immunogen
- Recombinant human IL-4
- Approx. Protein Concentrations
- IgG concentration 1.0mg/ml after reconstitution.
Storage Information
- Storage
- Prior to reconstitution store at -20°C.
After reconstitution store at -20°C.
This product should be stored undiluted. Storage in frost-free freezers is not recommended. Avoid repeated freezing and thawing as this may denature the antibody. Should this product contain a precipitate we recommend microcentrifugation before use. - Guarantee
- 12 months from date of despatch
More Information
- UniProt
- P05112
- Entrez Gene
- IL4
- GO Terms
- GO:0005125 cytokine activity
- GO:0005136 interleukin-4 receptor binding
- GO:0005615 extracellular space
- GO:0006935 chemotaxis
- GO:0006968 cellular defense response
- GO:0008083 growth factor activity
- GO:0008203 cholesterol metabolic process
- GO:0016563 transcription activator activity
- GO:0016564 transcription repressor activity
- GO:0030183 B cell differentiation
- GO:0030890 positive regulation of B cell proliferation
- GO:0042092 type 2 immune response
- GO:0043066 negative regulation of apoptosis
- GO:0045189 connective tissue growth factor biosynthetic process
- GO:0045348 positive regulation of MHC class II biosynthetic process
- GO:0045671 negative regulation of osteoclast differentiation
- GO:0045944 positive regulation of transcription from RNA polymerase II promoter
- GO:0048295 positive regulation of isotype switching to IgE isotypes
- GO:0048304 positive regulation of isotype switching to IgG isotypes
- Regulatory
- For research purposes only
Applications of IL-4 antibody
| Application Name | Verified | Min Dilution | Max Dilution |
|---|---|---|---|
| ELISA | 0.5 | 2.0ug/ml | |
| Functional Assays | 0.03 | 0.05ug/ml | |
| Immunohistology - Paraffin 1 | |||
| Western Blotting | 0.1 | 0.2ug/ml |
- 1 This product requires antigen retrieval using heat treatment prior to staining of paraffin sections. Sodium citrate buffer pH 6.0 is recommended for this purpose.
Where this product has not been tested for use in a particular technique this does not necessarily exclude its use in such procedures. Suggested working dilutions are given as a guide only. It is recommended that the user titrates the product for use in their own system using appropriate negative/positive controls.
- ELISA
- This purified human IL-4 antibody may be used in ELISA with recombinant human IL-4 (PHP234) as the standard.
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Secondary Antibodies Available
| Description | Product Code | Applications | Pack Size | List Price | Quantity |
|---|---|---|---|---|---|
| Goat anti Rabbit IgG (Fc):Biotin | STAR121B | E WB | 1 mg |
|
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| Goat anti Rabbit IgG (Fc):FITC | STAR121F | F | 1 mg |
|
|
| Goat anti Rabbit IgG (Fc):HRP | STAR121P | E WB | 1 mg |
|
|
| Goat anti Rabbit IgG (H/L):HRP | STAR124P | C E WB | 1 mg |
|
|
| Sheep anti Rabbit IgG:FITC | STAR34B | C F | 1 mg |
|
|
| Sheep anti Rabbit IgG:RPE | STAR35A | F | 1 ml |
|
|
| Sheep anti Rabbit IgG:DyLight®488 | STAR36D488GA | F IF WB | 0.1 mg | ||
| Sheep anti Rabbit IgG:DyLight®680 | STAR36D680GA | F IF WB | 0.1 mg | ||
| Sheep anti Rabbit IgG:Dylight®800 | STAR36D800GA | F IF WB | 0.1 mg |
Useful Reagents Available
| Description | Product Code | Applications | Pack Size | List Price | Quantity |
|---|---|---|---|---|---|
| Antigen Retrieval Buffer, pH8.0 | BUF025A | P | 500 ml | ||
| Antigen Retrieval Buffer, pH8.0 | BUF025C | P | 50 ml | ||
| TidyBlot Western Blot Detection Reagent:HRP | STAR209P | WB* | 0.5 ml |
Product Specific References
Further Reading
-
Arai, N. et al. (1989) Complete nucleotide sequence of the chromosomal gene for human IL-4 and its expression.
J Immunol. 142 (1): 274-82. -
Steinke, J.W. & Borish, L. (2001) Th2 cytokines and asthma. Interleukin-4: its role in the pathogenesis of asthma, and targeting it for asthma treatment with interleukin-4 receptor antagonists.
Respir Res. 2 (2): 66-70.
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