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Product Info Summary
| SKU: | EK1116 |
|---|---|
| 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-1 RL1 / ST2 ELISA Kit PicoKine®
View all ST2/IL-33R ELISA kits
SKU/Catalog Number
EK1116
Size
96 wells/kit, with removable strips.
*Question: How many samples can I assay/run in this kit?
Description
Human IL-1 RL1 / ST2 ELISA Kit PicoKine® (96 Tests). Quantitate Human IL1RL1 in cell culture supernatants, cell lysates, serum and plasma (heparin, EDTA). Sensitivity: 10pg/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-1 RL1 / ST2 ELISA Kit PicoKine® (Boster Biological Technology, Pleasanton CA, USA, Catalog # EK1116)
Clonality of Antibodies
See Datasheet for details
Standard Protein
Expression system for standard: NS0; Immunogen sequence: K19-S328
Sensitivity
<10 pg/ml
Assay Range
156 pg/ml - 10,000 pg/ml
Standard Dilution Instructions
See datasheet of EK1116 for more details
Cross-reactivity
There is no detectable cross-reactivity with other relevant proteins.
Reactive Species
EK1116 is reactive to IL1RL1 in Human samples
Validated Sample Types
cell culture supernatants, cell lysates, serum and plasma (heparin, EDTA).
Application Guarantee
EK1116 is guaranteed for ELISA in Human by Boster Guarantee
See how Boster Bio validate our ELISA kits: ELISA Validation Information
Background of ST2/IL-33R
Interleukin 1 receptor-like 1, also known as IL1RL1 or ST2, is a protein that in humans is encoded by the IL1RL1 gene. The protein encoded by this gene is a member of the interleukin 1 receptor family. Studies of the similar gene in mouse suggested that this receptor can be induced by proinflammatory stimuli, and may be involved in the function of helper T cells. TL1RL1 is necessary for endotoxin tolerance and, by inhibiting TLR responses, enhances Th2 responses. This gene, interleukin 1 receptor, type I (IL1R1), interleukin 1 receptor, type II (IL1R2) and interleukin 1 receptor-like 2 (IL1RL2) form a cytokine receptor gene cluster in a region mapped to chromosome 2q12.
Kit Components
| Catalog Number | Description | Quantity |
|---|---|---|
| EK1116-CAP | Anti-Human IL1RL1 Pre-coated 96-well strip microplate | 1 |
| EK1116-ST | Human IL1RL1 Standard | 2 vials, 10 ng/tube |
| EK1116-DA | Human IL1RL1 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 | 156 | 312 | 625 | 1250 | 2500 | 5000 | 10000 |
| O.D. | 0.002 | 0.114 | 0.176 | 0.333 | 0.667 | 0.998 | 1.543 | 2.059 |
Data Example Images
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Human IL1RL1/ST2 PicoKine ELISA Kit standard curve
Recommended Sample Dilution Ratios
According to our internal validation assays using this ELISA kit, to detect ST2/IL-33R, Dilution ratio of 1:1, concentration in serum and plasma is 300-700 pg/ml..
Some articles we found to cite concentrations of ST2/IL-33R in samples: 24065602 (Pubmed IDs).
Intra Assay Consistency & Inter Assay Consistency
We measured random samples of Human IL-1 RL1 / ST2 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) | 242 | 1795 | 5486 | 247 | 1778 | 5061 |
| Standard deviation | 9.68 | 80.77 | 257.84 | 13.58 | 106.68 | 237.86 |
| CV (%) | 4% | 4.5% | 4.7% | 5.5% | 6% | 4.7% |
Reproducibility
We ensure reproducibility by testing three samples with differing concentrations of ST2/IL-33R 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 | 242 | 253 | 262 | 247 | 251 | 7.44 | 2.9% |
| Sample 2 | 1795 | 1679 | 1561 | 1563 | 1649 | 96.63 | 5.8% |
| Sample 3 | 5486 | 5339 | 5211 | 5406 | 5360 | 100.78 | 1.8% |
Protein Target Info & Infographic
Gene/Protein Information For IL1RL1 (Source: Uniprot.Org, NCBI)
Gene Name
IL1RL1
Full Name
Interleukin-1 receptor-like 1
Weight
63358 MW
Superfamily
interleukin-1 receptor family
Alternative Names
Interleukin-1 receptor-like 1;Protein ST2;IL1RL1;DER4, ST2, T1; IL1RL1 DER4, FIT-1, IL33R, ST2, ST2L, ST2V, T1 interleukin 1 receptor like 1 interleukin-1 receptor-like 1|growth stimulation-expressed|homolog of mouse growth stimulation-expressed|interleukin 1 receptor-related protein
*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 IL1RL1, check out the IL1RL1 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 IL1RL1: 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-1 RL1 / ST2 ELISA Kit PicoKine® (EK1116)
Hello CJ!
EK1116 has been cited in 3 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.
Assessment of ST2 and Reg3a levels in patients with acute graft-versus-host disease after allogeneic hematopoietic stem cell transplantation
Comparison of predictive value of NT-proBNP, sST2 and MMPs in heart failure patients with different ejection fractions
Gungor O, Unal HU, Guclu A, Gezer M, Eyileten T, Guzel FB, Altunoren O, Erken E, Oguz Y, Kocyigit I, Yilmaz MI. PLoS One. 2017 Jun 14;12(6):e0178939. doi: 10.1371/journal.pone.0178939. eCollection 2017. IL-33 and ST2 levels in chronic kidney disea...
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Customer Reviews
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Customer Q&As
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8 Customer Q&As for Human IL-1 RL1 / ST2 ELISA Kit PicoKine®
Question
Q: is there any online tool I can use to streamline the data analysis for my ELISA results?
Verified Customer
Verified customer
Asked: 2020-07-05
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: 2020-07-05
Question
Q: how much samples can be assayed in a Picokine® ELISA Kit?
Verified Customer
Verified customer
Asked: 2020-03-30
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 depends upon the kit used so please refer to each datasheet for details.
Boster Scientific Support
Answered: 2020-03-30
Question
Q: What is the optimal O.D. value for ST2 ELISA kit? I performed your ST2 ELISA on serum samples. For my positive control, I received an O.D. value of 0.826, while my negative control received a value of 0.136. I obtained both of these controls from the ELISA kit, where your kit's typical data shows O.D. values much higher than my positive control and your background is lower. My samples O.D. values are around 0.225 and the highest is only 0.357. can I consider these samples contain ST2 even though the O.D. values are not very high?
Verified Customer
Verified customer
Asked: 2019-12-30
Answer
A: The absolute O.D. values may change according to incubation time. The more you incubate the higher the O.D. values are going to be. an important assessment should be is whether your sample O.D. values are statistically significantly higher than your blank values. regarding your assay, you could extend your development time in the substrate incubation step to obtain higher O.D. values, as long as your negative controls' O.D. values are not increasing faster in proportion to your positive controls. normally, a sample with O.D. value 2 standard deviations higher than your negative controls can be considered positive. We calculate the sensitivity of this ELISA kit by changeing cutoff O.D. value, calculated as the average of 20 negative controls plus 2 standard deviations of the 20 negative controls, into a concentration. in other words, when we claim this ST2 ELISA kit to have sensitivity of 10pg/ml, that means the minimum amount of ST2 that can be declared/interpreted as positive by the above standard is 10pg/ml.
Boster Scientific Support
Answered: 2019-12-30
Question
Q. Is the product for the soluble form of human ST-2?
Verified Customer
Verified customer
Asked: 2019-10-22
Answer
A. Our EK1116 is designed to test human soluble ST-2.
Boster Scientific Support
Answered: 2019-10-22
Question
Q: Are Boster Bio recombinant proteins and antibodies sterile?
B. Carter
Verified customer
Asked: 2019-09-08
Answer
A: although the vials are bottled using aseptic techniques, heat-treated vials, and sterile stock solutions, they are not considered or guaranteed to be sterile. If sterile material is needed for an experiment, the material can be filtered through a 0.2 micron filter designed for use with biological fluids.
Boster Scientific Support
Answered: 2019-09-08
Question
Q: for how much duration can samples (cell cultures, serum, and plasma) be stored and still be stable for measurement ST2 using the EK1116 Human ST2 Picokine® ELISA Kit?
Verified Customer
Verified customer
Asked: 2018-01-22
Answer
A: Boster Bio does not evaluate sample stability. Variations in sample collection, processing, and storage may alter the stabilityof samples. It is recommend to assay sample on-stat collection when possible, or aliquot into single use volumes and store samples frozen. avoid repeat freeze-thaw cycles with the stored samples to avoid protein degradation.
Boster Scientific Support
Answered: 2018-01-22
Question
Q: can you tell me how to prepare cell lysates prepared for use in Picokine® ELISA kits?
Verified Customer
Verified customer
Asked: 2016-03-13
Answer
A: for those Picokine® ELISAs where cell or tissue lysate is a validated sample type, sample preparation instructions for lysate are included in the product insert. Components in lysate and lysis buffer may impact immunoreactivity, so if lysate is not a validated sample type, care must be taken in sample preparation and validation.
Boster Scientific Support
Answered: 2016-03-13
Question
Q: how to analyze ELISA data? I measured ST2 level in cell lysates.
Verified Customer
Verified customer
Asked: 2014-05-19
Answer
A: we recommend you 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: 2014-05-19
