radio
SKU RP1017
Size 100μg/vial
Reactivity Mouse
Clonality Polyclonal
Host Rabbit
Ig Isotype N/A
Applications ELISA, IHC, WB

Overview

Product Name Anti-IL18 Antibody
SKU/Catalog Number RP1017
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.
Size 100μg/vial
Description Rabbit IgG polyclonal antibody for Interleukin-18(IL18) detection. Tested with WB, IHC-P, ELISA in Mouse.
Cite This Product Anti-IL18 Antibody (Boster Biological Technology, Pleasanton CA, USA, Catalog # RP1017)
Host Rabbit
Immunogen E. coli-derived mouse IL-18 recombinant protein(Position: N36-S192).
Reactivity Mouse

Assay Details

Assay Dilutions Overview

Immunohistochemistry(Paraffin-embedded Section), 0.5-1μg/ml, Mouse, By Heat
ELISA , 0.1-0.5μg/ml, Mouse, -
Western blot, 0.1-0.5μg/ml, Mouse

Boster's Secondary Antibodies And IHC, WB Kits

The following reagents are used to generate the images below.

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

/antibody/rp1017 1 WB anti il 18 antibody.jpg

Figure 1. Western blot analysis of IL-18 using anti- IL-18 antibody (RP1017).
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 1: Recombinant Mouse IL18 Protein 10ng,
Lane 2: Recombinant Mouse IL18 Protein 5ng,
Lane 3: Recombinant Mouse IL18 Protein 2.5ng,
Lane 4: Recombinant Mouse IL18 Protein 1.25ng.
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-18 antigen affinity purified polyclonal antibody (Catalog # RP1017) 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-18 at approximately 21KD. The expected band size for IL-18 is at 21KD.

/r/p/rp1017 2_1.jpg

Figure 2. IHC analysis of IL-18 using anti- IL-18 antibody (RP1017).
IL-18 was detected in paraffin-embedded section of mouse intestine tissues. Heat mediated antigen retrieval was performed in citrate buffer (pH6, epitope retrieval solution) for 20 mins. The tissue section was blocked with 10% goat serum. The tissue section was then incubated with 1μg/ml rabbit anti- IL-18 Antibody (RP1017) overnight at 4°C. Biotinylated goat anti-rabbit IgG was used as secondary antibody and incubated for 30 minutes at 37°C. The tissue section was developed using Strepavidin-Biotin-Complex (SABC)(Catalog # SA1022) with DAB as the chromogen.

Target Info

Protein Target Info (Source: Uniprot.org)

Uniprot Id P70380
Gene Name Il18
Protein Name Interleukin-18
Alternative Names Interleukin-18;IL-18;Interferon gamma-inducing factor;IFN-gamma-inducing factor;Interleukin-1 gamma;IL-1 gamma;Il18;Igif;
Subcellular Localization Secreted.
Molecular Weight 22135 MW

*if product is indicated to react with multiple species, protein info is based on the human gene.

Ontology

Protein Function Augments natural killer cell activity in spleen cells and stimulates interferon gamma production in T-helper type I cells.
Background Interleukin-18 also known as IL18 is a protein which in humans is encoded by the IL18 gene. The protein encoded by this gene is a proinflammatory cytokine.IL-18 is a cytokine produced by macrophages and other cells that belongs to the IL-1 superfamily. IL-18 works by binding to the interleukin-18 receptor, and together with IL-12 it induces cell-mediated immunity following infection with microbial products like lipopolysaccharide(LPS). After stimulation with IL-18, natural killer(NK) cells and certain T cells release another important cytokine called interferon-gamma(IFN-gamma) or type II interferon that plays an important role in activating the macrophages or other cells.The combination of this cytokine and IL12 has been shown to inhibit IL4 dependent IgE and IgG1 production, and enhance IgG2a production in B cells. IL-18 binding protein(IL18BP) can specifically interact with this cytokine, and thus negatively regulate its biological activity. The human interleukin 18 gene IL18 maps to 11q22.2-q22.3, closely linked to the DRD2 gene locus and distinct from mapped IDDM loci.

Order Product (RP1017)

Promotion:

Buy primary get secondary antibody for free.
Option Price
30ug sample size $139
100ug $280
100ug+Free HRP Secondary BA1054 $280
100ug+Free Biotin Secondary BA1003 $280
Ships in 5-7 business days.

Troubleshooting

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Publications

Effects of IFN-? on IL-18 Expression in Pregnant Rats and Pregnancy Outcomes
Role of interleukin 18 in acute lung inflammation induced by gut ischemia reperfusion
Yang Yj, Shen Y, Chen Sh, Ge Xr. World J Gastroenterol. 2005 Aug 7;11(29):4524-9. Role Of Interleukin 18 In Acute Lung Inflammation Induced By Gut Ischemia Reperfusion.
Wang Y, Zhang X, Zhang Y, Xu H, Fang G. J Reprod Immunol. 2011 Dec;92(1-2):45-53. Doi: 10.1016/J.Jri.2011.07.002. Epub 2011 Sep 13. Expression And Localization Of Il-18 In The Hypothalamic-Pituitary-Ovarian Axis Of Non-Pregnant, Pregnant, And Abor...

Customer Q&As

Q: Do you offer BSA-free antibodies? Keyword: Bovine serum albumin, carrier protein, conjugation
A: Yes, please contact us at support@bosterbio.com 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: Can I conjugate markers to this antibody? Can I link custom conjugates to this antibody? Keyword: conjugation
A: The antibody is stored with BSA and cannot be conjugated with markers. Carrier free antibodies are available upon request. Please contact support@bosterbio.com
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 signal
A: 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 "Immunogen" and clonality in the product name.
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:
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
2. Post-translational cleavage: this can cause smaller bands and or multiple bands

3. Alternative splicing: the same gene can have alternative splicing patterns generating different size proteins, all with reactivities to the antibody.

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.
5. Multimers: Multimers are usually broken up in reducing conditions. However if the interactions between the multimers are strong, the band may appear higher.,
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 18 antibody, il18 antibody, il-18 antibody