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Product Info Summary
| SKU: | EK0864 |
|---|---|
| Size: | 96 wells/kit, with removable strips. |
| Reactive Species: | Human |
| Application: | ELISA |
| Sample Types: | cell culture supernatants, cell lysates, serum and plasma (heparin, EDTA). |
Product info
Product Name
Human IL-18/IL-1F4/Interleukin-18 ELISA Kit PicoKine®
View all IL-18/IL-1F4 ELISA kits
SKU/Catalog Number
EK0864
Size
96 wells/kit, with removable strips.
*Question: How many samples can I assay/run in this kit?
Description
Human IL-18 ELISA Kit PicoKine® (96 Tests). Quantitate Human IL18 in cell culture supernatants, cell lysates, serum and plasma (heparin, EDTA). Sensitivity: 1pg/ml. The brand Picokine indicates this is a premium quality ELISA kit. Each Picokine kit delivers precise quantification, high sensitivity, and excellent reproducibility. Only our most reliable and effective kits qualify as Picokine, guaranteeing top-tier results for your assays.
Storage & Handling
Store at 4°C for 6 months, at -20°C for 12 months. Avoid multiple freeze-thaw cycles (Ships with gel ice, can store for up to 3 days in room temperature. Freeze upon receiving.)
Cite This Product
Human IL-18/IL-1F4/Interleukin-18 ELISA Kit PicoKine® (Boster Biological Technology, Pleasanton CA, USA, Catalog # EK0864)
Clonality of Antibodies
See Datasheet for details
Standard Protein
Expression system for standard: E.coli; Immunogen sequence: Y33-D197
Sensitivity
<1 pg/ml
Assay Range
31.2 pg/ml - 2,000 pg/ml
Standard Dilution Instructions
See datasheet of EK0864 for more details
Cross-reactivity
There is no detectable cross-reactivity with other relevant proteins.
Reactive Species
EK0864 is reactive to IL18 in Human samples
Validated Sample Types
cell culture supernatants, cell lysates, serum and plasma (heparin, EDTA).
Application Guarantee
EK0864 is guaranteed for ELISA in Human by Boster Guarantee
See how Boster Bio validate our ELISA kits: ELISA Validation Information
Background of IL-18/IL-1F4
Interleukin (IL)-18, also called Interferon-gamma-inducing factor (IGIF), augments natural killer (NK) activity in spleen cells. The gene encodes a precursor protein of 192 amino acids and a mature protein of 157 amino acids.1 IL-18 is a recently discovered cytokine that modulates both T helper type 1 (Th1) and Th2 responses.2 IL-18 is a potent proinflammatory cytokine with potential atherogenic properties. It is highly expressed in the atherosclerotic plaques compared with control normal arteries and is localized mainly in plaque macrophages.3
Kit Components
| Catalog Number | Description | Quantity |
|---|---|---|
| EK0864-CAP | Anti-Human IL18 Pre-coated 96-well strip microplate | 1 |
| EK0864-ST | Human IL18 Standard | 2 vials, 10 ng/tube |
| EK0864-DA | Human IL18 Biotinylated antibody (100x) | 100ul |
| AR1103 | Avidin-Biotin-Peroxidase Complex (100x) | 100ul |
| AR1106-1 | Sample Diluent | 30ml |
| AR1106-2 | Antibody Diluent | 12ml |
| AR1106-3 | Avidin-Biotin-Peroxidase Diluent | 12ml |
| AR1104 | Color Developing Reagent (TMB) | 10ml |
| AR1105 | Stop Solution | 10ml |
| AR1106-5 | Wash Buffer (25x) | 20ml |
| PLA-SEA | Adhesive plate sealers | 4 |
*The kit components are not available for individual purchase.
Materials Required But Not Included In Kit
- Microplate Reader capable of reading absorbance at 450nm.
- Incubator.
- Automated plate washer (optional).
- Pipettes and pipette tips capable of precisely dispensing 0.5 µl through 1 ml volumes of aqueous solutions.
- Multichannel pipettes are recommended for large amount of samples.
- Deionized or distilled water.
- 500ml graduated cylinders.
- Test tubes for dilution.
Data Examples, Quality Control Data & Sample Dilution
Validation Standard Curve O.D. At 450nm
| Concentration (pg/ml) | 0 | 31.2 | 62.5 | 125 | 250 | 500 | 1000 | 2000 |
| O.D. | 0.033 | 0.105 | 0.132 | 0.216 | 0.364 | 0.676 | 1.235 | 1.955 |
Data Example Images
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Human IL-18 PicoKine ELISA Kit standard curve
Recommended Sample Dilution Ratios
According to our internal validation assays using this ELISA kit, to detect IL-18/IL-1F4, Dilution ratio of 1:1, concentration in serum and plasma is 67-429 pg/ml..
Some articles we found to cite concentrations of IL-18/IL-1F4 in samples: 25379480 (Pubmed IDs).
Intra Assay Consistency & Inter Assay Consistency
We measured random samples of Human IL-18/IL-1F4/Interleukin-18 ELISA Kit PicoKine® within the same batch/lot to ensure the consistency of the kits' performances. ELISA intra assay consistency is measured using wells from the same plate/assay kit. ELISA inter assay consistency is measured using wells from different plates from the same batch production/lot.
| Intra-Assay Precision | Inter-Assay Precision | |||||
|---|---|---|---|---|---|---|
| Sample | 1 | 2 | 3 | 1 | 2 | 3 |
| n | 16 | 16 | 16 | 24 | 24 | 24 |
| Mean (pg/ml) | 33 | 247 | 520 | 36 | 254 | 548 |
| Standard deviation | 2.4 | 13.83 | 21.84 | 2.66 | 16.25 | 31.78 |
| CV (%) | 7.3% | 5.6% | 4.2% | 7.4% | 6.4% | 5.8% |
Reproducibility
We ensure reproducibility by testing three samples with differing concentrations of IL-18/IL-1F4 in ELISA kits from four different production batches/lots.
| Lots | Lot 1 (pg/ml) | Lot 2 (pg/ml) | Lot 3 (pg/ml) | Lot 4 (pg/ml) | Mean (pg/ml) | Standard Deviation | CV (%) |
|---|---|---|---|---|---|---|---|
| Sample 1 | 33 | 32 | 33 | 31 | 32 | 0.82 | 2.5% |
| Sample 2 | 247 | 212 | 221 | 232 | 228 | 13.05 | 5.7% |
| Sample 3 | 520 | 533 | 562 | 546 | 478 | 31.15 | 5.4% |
Protein Target Info & Infographic
Gene/Protein Information For IL18 (Source: Uniprot.Org, NCBI)
Gene Name
IL18
Full Name
Interleukin-18
Weight
22326 MW
Superfamily
IL-1 family
Alternative Names
Interleukin-18;IL-18;Iboctadekin;Interferon gamma-inducing factor;IFN-gamma-inducing factor;Interleukin-1 gamma;IL-1 gamma;IL18;IGIF, IL1F4; IL18 IGIF, IL-18, IL-1g, IL1F4 interleukin 18 interleukin-18|IFN-gamma-inducing factor|IL-1 gamma|iboctadekin|interleukin 18 (interferon-gamma-inducing factor)|interleukin-1 gamma
*if product is indicated to react with multiple species, protein info is based on the gene entry specified above in "species".For more info on IL18, check out the IL18 Infographic
We have 30,000+ of these available, one for each gene! check them out.
In this infographic you will see the following information for IL18: database IDs, super-family, protein function, synonyms, molecular weight, chromosomal locations, tissues of expression, subcellular locations, post translational modifications, and related diseases, research areas & pathways. If you want to see more information included, or would like to contribute to it and be acknowledged, please contact us [email protected].
Specific Publications For Human IL-18/IL-1F4/Interleukin-18 ELISA Kit PicoKine® (EK0864)
Hello CJ!
EK0864 has been cited in 45 publications:
*The publications in this section are manually curated by our staff scientists. They may differ from Bioz's machine gathered results. Both are accurate. If you find a publication citing this product but is missing from this list, please let us know we will issue you a thank-you coupon.
Kidney Function Improvement by Soy Milk Containing Lactobacillus plantarum A7 in Type 2 Diabetic Patients With Nephropathy: a Double-Blinded Randomized Controlled Trial
Effects of pioglitazone on blood glucose and inflammatory markers of diabetic kidney transplant patients: a randomized controlled trial.
Serum 17-OH progesterone and free testosterone levels in women patients with Familial Mediterranean Fever: a pivotal study.
Interleukin 18 Polymorphisms and its serum level in Patients with Multiple Sclerosis
Emodin attenuates adenosine triphosphate‑induced pancreatic ductal cell injury in vitro via the inhibition of the P2X7/NLRP3 signaling pathway
Effect of pulegone on the NLPR3 inflammasome during inflammatory activation of THP‑1 cells
Anti-Inflammatory Property of the Essential Oil from Cinnamomum camphora (Linn.) Presl Leaves and the Evaluation of Its Underlying Mechanism by Using Metabolomics Analysis
H3 Relaxin Alleviates Migration, Apoptosis and Pyroptosis Through P2X7R-Mediated Nucleotide Binding Oligomerization Domain-Like Receptor Protein 3 Inflammasome Activation in Retinopathy Induced by Hyperglycemia
Antitumor Effects of Berberine on Gliomas via Inactivation of Caspase-1-Mediated IL-1β and IL-18 Release
Sex-Related Differences in Innate and Adaptive Immune Responses to SARS-CoV-2
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Customer Reviews
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Customer Q&As
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9 Customer Q&As for Human IL-18/IL-1F4/Interleukin-18 ELISA Kit PicoKine®
Question
Does EK0864 detect pro-IL 18 or active-IL18? Does it detect total or free IL18?
Verified customer
Asked: 2022-03-04
Answer
Human IL-18/IL-1F4/Interleukin-18 ELISA Kit PicoKine® (EK0864) detects total IL18.
Boster Scientific Support
Answered: 2022-03-06
Question
Q: Can IL-18 ELISA Kits be used with tissue homogenates (or other non-validated sample types)?
G. Wilson
Verified customer
Asked: 2020-04-19
Answer
A: Unfortunately, Boster Bio has not routinely validated tissue homogenates as a sample type for ELISA kits. This does not mean that ELISA kits are not valid for other sample types than we have tested: it means further investigation is required. One will need to perform a spike and recovery study to determine if an unvalidated sample type will work with a particular kit. To perform a spike and recovery experiment, one should divide a sample into two aliquots. In one of the aliquots, the user should spike in a known amount of the kit standard. a dilution series is performed comparing the spiked versus the unspiked sample. Generally, samples with expected recovery and linearity between 80-120% are considered acceptable. This method can be used to validate any sample type that has not been assessd by Boster Bio. for a more detailed spike and recovery protocol, please contact technical support.
Note: acceptable ranges should be determined individually by each laboratory. Additionally, technical support can help determine if a buffer component is not compatible with a given ELISA kit. please check the Citations tab on the product webpage for peer-reviewed papers utilizing a wide range of sample types. We also have an innovator's reward program where if the user validates our ELISA kits in applications or samples previously not validated by Boster Bio or other users, and share such information with us by submit a review, we will reward the user's efforts with a free antibody or ELISA kit from our catalog. Biocompare.com will also give $20 Amazon giftcard as an additional reward, if the review is submitted there as well.
Boster Scientific Support
Answered: 2020-04-19
Question
Q: if the enzyme conjugated IL-18 antibodies are mixed with the substrate, will that change the substrate into the enzymatic reaction product? Or the enzyme function is only activated when the antibody is attached with the IL-18 antigen?
J. Taylor
Verified customer
Asked: 2020-01-01
Answer
A: The enzyme is always active. Avoid contaminating the substrate with enzyme prior to the incubation otherwise it compromises the assay with false positive signal.
Boster Scientific Support
Answered: 2020-01-01
Question
Q: what is the protocol regarding preparation of cell lysates prepared for use in Picokine® ELISA kits?
Verified Customer
Verified customer
Asked: 2019-04-10
Answer
A: in those Picokine® ELISAs where cell or tissue lysate is a validated sample type, sample preparation instructions for lysate are present in the product insert. Components in lysate and lysis buffer can change immunoreactivity, so if lysate is not a validated sample type, care must be taken in sample preparation and validation.
Boster Scientific Support
Answered: 2019-04-10
Question
Q: is it okay to use citrate plasma as samples in Human IL-18 Picokine® ELISA Kit (Catalog # EK0864)?
Verified Customer
Verified customer
Asked: 2018-10-31
Answer
A: Chelating agents such as EDTA, Heparin and Citrate can irreversibly bind metal ions from the functional domain of IL-18 causing disruption of its protein structure. IL-18 may be denatured as a result and may compromise the assay's measurements. The chilating sites could also be too close to the epitopes needed for detection and block the antigen antibody reaction. We have tested the IL-18 ELISA, treating samples with various anticoagulants and decided that heparin or EDTA can be used for treatment of blood/plasma samples. Do not use other anticoagulents when collecting samples.
Boster Scientific Support
Answered: 2018-10-31
Question
Q: how to proceed with the analysis of ELISA data? I measured IL-18 level in plasma.
Verified Customer
Verified customer
Asked: 2018-06-12
Answer
A: please read this article on ELISA data analysis. bosterbio.com/ELISA-data-analysis-instructions. we also provide a convenient online tool that you can use to analyze ELISA data. bosterbio.com/biology-research-tools/ELISA-data-analysis-online
Boster Scientific Support
Answered: 2018-06-12
Question
Which isoform can be detected by this kit?
Verified Customer
Verified customer
Asked: 2018-01-26
Answer
It can detect both mature IL-18 and precursor IL-18.
Boster Scientific Support
Answered: 2018-01-26
Question
Q: is there any online tool I can use to streamline the data analysis for my ELISA results?
Verified Customer
Verified customer
Asked: 2016-09-28
Answer
A: We have a web based ELISA curve fitting (4pl) and data analysis tool. Please give it a try: bosterbio.com/biology-research-tools/ELISA-data-analysis-online. You can also consult our article on ELISA data analysis: bosterbio.com/ELISA-data-analysis-instructions
Boster Scientific Support
Answered: 2016-09-28
Question
Q: how many samples can be assayed in a Picokine® ELISA Kit?
Verified Customer
Verified customer
Asked: 2016-09-25
Answer
A: The Picokine® ELISA Kits will generally run a 7-point standard curve, non-specific binding wells, and 39 samples in duplicate. this may might differ by kit so please refer to each datasheet for details.
Boster Scientific Support
Answered: 2016-09-25
