Overview
| Product Name |
Human TNFSF4/OX40L ELISA Kit PicoKine™
See more OX40 Ligand/TNFSF4 products |
| Catalog# |
EK0857 |
| Storage & Handling |
Store at -20˚C for one year from date of receipt. After reconstitution, at 4˚C for one month. It can also be aliquotted and stored frozen at -20˚C for six months. Avoid repeated freeze-thaw cycles. |
| Description |
Human TNFSF4/OX40L ELISA Kit PicoKine™ (96 Tests). Quantitate Human TNFSF4 in cell culture supernatants, cell lysates, serum and plasma (heparin, EDTA).. Sensitivity: 10pg/ml. |
| Cite This Product |
Human TNFSF4/OX40L ELISA Kit PicoKine™ (Boster Biological Technology, Pleasanton CA, USA, Catalog # EK0857)
|
| ELISA Validation |
ELISA Validation Information
|
Product Specs
| Reactivity/Species |
Human |
| Applications |
ELISA
*Our Boster Guarantee covers the use of this product in the above
tested applications.
**For positive and negative control design, consult "Tissue specificity" under
"Protein Target Info" tab. |
| Sample Type |
cell culture supernatants, cell lysates, serum and plasma (heparin, EDTA). |
| Sensitivity |
<10 pg/ml |
| Assay Range |
156 pg/ml - 10,000 pg/ml |
| Immunogen/Standard |
Expression system for standard: NS0; Immunogen sequence: Q51-L183 |
| Antibody Clonalities |
Capture antibody|Detection antibody
monoclonal antibody from mouse|polyclonal antibody from goat |
| Cross Reactivity |
There is no detectable cross-reactivity with other relevant proteins. |
| Pack Size |
96 wells/kit, with removable strips. |
Gene/Protein Basic Information For TNFSF4 (Source: Uniprot.org, NCBI)
| Uniprot Id | P23510 |
|---|
| NCBI Gene Id | 7292 |
|---|
| Species Of This Entry | Human |
|---|
| Gene Name | TNFSF4 |
|---|
| Protein Name | Tumor necrosis factor ligand superfamily member 4 |
|---|
| Superfamily | tumor necrosis factor family |
|---|
| Alternative Names | OX40 Ligand/TNFSF4|CD134 ligand; CD134L; CD252 antigen; CD252; Glycoprotein Gp34; gp34; OX40 antigen ligand; OX40 Ligand; OX40L; OX-40L; OX4OL; TAX transcriptionally-activated glycoprotein 1; tax-transcriptionally activated glycoprotein 1 (34kD); tax-transcriptionally activated glycoprotein 1, 34kD; TNFSF4; tumor necrosis factor (ligand) superfamily, member 4; tumor necrosis factor ligand superfamily member 4; TXGP1 |
|---|
| Molecular Weight | 21050 |
|---|
*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 TNFSF4, check out the TNFSF4 Infographic
We have 30,000+ of these available, one for each gene! Check them out.
Want a nice infographic on your next protein? Boster's got them all. All proteins in the human genome, and some, can be found in the Boster Bio gene infographics. Download it and share it with your colleagues and friends. Big size posters available upon request.
In this infographic you will see the following information for TNFSF4: 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. Some times it even contains some opt-ed articles the Boster team on the scientific news and clinical impacts of this protein, though not all have that. Too many proteins, you know.
Take me to the TNFSF4 infographic
Kit Components And Assay QC Data Details Of Human TNFSF4/OX40L ELISA Kit PicoKine™
*The quality control (QC) data in this section is obtained from Boster's internal QC results and is for reference only. It may differ from the users' lab test results. The users can expect to generate data with similar linearity and quality demonstrated in the typical data but may not achieve exactly the same O.D. values.
| Catalog number | Description | Quantity |
| EK0857-CAP |
Anti-Human TNFSF4 Pre-coated 96-well strip microplate | 1 |
| EK0857-ST | Human TNFSF4 Standard | 2 vials, 10 ng/tube |
| EK0857-DA | Human TNFSF4 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.
- Microplate Reader capable of reading absorbance at 450nm.
- 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.
This data is generated from a recent batch of EK0857 Human TNFSF4/OX40L ELISA Kit PicoKine™. It is not necessarily the same data set used to generate the standard curve shown in the image of this product. TMB reaction incubate at 37°C for 15-25min
| Concentration (pg/ml) | 0 | 156 | 312 | 625 | 1250 | 2500 | 5000 | 10000 |
| O.D. | 0.056 | 0.138 | 0.238 | 0.365 | 0.657 | 1.151 | 1.648 | 2.230 |
We measured random samples of Human TNFSF4/OX40L 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) | 209 | 1225 | 4641 | 228 | 1277 | 4885 |
| Standard deviation | 8.56 | 51.45 | 305.70 | 12.54 | 72.78 | 365.77 |
| CV (%) | 4.1% | 4.2% | 6.6% | 5.5% | 5.7% | 7.5% |
We measured the performance consistency of Human TNFSF4/OX40L ELISA Kit PicoKine™ to ensure the reproducibility of the assays. Three samples with differing target protein concentrations were assayed using four different lots.
Reproducibility
To assay reproducibility, three samples with differing target protein concentrations were assayed using four different 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 | 209 | 197 | 197 | 202 | 201 | 4.91 | 2.4% |
| Sample 2 | 1225 | 1132 | 1200 | 1122 | 1169 | 43.79 | 3.7% |
| Sample 3 | 4641 | 5209 | 4997 | 5343 | 5047 | 265.13 | 5.2% |
*number of samples for each test n=16.
Specific Protocols
Boster provides comprehensive technical information for WB, IHC/IF/ICC, Flow Cytometry sample preparation protocols, assay protocols, troubleshooting tips and assay optimization tips.
Other Recommended Resources
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Questions and answers from customers related to EK0857 Human TNFSF4/OX40L ELISA Kit PicoKine™
6 Related Questions
Question
Q: Are Boster Bio recombinant proteins and antibodies sterile?
Verified Customer
Asked: 2020-04-25
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 a must for an experiment, the material can be filtered through a 0.2 micron filter designed for use with biological fluids.
Boster Scientific Support
Answered: 2020-04-25
Question
Q: how much samples can be assayed in a Picokine® ELISA Kit?
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: 2019-12-31
Question
Q: What is the optimal O.D. value for OX40 Ligand ELISA kit? I performed your OX40 Ligand 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 OX40 Ligand even though the O.D. values are not very high?
Verified Customer
Asked: 2019-07-23
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. a point of focus 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. typically, 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 converting 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 OX40 Ligand ELISA kit to have sensitivity of 10pg/ml, that means the minimum amount of OX40 Ligand that can be declared/interpreted as positive by the above standard is 10pg/ml.
Boster Scientific Support
Answered: 2019-07-23
Question
Q: if the enzyme conjugated OX40 Ligand 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 OX40 Ligand antigen?
Verified Customer
Asked: 2018-07-23
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: 2018-07-23
Question
Q: can I use citrate plasma as samples in Human OX40 Ligand Picokine® ELISA Kit (Catalog # EK0857)?
Verified Customer
Asked: 2017-05-19
Answer
A: Chelating agents such as EDTA, Heparin and Citrate can bind metal ions from the functional domain of OX40 Ligand causing disruption of its protein structure. OX40 Ligand 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 OX40 Ligand 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: 2017-05-19
Question
Q: how are cell lysates prepared for use in Picokine® ELISA kits?
K. Roberts
Asked: 2014-12-22
Answer
A: for 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 have an affect on immunoreactivity, so if lysate is not a validated sample type, care must be taken in sample preparation and validation.
Boster Scientific Support
Answered: 2014-12-22
