Recombinant Anti-IL-1 beta antibody [EPR21086] (ab216995)
![Western blot - Anti-IL-1 beta antibody [EPR21086] (ab216995)](https://www.abcam.com/ps/products/216/ab216995/Images/ab216995-453258-anti-il-1-beta-antibody-epr21086-western-blot-wildtype-thp1-untreated-wildtype-thp1-lps-treated-3-h-100-ngml-il1b-k.jpg "Western blot - Anti-IL-1 beta antibody [EPR21086] (ab216995)")
Key features and details
- Produced recombinantly (animal-free) for high batch-to-batch consistency and long term security of supply
- Rabbit monoclonal [EPR21086] to IL-1 beta
- Suitable for: WB, IP
- Knockout validated
- Reacts with: Human
Overview
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Product name
Anti-IL-1 beta antibody [EPR21086]
See all IL-1 beta primary antibodies -
Description
Rabbit monoclonal [EPR21086] to IL-1 beta -
Host species
Rabbit -
Tested applications
Suitable for: WB, IPmore details -
Species reactivity
Reacts with: Human -
Immunogen
Recombinant fragment within Human IL-1 beta aa 100 to the C-terminus. The exact sequence is proprietary.
Database link: P01584 -
Positive control
- WB: LPS treated THP-1 whole cell lysate. IP: LPS treated THP-1 whole cell lysate.
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General notes
This product is a recombinant monoclonal antibody, which offers several advantages including:
- - High batch-to-batch consistency and reproducibility
- - Improved sensitivity and specificity
- - Long-term security of supply
- - Animal-free production
Our RabMAb® technology is a patented hybridoma-based technology for making rabbit monoclonal antibodies. For details on our patents, please refer to RabMAb® patents.
Reproducibility is key to advancing scientific discovery and accelerating scientists’ next breakthrough.
Abcam is leading the way with our range of recombinant antibodies, knockout-validated antibodies and knockout cell lines, all of which support improved reproducibility.
We are also planning to innovate the way in which we present recommended applications and species on our product datasheets, so that only applications & species that have been tested in our own labs, our suppliers or by selected trusted collaborators are covered by our Abpromise™ guarantee.
In preparation for this, we have started to update the applications & species that this product is Abpromise guaranteed for.
We are also updating the applications & species that this product has been “predicted to work with,” however this information is not covered by our Abpromise guarantee.
Applications & species from publications and Abreviews that have not been tested in our own labs or in those of our suppliers are not covered by the Abpromise guarantee.
Please check that this product meets your needs before purchasing. If you have any questions, special requirements or concerns, please send us an inquiry and/or contact our Support team ahead of purchase. Recommended alternatives for this product can be found below, as well as customer reviews and Q&As.
Properties
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Form
Liquid -
Storage instructions
Shipped at 4°C. Store at +4°C short term (1-2 weeks). Upon delivery aliquot. Store at -20°C. Avoid freeze / thaw cycle. -
Storage buffer
pH: 7.2
Preservative: 0.01% Sodium azide
Constituents: PBS, 40% Glycerol, 0.05% BSA -
Concentration information loading... -
Purity
Protein A purified -
Clonality
Monoclonal -
Clone number
EPR21086 -
Isotype
IgG -
Research areas
Associated products
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Alternative Versions
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Isotype control
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Recombinant Protein
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Related Products
Applications
Our Abpromise guarantee covers the use of ab216995 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 | 1/1000. Detects a band of approximately 35, 29, 17 kDa (predicted molecular weight: 31 kDa). | |
| IP | 1/30. |
Target
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Function
Potent proinflammatory cytokine. Initially discovered as the major endogenous pyrogen, induces prostaglandin synthesis, neutrophil influx and activation, T-cell activation and cytokine production, B-cell activation and antibody production, and fibroblast proliferation and collagen production. Promotes Th17 differentiation of T-cells. -
Tissue specificity
Expressed in activated monocytes/macrophages (at protein level). -
Sequence similarities
Belongs to the IL-1 family. -
Post-translational
modificationsActivation of the IL1B precursor involves a CASP1-catalyzed proteolytic cleavage. Processing and secretion are temporarily associated. -
Cellular localization
Cytoplasm, cytosol. Lysosome. Secreted, exosome. Cytoplasmic vesicle, autophagosome. Secreted. The precursor is cytosolic. In response to inflammasome-activating signals, such as ATP for NLRP3 inflammasome or bacterial flagellin for NLRC4 inflammasome, cleaved and secreted. IL1B lacks any known signal sequence and the pathway(s) of its secretion is(are) not yet fully understood (PubMed:24201029). On the basis of experimental results, several unconventional secretion mechanisms have been proposed. 1. Secretion via secretory lysosomes: a fraction of CASP1 and IL1B precursor may be incorporated, by a yet undefined mechanism, into secretory lysosomes that undergo Ca(2+)-dependent exocytosis with release of mature IL1B (PubMed:15192144). 2. Secretory autophagy: IL1B-containing autophagosomes may fuse with endosomes or multivesicular bodies (MVBs) and then merge with the plasma membrane releasing soluble IL1B or IL1B-containing exosomes (PubMed:24201029). However, autophagy impacts IL1B production at several levels and its role in secretion is still controversial. 3. Secretion via exosomes: ATP-activation of P2RX7 leads to the formation of MVBs containing exosomes with entrapped IL1B, CASP1 and other inflammasome components. These MVBs undergo exocytosis with the release of exosomes. The release of soluble IL1B occurs after the lysis of exosome membranes (By similarity). 4. Secretion by microvesicle shedding: activation of the ATP receptor P2RX7 may induce an immediate shedding of membrane-derived microvesicles containing IL1B and possibly inflammasome components. The cytokine is then released in the extracellular compartment after microvesicle lysis (PubMed:11728343). 5. Release by translocation through permeabilized plasma membrane. This may occur in cells undergoing pyroptosis due to sustained activation of the inflammasome (By similarity). These mechanisms may not be not mutually exclusive. - Information by UniProt
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Database links
- Entrez Gene: 3553 Human
- Omim: 147720 Human
- SwissProt: P01584 Human
- Unigene: 126256 Human
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Alternative names
- Catabolin antibody
- H1 antibody
- IFN beta inducing factor antibody
see all
Images
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Western blot - Anti-IL-1 beta antibody [EPR21086] (ab216995)All lanes : Anti-IL-1 beta antibody [EPR21086] (ab216995) at 1/1000 dilution
Lane 1 : Wild-type THP-1 untreated cell lysate
Lane 2 : Wild-type THP-1 LPS-treated (3 h, 100 ng/ml) cell lysate
Lane 3 : IL1B knockout THP-1 untreated cell lysate
Lane 4 : IL1B knockout THP-1 LPS-treated (3 h, 100 ng/ml) cell lysate
Lysates/proteins at 30 µg per lane.
Performed under reducing conditions.
Predicted band size: 31 kDa
Observed band size: 27-32 kDa why is the actual band size different from the predicted?Lanes 1 - 4: Merged signal (red and green). Green - ab216995 observed at 27-32 kDa. Red - loading control ab7291 (Mouse anti-Alpha Tubulin [DM1A]) observed at 55 kDa.
ab216995 was shown to react with IL-1 beta in wild-type THP-1 cells in Western blot with loss of signal observed in IL1B knockout cell line ab273762 (knockout cell lysate ab275508). Wild-type THP-1 and IL1B knockout cell lysates were subjected to SDS-PAGE. Membranes were blocked in 3 % milk in TBS-T (0.1 % Tween®) before incubation with ab216995 and ab7291 (Mouse anti-Alpha Tubulin [DM1A]) overnight at 4 °C at a 1 in 1000 dilution and a 1 in 20000 dilution respectively. Blots were incubated with Goat anti-Rabbit IgG H&L (IRDye® 800CW) preabsorbed (ab216773) and Goat anti-Mouse IgG H&L (IRDye® 680RD) preabsorbed (ab216776) secondary antibodies at 1 in 20000 dilution for 1 h at room temperature before imaging.
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![Immunoprecipitation - Anti-IL-1 beta antibody [EPR21086] (ab216995)](https://www.abcam.com/ps/products/216/ab216995/Images/ab216995-296130-anti-il-1-beta-antibody-epr21086-immunoprecipitation.jpg)
Immunoprecipitation - Anti-IL-1 beta antibody [EPR21086] (ab216995)IL-1 beta was immunoprecipitated from 0.35 mg THP-1 (human monocytic leukemia monocyte) whole cell lysate treated with 100 ng/ml lipopolysaccharide (LPS) for 3 hours, with ab216995 at 1/30 dilution. Western blot was performed from the immunoprecipitate using ab216995 at 1/1000 dilution. VeriBlot for IP Detection Reagent (HRP) (ab131366), was used for detection at 1/5000 dilution.
Lane 1: THP-1 (human monocytic leukemia monocyte) treated with 100 ng/ml lipopolysaccharide (LPS) for 3 hours whole cell lysate 10 µg (Input).
Lane 2: ab216995 IP in THP-1 treated with 100 ng/ml lipopolysaccharide (LPS) for 3 hours whole cell lysate (+).
Lane 3: Rabbit monoclonal IgG (ab172730) instead of ab216995 in THP-1 treated with 100 ng/ml lipopolysaccharide (LPS) for 3 hours whole cell lysate (-).
Blocking and dilution buffer and concentration: 5% NFDM/TBST.
Exposure time: 3 minutes. -
![Western blot - Anti-IL-1 beta antibody [EPR21086] (ab216995)](https://www.abcam.com/ps/products/216/ab216995/Images/ab216995-296129-anti-il-1-beta-antibody-epr21086-western-blot.jpg)
Western blot - Anti-IL-1 beta antibody [EPR21086] (ab216995)All lanes : Anti-IL-1 beta antibody [EPR21086] (ab216995) at 1/1000 dilution
Lane 1 : Untreated THP-1 (human monocytic leukemia monocyte) whole cell lysate
Lane 2 : THP-1 treated with 100 ng/ml Lipopolysaccharide (LPS) for 3 hours
Lysates/proteins at 20 µg per lane.
Secondary
All lanes : Goat Anti-Rabbit IgG H&L (HRP) (ab97051) at 1/100000 dilution
Developed using the ECL technique.
Predicted band size: 31 kDa
Exposure time: 3 minutesBlocking/Dilution buffer and concentration: 5% NFDM/TBST.
The expression profile is consistent with the literature (PMID 15192144 and 10845914).
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![Anti-IL-1 beta antibody [EPR21086] (ab216995)](https://www.abcam.com/ps/products/216/ab216995/Images/ab216995-3-benefits-of-recombinant-antibodies.png)
Anti-IL-1 beta antibody [EPR21086] (ab216995)
Protocols
To our knowledge, customised protocols are not required for this product. Please try the standard protocols listed below and let us know how you get on.
References (1)
ab216995 has been referenced in 1 publication.
- Wang X et al. Nicorandil alleviates apoptosis in diabetic cardiomyopathy through PI3K/Akt pathway. J Cell Mol Med 23:5349-5359 (2019). PubMed: 31131539
