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IL4 antibody (RP1009) performs well in ELISA, IHC, WB and shows reactivity with Human.
- Validated for inter-lot consistency, specificity, and reproducibility
- Committed to quality since 1993
- Over 4 Publications
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Figure. Western blot analysis of IL-4 using anti-IL-4 antibody (RP1009).
Electrophoresis was performed on a 5-20% SDS-PAGE gel at 70V (Stacking gel) / 90V (Resolving gel) for 2-3 hours. The sample well of each lane was loaded with 50ug of sample under reducing conditions.
Lane: Recombinant Human IL-4 Protein 0.5ng,
After Electrophoresis, proteins were transferred to a Nitrocellulose membrane at 150mA for 50-90 minutes. Blocked the membrane with 5% Non-fat Milk/ TBS for 1.5 hour at RT. The membrane was incubated with rabbit anti-IL-4 antigen affinity purified polyclonal antibody (Catalog # RP1009) at 0.5 μg/mL overnight at 4°C, then washed with TBS-0.1%Tween 3 times with 5 minutes each and probed with a goat anti-rabbit IgG-HRP secondary antibody at a dilution of 1:10000 for 1.5 hour at RT. The signal is developed using an Enhanced Chemiluminescent detection (ECL) kit (Catalog # EK1002) with Tanon 5200 system. A specific band was detected for IL-4 at approximately 14KD. The expected band size for IL-4 is at 14KD.
Electrophoresis was performed on a 5-20% SDS-PAGE gel at 70V (Stacking gel) / 90V (Resolving gel) for 2-3 hours. The sample well of each lane was loaded with 50ug of sample under reducing conditions.
Lane: Recombinant Human IL-4 Protein 0.5ng,
After Electrophoresis, proteins were transferred to a Nitrocellulose membrane at 150mA for 50-90 minutes. Blocked the membrane with 5% Non-fat Milk/ TBS for 1.5 hour at RT. The membrane was incubated with rabbit anti-IL-4 antigen affinity purified polyclonal antibody (Catalog # RP1009) at 0.5 μg/mL overnight at 4°C, then washed with TBS-0.1%Tween 3 times with 5 minutes each and probed with a goat anti-rabbit IgG-HRP secondary antibody at a dilution of 1:10000 for 1.5 hour at RT. The signal is developed using an Enhanced Chemiluminescent detection (ECL) kit (Catalog # EK1002) with Tanon 5200 system. A specific band was detected for IL-4 at approximately 14KD. The expected band size for IL-4 is at 14KD.
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Anti-Interleukin-4 IL4 Antibody Picoband®
IL4 antibody
| Reactive Species | Host | Application |
|---|---|---|
| Human | Rabbit | ELISA, IHC, WB |
Recommend Dilution
Application
Dilution
Species
Immunohistochemistry (Paraffin-embedded Section)
0.5-1μg/ml
Human
ELISA
0.1-0.5μg/ml
-
Western blot
0.1-0.5μg/ml
Human
* It is recommended to optimize the amount of this reagent in each experimental system to achieve the best results.
Product Information
Product Name
Anti-Interleukin-4 IL4 Antibody Picoband®
View all IL4 Antibodies
View all IL4 Antibodies
Form
Lyophilized
Uniprot
Gene ID
Storage & Handling
Store at -20˚C for one year from date of receipt. After reconstitution, at 4˚C for one month. It can also be aliquotted and stored frozen at -20˚C for six months. Avoid repeated freeze-thaw cycles.
Host
Rabbit
Contents
Each vial contains 0.9mg NaCl, 0.2mg Na2HPO4, 0.05mg NaN3. Carrier free (No BSA) form available in stock. If you want this antibody carrier free please specify "Carrier Free" or "No BSA" in your order note.
Clonality
Polyclonal
Isotype
Rabbit IgG
Immunogen
E. coli-derived human IL-4 recombinant protein (Position: H25-S153).
Cross-Reactivity
No cross-reactivity with other proteins
Reconstitution
Add 0.2ml of distilled water will yield a concentration of 500ug/ml.
Observed Molecular Weight
14 kDa
Calculated Molecular Weight
17.5 kDa
Background of IL4
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.1 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.1 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 5.2 The standard product used in this kit is recombinant human IL-4, consisting of 130 amino acids with the molecular mass of 14KDa.
Cite This Product
Anti-Interleukin-4 IL4 Antibody Picoband® (Boster Biological Technology, Pleasanton CA, USA, Catalog # RP1009)
Antibody Homology Across Species
The results generated by this homology analysis tool for commonly used animal species are shown below. For unlisted species, please refer to the homology analysis between the immunogen sequence and the corresponding species.
A homology of ≥90% is recommended. Generally, higher homology indicates a greater potential for cross-species reactivity. However, protein expression levels may vary among different species, tissues, and cell types. Therefore, the homology analysis results are for reference only and do not guarantee antibody cross-reactivity or experimental performance.
Human
100%
High Homology
Monkey
91%
High Homology
Rabbit
57%
Low homology
Sheep
57%
Low homology
Cow
56%
Low homology
Dog
46%
Low homology
Rat
44%
Low homology
Mouse
40%
Low homology
Homology ≥ 90%High Homology
70% ≤ Homology < 90%Moderate Homology
Homology < 70%Low homology
Publications
Application:
Species:
Cellular morphometry of the neoplastic microenvironment and its association with the immunoexpression of Interleukin-4
Published: 2025-02-28
Journal: TISSUE & CELL
Application: IHC
Impact Factor: 2.50
Species: Human
PMID: 40058089
Anti-inflammatory and immunomodulatory effects of the extracellular vesicles derived from human umbilical cord mesenchymal stem cells on osteoarthritis via M2 macrophages
Published: 2022-01-20
Journal: JOURNAL OF NANOBIOTECHNOLOGY
Application: WB
Impact Factor: 9.43
Species: Human
PMID: 35057811
Predictive Value of Serum IFN-γ inducible Protein-10 and IFN-γ/IL-4 Ratio for Liver Fibrosis Progression in CHB Patients
Published: 2017-01-09
Journal: Scientific Reports
Application: IHC
Impact Factor: 4.26
Species: Human
PMID: 28067328
Expression of IFN-γ and IL-4 in the Esophageal Mucosa of Patients with Reflux Esophagitis and Barrett’s Esophagus and Their Relationship with Endoscopic and Histologic Grading
Published: 2011-04-09
Journal: DIGESTIVE DISEASES AND SCIENCES
Application: IHC
Impact Factor: 2.06
Species: Human
PMID: 21479676
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In stock
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RP1009
Buy one primary antibody get one 0.5ml HRP or Biotin secondary antibody for free.
*Sample sizes are prepared on demand and will take extra lead time. (cannot be conjugated)
$370.00
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We promise all of our products perform as described in datasheets.
This product is for Research Use Only. Not for use in diagnostic procedures.
Update date:
Sep 26, 2026