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Product Info Summary
| SKU: | EK1561 |
|---|---|
| Size: | 96 wells/kit, with removable strips. |
| Reactive Species: | Rat |
| Application: | ELISA |
| Sample Types: | cell culture supernatants, cell lysates, serum and plasma (heparin, EDTA). |
Product info
Product Name
Rat GDF-15 ELISA Kit PicoKine®
SKU/Catalog Number
EK1561
Size
96 wells/kit, with removable strips.
*Question: How many samples can I assay/run in this kit?
Description
Rat GDF-15 ELISA Kit PicoKine® (96 Tests). Quantitate Rat Gdf15 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
Rat GDF-15 ELISA Kit PicoKine® (Boster Biological Technology, Pleasanton CA, USA, Catalog # EK1561)
Clonality of Antibodies
See Datasheet for details
Standard Protein
Expression system for standard: NS0; Immunogen sequence: S189-A303
Capture/Detection Antibodies
The capture antibody is monoclonal antibody from mouse and the detection antibody is polyclonal antibody from goat.
Sensitivity
<10 pg/ml
Assay Range
15.6 pg/ml - 1,000 pg/ml
Standard Dilution Instructions
See datasheet of EK1561 for more details
Cross-reactivity
There is no detectable cross-reactivity with other relevant proteins.
Reactive Species
EK1561 is reactive to Gdf15 in Rat samples
Validated Sample Types
cell culture supernatants, cell lysates, serum and plasma (heparin, EDTA).
Application Guarantee
EK1561 is guaranteed for ELISA in Rat by Boster Guarantee
See how Boster Bio validate our ELISA kits: ELISA Validation Information
Background of Gdf15
GDF-15 (Growth differentiation factor 15), also known as TGF-PL, MIC-1, PLAB, and PTGFB, is a protein belonging to the transforming growth factor beta superfamily that has a role in regulating inflammatory and apoptotic pathways in injured tissues and during disease processes. Its expression in liver can be significantly up-regulated in during injury of organs such as liver, kidney, heart and lung. GDF15 showed increased expression and secretion during erythroblast maturation. GDF15 functions as an antiinflammatory cytokine by directly interfering with chemokine signaling and integrin activation.
Kit Components
| Catalog Number | Description | Quantity |
|---|---|---|
| EK1561-CAP | Anti-Rat Gdf15 Pre-coated 96-well strip microplate | 1 |
| EK1561-ST | Rat Gdf15 Standard | 2 vials, 1 ng/tube |
| EK1561-DA | Rat Gdf15 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 | 15.6 | 31.2 | 62.5 | 125 | 250 | 500 | 1000 |
| O.D. | 0.006 | 0.117 | 0.212 | 0.381 | 0.6257 | 1.064 | 1.476 | 1.917 |
Data Example Images
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Rat GDF-15 PicoKine ELISA Kit standard curve
Recommended Sample Dilution Ratios
According to our internal validation assays using this ELISA kit, to detect Gdf15, Dilution ratio of 1:1, concentration in serum and plasma is around 90 pg/ml..
Intra Assay Consistency & Inter Assay Consistency
We measured random samples of Rat GDF-15 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) | 28 | 247 | 440 | 26 | 269 | 409 |
| Standard deviation | 1.31 | 10.12 | 18.92 | 1.37 | 13.18 | 22.9 |
| CV (%) | 4.7% | 4.1% | 4.3% | 5.3% | 4.9% | 5.6% |
Specific Publications For Rat GDF-15 ELISA Kit PicoKine® (EK1561)
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Customer Reviews
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Customer Q&As
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11 Customer Q&As for Rat GDF-15 ELISA Kit PicoKine®
Question
Q: how many samples can be assayed in a Picokine® ELISA Kit?
Verified Customer
Verified customer
Asked: 2020-10-06
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: 2020-10-06
Question
Q: if the enzyme conjugated GDF-15 antibodies are mixed with the substrate, will that convert the substrate into the enzymatic reaction product? Or the enzyme function is only activated when the antibody is attached with the GDF-15 antigen?
Verified Customer
Verified customer
Asked: 2020-09-10
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: 2020-09-10
Question
Q: which procedure should I follow in order to thaw whole blood sample for GDF-15 ELISA after freezing?
B. Walker
Verified customer
Asked: 2020-05-25
Answer
A: do not freeze and thaw whole blood. erythrocytes are fragile and, if frozen and thawed, will undergo hemolysis rendering the samples useless. To keep your blood samples to test GDF-15 for a later time, you should let the blood clot in glass tubes and collect the serum to freeze for later use.
Boster Scientific Support
Answered: 2020-05-25
Question
Q: how long can samples (cell cultures, serum, and plasma) be stored and still be stable for quantification GDF-15 using the EK1561 Rat GDF-15 Picokine® ELISA Kit?
Verified Customer
Verified customer
Asked: 2019-12-04
Answer
A: Boster Bio does not assess sample stability. Variations in sample collection, processing, and storage may alter the stabilityof samples. It is recommend to assay sample immediately after collection when possible, or aliquot into single use volumes and store samples frozen. avoid repetitive freeze-thaw cycles with the stored samples to limit protein degradation.
Boster Scientific Support
Answered: 2019-12-04
Question
Q: is there any online tool I can use to streamline the data analysis for my ELISA results?
Verified Customer
Verified customer
Asked: 2019-08-13
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: 2019-08-13
Question
Q: can I use citrate plasma as samples in Rat GDF-15 Picokine® ELISA Kit (Catalog # EK1561)?
Verified Customer
Verified customer
Asked: 2019-07-23
Answer
A: Chelating agents such as EDTA, Heparin and Citrate can sequester metal ions from the functional domain of GDF-15 causing disruption of its protein structure. GDF-15 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 GDF-15 ELISA, treating samples with a number of 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: 2019-07-23
Question
Q: how to proceed with the analysis of ELISA data? I have performed GDF-15 level in cell lysates.
K. Adams
Verified customer
Asked: 2019-05-17
Answer
A: please read this article on ELISA data analysis. bosterbio.com/elisa-data-analysis-instructions. Boster also provides a free tool that you can use to analyze ELISA data. bosterbio.com/biology-research-tools/elisa-data-analysis-online
Boster Scientific Support
Answered: 2019-05-17
Question
Q: we need your suggestion regarding the dilution ratio of serum samples for detection of GDF-15 in Rat cell lysates? I am trying to measure a multiple analytes and it requires 100ul of diluted samples for each well. We have low serum quantitys so we like to dilute as much as possible.
H. Parker
Verified customer
Asked: 2019-02-23
Answer
A: having little idea about the physiological or pathological context of your samples we cannot recommend a dilution ratio without performing a pilot test with your samples. Here is how you can perform a pilot study on your own: perform a serial dilution of your samples on the GDF-15 ELISA kit to make sure you have a linear ascending curve followed by a plateau, which signifies the samples saturating the detection limit of the kit. Then you can pick the dilution ratios from samples in the linear part of the curve as your experimental dilution ratio.
If you are interested in using our ELISA service, you can also send us your sample and we will take care of everything for you. You can check our service details here: bosterbio.com/services/assay-services/elisa-testing-service
Since you mentioned you have limited samples, our cost effective multiplex ELISA service would fit perfectly for your needs, where we can generate dozens of data points using as little as 25ul sample volume. Information on this service is also in the above link.
Boster Scientific Support
Answered: 2019-02-23
Question
Q: What is the optimal O.D. value for GDF-15 ELISA kit? I used your GDF-15 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. is it safe to say these samples contain GDF-15 even though the O.D. values are not very high?
K. Young
Verified customer
Asked: 2019-01-05
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 relation 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 GDF-15 ELISA kit to have sensitivity of 10pg/ml, that means the minimum amount of GDF-15 that can be declared/interpreted as positive by the above standard is 10pg/ml.
Boster Scientific Support
Answered: 2019-01-05
Question
Q: Can GDF-15 ELISA Kits be used with tissue homogenates (or other non-validated sample types)?
Verified Customer
Verified customer
Asked: 2018-01-28
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: 2018-01-28
Question
Q: how are cell lysates prepared for use in Picokine® ELISA kits?
Verified Customer
Verified customer
Asked: 2016-08-15
Answer
A: for those Picokine® ELISAs where cell or tissue lysate is a validated sample type, sample preparation instructions for lysate can be found 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: 2016-08-15
