Anti-IL-18 antibody (ab71495)

Rabbit polyclonal IL-18 antibody. Validated in WB, IP, IHC and tested in Mouse. Cited in 23 publication(s). Independently reviewed in 1 review(s). Immunogen corresponding to synthetic peptide.


  • Product name

  • Description

    Rabbit polyclonal to IL-18
  • Host species

  • Tested applications

    Suitable for: WB, IP, IHC-Pmore details
  • Species reactivity

    Reacts with: Mouse
  • Immunogen

    Synthetic peptide corresponding to Mouse IL-18.

  • Positive control

    • WB: Mouse spleen tissue lysate.



Our Abpromise guarantee covers the use of ab71495 in the following tested applications.

The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.

Application Abreviews Notes
WB Use a concentration of 0.5 - 4 µg/ml. Detects a band of approximately 22 kDa (predicted molecular weight: 22 kDa).
IP Use a concentration of 2 - 5 µg/ml.
IHC-P Use a concentration of 1 µg/ml. Perform heat mediated antigen retrieval with citrate buffer pH 6 before commencing with IHC staining protocol.


  • Function

    Augments natural killer cell activity in spleen cells and stimulates interferon gamma production in T-helper type I cells.
  • Sequence similarities

    Belongs to the IL-1 family.
  • Cellular localization

  • Information by UniProt
  • Database links

  • Alternative names

    • Iboctadekin antibody
    • IFN gamma inducing factor antibody
    • IFN-gamma-inducing factor antibody
    • IGIF antibody
    • IL 1 gamma antibody
    • IL 18 antibody
    • IL 1g antibody
    • IL-1 gamma antibody
    • IL-18 antibody
    • IL1 gamma antibody
    • IL18 antibody
    • IL18 protein antibody
    • IL18_HUMAN antibody
    • IL1F4 antibody
    • IL1g antibody
    • IL1gamma antibody
    • ILIF4 antibody
    • Interferon gamma inducing factor antibody
    • Interferon gamma-inducing factor antibody
    • Interleukin 1 gamma antibody
    • Interleukin 18 (interferon-gamma-inducing factor) antibody
    • Interleukin 18 antibody
    • Interleukin-1 gamma antibody
    • Interleukin-18 antibody
    • Interleukin18 antibody
    • MGC12320 antibody
    see all


  • Immunohistochemical analysis of formaldehyde-fixed paraffin-embedded murine obsese nephric tissue sections, labelling IL-18 with ab71495 at a dilution of 1/2500 incubated for 12 hours at 4°C in PBS and 2.5% horse serum diluent. Heat mediated antigen retrival was with citrate buffer and blocking was with 2.5% horse serum in PBS incubated for 1 hour at 25°C. Secondary was a horse anti-rabbit polyclonal HRP conjugate.

    See Abreview

  • Anti-IL-18 antibody (ab71495) at 1 µg/ml + Mouse spleen tissue lysate at 10 µg

    Goat Anti-Rabbit IgG H&L (HRP) preadsorbed (ab97080) at 1/5000 dilution

    Developed using the ECL technique.

    Performed under reducing conditions.

    Predicted band size: 22 kDa
    Observed band size: 22 kDa
    Additional bands at: 100 kDa, 150 kDa, 76 kDa. We are unsure as to the identity of these extra bands.

    Exposure time: 2 minutes
  • IHC image of ab71495 staining in mouse normal spleen formalin fixed paraffin embedded tissue section, performed on a Leica BondTM system using the standard protocol F. The section was pre-treated using heat mediated antigen retrieval with sodium citrate buffer (pH6, epitope retrieval solution 1) for 20 mins. The section was then incubated with ab71495, 1µg/ml, for 15 mins at room temperature and detected using an HRP conjugated compact polymer system. DAB was used as the chromogen. The section was then counterstained with haematoxylin and mounted with DPX.

    For other IHC staining systems (automated and non-automated) customers should optimize variable parameters such as antigen retrieval conditions, primary antibody concentration and antibody incubation times.


This product has been referenced in:

  • Wixey JA  et al. Neuropathology in intrauterine growth restricted newborn piglets is associated with glial activation and proinflammatory status in the brain. J Neuroinflammation 16:5 (2019). Read more (PubMed: 30621715) »
  • Huang X  et al. VSIG4 mediates transcriptional inhibition of Nlrp3 and Il-1ß in macrophages. Sci Adv 5:eaau7426 (2019). Read more (PubMed: 30662948) »
See all 34 Publications for this product

Customer reviews and Q&As

1-6 of 6 Abreviews or Q&A

Western blot
Mouse Tissue lysate - whole (mouse RPE/choroid)
Gel Running Conditions
Reduced Denaturing (4-12% bis-tris gel)
Loading amount
20 µg
cigarette smoking 6-mo
mouse RPE/choroid
Blocking step
Milk as blocking agent for 1 hour(s) and 0 minute(s) · Concentration: 5% · Temperature: 22°C

Abcam user community

Verified customer

Submitted Mar 13 2019

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections)
Mouse Tissue sections (kidney)
Antigen retrieval step
Heat mediated - Buffer/Enzyme Used: Citrate buffer 1X
Blocking step
Serum as blocking agent for 1 hour(s) and 0 minute(s) · Concentration: 2.5% · Temperature: 25°C

Abcam user community

Verified customer

Submitted Oct 14 2015


Thank you very much for your call today and for letting us know about the trouble with this antibody.

As we discussed, I'm sending a fresh vial of ab71495 on the order ***, which should arrive tomorrow.

Please keep me updated about the results with this new vial, and if there is anything else that we can do for you please let me know. I'll be happy to help.

Have a nice day!

Read More


ab71495 will detect both the forms of IL-18.

Hope this information has been helpful for you.Please let me know if you have any other questions.

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Thank you for contacting us and for your interest in our products.

I am sorry to confirm that as far as we are aware, ab71495 has never been tested with samples from dog. All tested species cross-reactivity information covered by our guarantee is stated on our datasheets, and these are updated as soon as any new information is brought to our attention.

I can confirm the immunogen is from the mouse protein, taken from between amino acids 25 -65 (this antibody issourced externally and regrettably in this case the exact sequence is proprietary). This sequence has 60% alignment to the dog sequence. We recommend that alignment should be 85% to predict that an antibody will detect in a different species. In this case, the alignment is low, so althoughthere is a possibility of some weak crossreactivity, unfortunately I would not suggest this antibody is likely to work well in dog.

If you would like to test the antibody in dog, please do not hesitate to contact me again by replying to this message prior to the purchase as you may be eligible for our testing discount program.

Otherwise, we like to encourage all of our customers to submit an Abreview via the online product datasheet. We always appreciate customer feedback, whether positive or negative, and we make all product information available to researchers. Each Abreview earns Abpoints that can be used for discounts on future purchases or rewards such as gift certificates.

To find out more about our Abreview system, please see the following link:

I hope this information is helpful. Please do not hesitate to contact me for any further advice or information.

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Thank you for your enquiry. The epitope region for this product has not been mapped, therefore we do not have the exact epitope information. Unfortunately, the exact peptide sequence information is also not available (proprietary and can not be released). However, the originators of the product were willing to release the amino acid sequence range from where the exact peptide sequence was taken. The immunogen is a sequence of amino acids between 1- 157 of mature mouse. I hope this information will still be helpful. If there is anything else that I can help you with, please do not hesitate to contact me.

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