Rabbit IgG polyclonal antibody for Interleukin-4(IL4) detection. Tested with WB, IHC-P in Human.
|Product Name||Anti-IL4 Antibody
See all IL4 primary antibodies, ELISA kits and proteins
|Storage & Handling||At -20°C for one year. After reconstitution, at 4°C for one month. It can also be aliquotted and stored frozen at -20°C for a longer time.Avoid repeated freezing and thawing.|
|Description||Polyclonal antibody for IL 4/IL4 detection. Host: Rabbit.Size: 100μg/vial. Tested applications: IHC-P. Reactive species: Human. IL 4/IL4 information: Molecular Weight: 17492 MW; Subcellular Localization: Secreted.|
|Cite This Product||Anti-IL4 Antibody (Boster Biological Technology, Pleasanton CA, USA, Catalog # PA1749)|
|Specificity||Anti-IL4 Antibody (PA1749) reacts with Human IL4, in native form and recombinant. Superfamily members of IL4 are not reactive to PA1749.|
|Contents/Buffer||Each vial contains 5mg BSA, 0.9mg NaCl, 0.2mg Na2HPO4, 0.05mg Thimerosal, 0.05mg NaN3.|
|Reconstitution||Add 0.2ml of distilled water will yield a concentration of 500ug/ml.|
|Immunogen||A synthetic peptide corresponding to a sequence in the middle region of human IL-4(72-88aa, AATVLRQFYSHHEKDTR).|
Our Boster Quality Guarantee for Anti-IL4 Antibody covers its use in the following applications.
*The recommended dilution ratios/concentrations are for reference only and optimal dilutions/concentrations should be determined by the end user.
Assay Dilutions Overview
Immunohistochemistry(Paraffin-embedded Section), 0.5-1μg/ml, Human, By Heat
Western blot, 0.1-0.5μg/ml, Human
Boster's Compatible Products
The following reagents are used to generate the images below for Anti-IL4 Antibody (PA1749).Boster recommends Enhanced Chemiluminescent Kit with anti-Rabbit IgG (EK1002) for Western blot, and HRP Conjugated anti-Rabbit IgG Super Vision Assay Kit (SV0002-1) for IHC(P).
Images And Assay Conditions
Anti-IL-4 antibody, PA1749, IHC(P)
IHC(P): Human Tonsil Tissue
Anti-IL-4 antibody, PA1749, Western blotting
All lanes: Anti IL-4 (PA1749) at 0.5ug/ml
Lane 1: Recombinant Human IL-4 Protein 10ng
Lane 2: Recombinant Human IL-4 Protein 5ng
Lane 3: Recombinant Human IL-4 Protein 2.5ng
Predicted bind size: 14KD
Observed bind size: 14KD
Protein Target Info (Source: Uniprot.org)
|Alternative Names||Interleukin-4;IL-4;B-cell stimulatory factor 1;BSF-1;Binetrakin;Lymphocyte stimulatory factor 1;Pitrakinra;IL4;|
|Molecular Weight||17492 MW|
*if product is indicated to react with multiple species, protein info is based on the human gene.
|Protein 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.|
*You can search these to find other products in these research areas.
|Background||Interleukin-4(IL-4), also knowns as a B-cell stimulatory factor1(BSF1), is an immunomodulatory cytokine, which can inhibit the growth of tumour cells. The human cDNA contains a single open reading frame encoding a protein of 153 amino acids, including a putative signal peptide. IL-4 may act as an autocrine growth factor in pancreatic cancer cells and also give rise to the possibility that cancer-derived IL-4 may suppress cancer-directed immunosurveillance in vivo in addition to its growth-promoting effects, thereby facilitating pancreatic tumor growth and metastasis. The mouse and human genes and their protein products show structural and functional similarities. The human IL-4 gene, which occurs as a single copy in the haploid genome, is mapped on chromosome 5. The standard product used in this kit is recombinant human IL-4, consisting of 130 amino acids with the molecular mass of 14KDa.|
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Guaranteed product quality
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Q: Do you offer BSA-free antibodies? Keyword: Bovine serum albumin, carrier protein, conjugationA: Yes, please contact us at [email protected] for more information about BSA-free antibodies and availability. The new BSA-free formula uses trehalose as a replacement to BSA. We have tested many alternative chemicals and found that trehalose protects the antibodies the best.
Q: Is your western blot protocol provided from the website applicable for all your antibodies? Keyword: applications, WBA: The protocol is applicable for all our antibodies in WB, the NC Membrane(0.45μm or 0.22μm) and transfer time(70 mins or 50 mins) depends on the protein molecular weight, details can be found in included protocol.
Q: Can I conjugate markers to this antibody? Can I link custom conjugates to this antibody? Keyword: conjugationA: The antibody is stored with BSA and cannot be conjugated with markers. Carrier free antibodies are available upon request. Please contact [email protected]
Q: What should I use for negative control?A: Please contact us for negative control suggestions. You can also check expression databases such as genecards, uniprot etc. Due to logistic reasons, we do not sell serum or lysates that we use internally for positive or negative control.
Q: Where can I find troubleshooting information? What should I do if I have unexpected bands, high background, no signal, weak signalA: You can find Boster's troubleshoot guides under tech support tab. Please contact us for further assistance on troubleshooting your experiment.
Q: What is the immunogen sequence of this antibody? Is this antibody polyclonal or monoclonal?A: You can find the immunogen sequence under "
Q: What is the expected band size? Why is it different than the observed band size?A: The expected band size is predicted on the size of the protein. The actual band size may be affected by a few other factors including but not limited to:<br>1. Post-translational modification:phosphorylation, methylation, glycosylation etc. These modifications prevent SDS molecules from binding to the target protein and thus make the band size appear larger than expected<br>2. Post-translational cleavage: this can cause smaller bands and or multiple bands <br><br>3. Alternative splicing: the same gene can have alternative splicing patterns generating different size proteins, all with reactivities to the antibody. <br><br>4. Amino Acid R chain charge: SDS binds to positive charges. The different size and charge of the Amino Acid side chains can affect the amount of SDS binding and thus affect the observed band size.<br>5. Multimers: Multimers are usually broken up in reducing conditions. However if the interactions between the multimers are strong, the band may appear higher., <br>
Q: What is the suggested dilution ratio for Western Blot (WB), Immunohistochemistry (IHC) and or ELISA standards? What is the optimal pH for the sample?A: Check the datasheet for the product for details on dilution ratios for different experiments. You can find the datasheet button on the right side of the product page.
Q: What is the protocol you used for your Western blotting (WB) and Immunohistochemistry (IHC)?A: Check our protocols under the tech support tab.
Q: What are some alternative names that could be used to describe this product?A: Some common names include but are not limited to il 4 antibody, il4 antibody, il-4 antibody, interleukin 4 antibody, interleukin-4 antibody, mff antibody, interleukin4 antibody