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Product Info Summary
| SKU: | EK0981-BV |
|---|---|
| Size: | 96 wells/kit, with removable strips. |
| Reactive Species: | Bovine |
| Application: | ELISA |
| Sample Types: | cell culture supernatants, serum and plasma (heparin, EDTA, citrate). |
Product info
Product Name
Bovine TGF-Beta 2 ELISA Kit PicoKine®
View all TGF-beta 2 ELISA kits
SKU/Catalog Number
EK0981-BV
Size
96 wells/kit, with removable strips.
*Question: How many samples can I assay/run in this kit?
Description
Bovine TGF-Beta 2 ELISA Kit PicoKine® (96 Tests). Quantitate Bovine TGFB2 in cell culture supernatants, serum and plasma (heparin, EDTA, citrate). 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
Bovine TGF-Beta 2 ELISA Kit PicoKine® (Boster Biological Technology, Pleasanton CA, USA, Catalog # EK0981-BV)
Clonality of Antibodies
See Datasheet for details
Standard Protein
Expression system for standard: NS0; Immunogen sequence: A303-S414
Sensitivity
<10 pg/ml
Assay Range
31.2 pg/ml - 2,000 pg/ml
Standard Dilution Instructions
See datasheet of EK0981-BV for more details
Cross-reactivity
There is no detectable cross-reactivity with other relevant proteins.
Reactive Species
EK0981-BV is reactive to TGFB2 in Bovine samples
Validated Sample Types
cell culture supernatants, serum and plasma (heparin, EDTA, citrate).
Application Guarantee
EK0981-BV is guaranteed for ELISA in Bovine by Boster Guarantee
See how Boster Bio validate our ELISA kits: ELISA Validation Information
Background of TGF-beta 2
Transforming growth factor-beta 2 (TGF-beta 2) is a secreted protein known as a cytokine that performs many cellular functions and has a vital role during embryonic development. This gene is mapped to 1q41. It is an extracellular glycosylated protein. It is known to suppress the effects of interleukin dependent T-cell tumors. TGF-beta 2 is present at elevated levels in the aqueous humor of patients with primary open angle glaucoma (POAG). Studies have shown that TGF-beta 2 influences cultured trabecular meshwork cells, and it reduced outflow facility when perfused into cultured Bovine anterior segments. In POAG, elevated expression of Gremlin by TM cells inhibited BMP4 antagonism of TGF-beta 2 and led to increased extracellular matrix deposition and elevated IOP.
Kit Components
| Catalog Number | Description | Quantity |
|---|---|---|
| EK0981-BV-CAP | Anti-Bovine TGFB2 Pre-coated 96-well strip microplate | 1 |
| EK0981-BV-ST | Bovine TGFB2 Standard | 2 vials, 10 ng/tube |
| EK0981-BV-DA | Bovine TGFB2 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
Validation Standard Curve O.D. At 450nm
| Concentration (pg/ml) | 0 | 31.25 | 62.5 | 125 | 250 | 500 | 1000 | 2000 | |
| O.D. | 0.031 | 0.094 | 0.157 | 0.345 | 0.487 | 1.032 | 1.901 | 2.369 |
Data Example Images
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Bovine TGF-beta 2 PicoKine ELISA Kit standard curve
Intra Assay Consistency & Inter Assay Consistency
We measured random samples of Bovine TGF-Beta 2 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) | 221 | 564 | 1145 | 236 | 576 | 1095 |
| Standard deviation | 13.7 | 31.6 | 46.9 | 15.8 | 33.41 | 70.1 |
| CV (%) | 6.2 | 5.6 | 4.1 | 6.7 | 5.8 | 6.4 |
Protein Target Info & Infographic
Gene/Protein Information For TGFB2 (Source: Uniprot.Org, NCBI)
Gene Name
TGFB2
Full Name
Transforming growth factor beta-2 proprotein
Weight
47748 MW
Superfamily
TGF-beta family
Alternative Names
Transforming growth factor beta-2;TGF-beta-2;BSC-1 cell growth inhibitor;Cetermin;Glioblastoma-derived T-cell suppressor factor;G-TSF;Polyergin;Latency-associated peptide;LAP;TGFB2; TGFB2 G-TSF, LDS4, TGF-beta2 transforming growth factor beta 2 transforming growth factor beta-2 proprotein|BSC-1 cell growth inhibitor|cetermin|glioblastoma-derived T-cell suppressor factor|polyergin|prepro-transforming growth factor beta-2
*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 TGFB2, check out the TGFB2 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 TGFB2: 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 Bovine TGF-Beta 2 ELISA Kit PicoKine® (EK0981-BV)
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Customer Q&As
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9 Customer Q&As for Bovine TGF-Beta 2 ELISA Kit PicoKine®
Question
Q: how do I analyze ELISA data? I measured TGF-beta 2 level in plasma.
Verified Customer
Verified customer
Asked: 2020-10-08
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: 2020-10-08
Question
Q: What is the optimal O.D. value for TGF-beta 2 ELISA kit? I used your TGF-beta 2 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 TGF-beta 2 even though the O.D. values are not very high?
Verified Customer
Verified customer
Asked: 2020-05-22
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 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 TGF-beta 2 ELISA kit to have sensitivity of 10pg/ml, that means the minimum amount of TGF-beta 2 that can be declared/interpreted as positive by the above standard is 10pg/ml.
Boster Scientific Support
Answered: 2020-05-22
Question
Q: Are Boster Bio recombinant proteins and antibodies sterile?
Verified Customer
Verified customer
Asked: 2020-04-29
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: 2020-04-29
Question
Q: can you recommend the dilution ratio of serum samples for detection of TGF-beta 2 in Bovine plasma? I am trying to measure a multiple analytes and it requires 100ul of diluted samples for each well. We have limited sample quantitys so we like to dilute as much as possible.
Verified Customer
Verified customer
Asked: 2020-04-20
Answer
A: unable to know 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 TGF-beta 2 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: 2020-04-20
Question
Q: can I use citrate plasma as samples in Bovine TGF-beta 2 Picokine® ELISA Kit (Catalog # EK0981-BV)?
Verified Customer
Verified customer
Asked: 2020-03-17
Answer
A: Chelating agents such as EDTA, Heparin and Citrate can irreversibly bind metal ions from the functional domain of TGF-beta 2 causing degradation of its protein structure. TGF-beta 2 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 TGF-beta 2 ELISA, treating samples with various anticoagulants and decided that heparin, EDTA or citrate can be used for treatment of blood/plasma samples. Do not use other anticoagulents when collecting samples.
Boster Scientific Support
Answered: 2020-03-17
Question
Q: if the enzyme conjugated TGF-beta 2 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 TGF-beta 2 antigen?
M. Chen
Verified customer
Asked: 2020-02-26
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: 2020-02-26
Question
Q: what is the protocol regarding preparation of cell lysates prepared for use in Picokine® ELISA kits?
Z. Thomas
Verified customer
Asked: 2019-04-12
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 affect immunoreactivity, so if lysate is not a validated sample type, care must be taken in sample preparation and validation.
Boster Scientific Support
Answered: 2019-04-12
Question
Q: which procedure should I follow in order to thaw whole blood sample for TGF-beta 2 ELISA after freezing?
Y. Surve
Verified customer
Asked: 2018-11-16
Answer
A: we do not recommend freezing 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 TGF-beta 2 for a later time, you should let the blood clot in glass tubes and separate the serum to freeze for later analysis.
Boster Scientific Support
Answered: 2018-11-16
Question
Q: for how much duration can samples (cell cultures, serum, and plasma) be stored and still be stable for analysis TGF-beta 2 using the EK0981-BV Bovine TGF-beta 2 Picokine® ELISA Kit?
Verified Customer
Verified customer
Asked: 2016-04-26
Answer
A: Boster Bio does not assess sample stability. Variations in sample collection, processing, and storage may change 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: 2016-04-26
