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Product Info Summary
| SKU: | EK0475 |
|---|---|
| Size: | 96 wells/kit, with removable strips. |
| Reactive Species: | Human |
| Application: | ELISA |
| Sample Types: | cell culture supernatants and serum. |
Product info
Product Name
Human NT-4/NTF4/Neurotrophin-4 ELISA Kit PicoKine®
SKU/Catalog Number
EK0475
Size
96 wells/kit, with removable strips.
*Question: How many samples can I assay/run in this kit?
Description
Human NT-4 ELISA Kit PicoKine® (96 Tests). Quantitate Human NTF4 in cell culture supernatants and serum. 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 NT-4/NTF4/Neurotrophin-4 ELISA Kit PicoKine® (Boster Biological Technology, Pleasanton CA, USA, Catalog # EK0475)
Clonality of Antibodies
See Datasheet for details
Standard Protein
Expression system for standard: NS0; Immunogen sequence: G81-A210
Sensitivity
<10 pg/ml
Assay Range
31.2 pg/ml - 2,000 pg/ml
Standard Dilution Instructions
See datasheet of EK0475 for more details
Cross-reactivity
There is no detectable cross-reactivity with other relevant proteins.
Reactive Species
EK0475 is reactive to NTF4 in Human samples
Validated Sample Types
cell culture supernatants and serum.
Application Guarantee
EK0475 is guaranteed for ELISA in Human by Boster Guarantee
See how Boster Bio validate our ELISA kits: ELISA Validation Information
Background of NT-4
Neurotrophin-4 (NT-4), also known as neurotrophin-5 (NT-5), is a protein that in humans is encoded by the NTF4 gene. Human NT-4 as well as a human NT-4 pseudogene colocalize to chromosome 19 band q13.3. NT-4 is a member of a family of neurotrophic factors, the neurotrophins, that control survival and differentiation of vertebrate neurons (2-4). NT-4 is a neurotrophic factor that signals predominantly through the TrkB receptor tyrosine kinase. NT4 plays a physiological role essential for hippocampus- and amygdala-dependent long-term memory and hippocampal long-lasting LTP and that NT4 may be useful in the therapy of acquired disorders of learning and memory.
Kit Components
| Catalog Number | Description | Quantity |
|---|---|---|
| EK0475-CAP | Anti-Human NTF4 Pre-coated 96-well strip microplate | 1 |
| EK0475-ST | Human NTF4 Standard | 2 vials, 10 ng/tube |
| EK0475-DA | Human NTF4 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. | 0.021 | 0.072 | 0.117 | 0.195 | 0.362 | 0.702 | 1.288 | 2.097 |
Data Example Images
Click image to see more details
Human NT-4 PicoKine ELISA Kit standard curve
Intra Assay Consistency & Inter Assay Consistency
We measured random samples of Human NT-4/NTF4/Neurotrophin-4 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) | 94 | 234 | 888 | 93 | 224 | 873 |
| Standard deviation | 6.01 | 13.33 | 69.26 | 7.8%5 | 15.45 | 84.68 |
| CV (%) | 6.4% | 5.7% | 7.8% | 6.4% | 6.9% | 9.7% |
Reproducibility
We ensure reproducibility by testing three samples with differing concentrations of NT-4 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 | 94 | 99 | 93 | 89 | 93 | 3.56 | 3.8% |
| Sample 2 | 234 | 212 | 207 | 213 | 216 | 10.35 | 4.7% |
| Sample 3 | 888 | 924 | 870 | 895 | 894 | 19.44 | 2.1% |
Protein Target Info & Infographic
Gene/Protein Information For NTF4 (Source: Uniprot.Org, NCBI)
Gene Name
NTF4
Full Name
Neurotrophin-4
Weight
22427 MW
Superfamily
NGF-beta family
Alternative Names
Neurotrophin-4;NT-4;Neurotrophin-5;NT-5;Neutrophic factor 4;NTF4;NTF5; NTF4 GLC10, GLC1O, NT-4, NT-4/5, NT-5, NT4, NT5, NTF5 neurotrophin 4 neurotrophin-4|neurotrophic factor 4|neurotrophic factor 5|neurotrophin 5 (neurotrophin 4/5)|neurotrophin-5|neutrophic factor 4
*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 NTF4, check out the NTF4 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 NTF4: 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 NT-4/NTF4/Neurotrophin-4 ELISA Kit PicoKine® (EK0475)
Hello CJ!
EK0475 has been cited in 5 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.
Effect of Sertraline, Dosulepin, and Venlafaxine on Non-BDNF Neurotrophins in Patients With Depression: A Cohort Study
Gestational acrylamide exposure and biomarkers of fetal growth: Probing the mechanism underlying the association between acrylamide and reduced fetal growth
Hogervorst JGF,Saenen ND,Nawrot TS.Gestational acrylamide exposure and biomarkers of fetal growth: Probing the mechanism underlying the association between acrylamide and reduced fetal growth.Environ Int.2021 Jun 11;155:106668.doi:10.1016/j.envint.2021.106668.Epub ahead of print.PMID:34120003.
Species: Human
EK0475 usage in article: APP:ELISA, SAMPLE:SERUM, DILUTION:NA
Live attenuated Salmonella displaying HIV-1 10E8 epitope on fimbriae: systemic and mucosal immune responses in BALB/c mice by mucosal administration
Sun Y, Zhang J, Li C, Wang D, Ma Y, Sun Y, Liu Z, Wang C, Zhou X. Theriogenology. 2012 Jul 1;78(1):39-48. Doi: 10.1016/J.Theriogenology.2012.01.016. Epub 2012 Mar 28. Interaction Between Neurotrophin 4 And Gonadotrophin In Bovine Oviducts.
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Customer Reviews
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Customer Q&As
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Find answers in Q&As, reviews.
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Submit your question
7 Customer Q&As for Human NT-4/NTF4/Neurotrophin-4 ELISA Kit PicoKine®
Question
Q: What is the optimal O.D. value for NT-4 ELISA kit? I performed your NT-4 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 NT-4 even though the O.D. values are not very high?
Verified Customer
Verified customer
Asked: 2020-10-18
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. in the above example, 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 NT-4 ELISA kit to have sensitivity of 10pg/ml, that means the minimum amount of NT-4 that can be declared/interpreted as positive by the above standard is 10pg/ml.
Boster Scientific Support
Answered: 2020-10-18
Question
Q: how much samples can be assayed in a Picokine® ELISA Kit?
B. Green
Verified customer
Asked: 2019-11-15
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: 2019-11-15
Question
Q: Can NT-4 ELISA Kits be used with tissue homogenates (or other non-validated sample types)?
Verified Customer
Verified customer
Asked: 2019-04-26
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 needed. 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 see 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: 2019-04-26
Question
Q: how to analyze ELISA data? I have obtained NT-4 level in serum.
Verified Customer
Verified customer
Asked: 2019-03-16
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: 2019-03-16
Question
Q: if the enzyme conjugated NT-4 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 NT-4 antigen?
Verified Customer
Verified customer
Asked: 2018-10-21
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: 2018-10-21
Question
Q: which procedure should I follow in order to thaw whole blood sample for NT-4 ELISA after freezing?
E. Gonzalez
Verified customer
Asked: 2018-06-27
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 NT-4 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: 2018-06-27
Question
Q: Are Boster Bio recombinant proteins and antibodies sterile?
Verified Customer
Verified customer
Asked: 2016-07-31
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: 2016-07-31
