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Product Info Summary
| SKU: | EK1138 |
|---|---|
| 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 Nesfatin-1/NUCB2/Nucleobindin-2 ELISA Kit PicoKine®
View all Nesfatin-1/Nucleobindin-2 ELISA kits
SKU/Catalog Number
EK1138
Size
96 wells/kit, with removable strips.
*Question: How many samples can I assay/run in this kit?
Description
Human Nesfatin-1 ELISA Kit PicoKine® (96 Tests). Quantitate Human NUCB2 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 Nesfatin-1/NUCB2/Nucleobindin-2 ELISA Kit PicoKine® (Boster Biological Technology, Pleasanton CA, USA, Catalog # EK1138)
Clonality of Antibodies
See Datasheet for details
Standard Protein
Expression system for standard: E.coli; Immunogen sequence: V25-L106
Sensitivity
<10 pg/ml
Assay Range
31.2 pg/ml - 2,000 pg/ml
Standard Dilution Instructions
See datasheet of EK1138 for more details
Cross-reactivity
There is no detectable cross-reactivity with other relevant proteins.
Reactive Species
EK1138 is reactive to NUCB2 in Human samples
Validated Sample Types
cell culture supernatants, cell lysates, serum and plasma (heparin, EDTA).
Application Guarantee
EK1138 is guaranteed for ELISA in Human by Boster Guarantee
See how Boster Bio validate our ELISA kits: ELISA Validation Information
Background of Nesfatin-1/Nucleobindin-2
Nesfatin-1 is a naturally occurring protein molecule produced by the brains of mammals. It is responsible for regulating appetite and production of body fat. Nesfatin-1 is a metabolic polypeptide encoded in the N-terminal region of the protein precursor, Nucleobindin2 (NUCB2). Recombinant human Nesfatin-1 is a 9.7 kDa protein containing 82 amino acid residues. Originally identified as a hypothalamic neuropeptide, Nesfatin-1 is also expressed in other areas of the brain, and in pancreatic islets of Langerhans, gastric endocrine cells and adipocytes. Nesfatin-1 plays a role in hunger and energy regulation in an independent manner.
Kit Components
| Catalog Number | Description | Quantity |
|---|---|---|
| EK1138-CAP | Anti-Human NUCB2 Pre-coated 96-well strip microplate | 1 |
| EK1138-ST | Human NUCB2 Standard | 2 vials, 2 ng/tube |
| EK1138-DA | Human NUCB2 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 | 31.2 | 62.5 | 125 | 250 | 500 | 1000 | 2000 |
| O.D. | 0.032 | 0.086 | 0.106 | 0.196 | 0.432 | 0.755 | 1.370 | 2.094 |
Data Example Images
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Human Nesfatin-1 PicoKine ELISA Kit standard curve
Recommended Sample Dilution Ratios
According to our internal validation assays using this ELISA kit, to detect Nesfatin-1/Nucleobindin-2, Dilution ratio of 1:1, concentration in serum and plasma is less than the lowest standard, 31.2 pg/ml..
Some articles we found to cite concentrations of Nesfatin-1/Nucleobindin-2 in samples: 24333832 (Pubmed IDs).
Intra Assay Consistency & Inter Assay Consistency
We measured random samples of Human Nesfatin-1/NUCB2/Nucleobindin-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) | 58 | 278 | 993 | 62 | 286 | 1045 |
| Standard deviation | 2.55 | 17.51 | 57.20 | 3.41 | 20.59 | 74.19 |
| CV (%) | 4.4% | 7.2% | 5.6% | 5.5% | 7.2% | 7.1% |
Reproducibility
We ensure reproducibility by testing three samples with differing concentrations of Nesfatin-1/Nucleobindin-2 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 | 58 | 50 | 49 | 55 | 53 | 3.67 | 6.9% |
| Sample 2 | 278 | 249 | 272 | 250 | 262 | 12.93 | 4.9% |
| Sample 3 | 993 | 1004 | 914 | 846 | 939 | 64.06 | 6.8% |
Protein Target Info & Infographic
Gene/Protein Information For NUCB2 (Source: Uniprot.Org, NCBI)
Gene Name
NUCB2
Full Name
Nucleobindin-2
Weight
50196 MW
Superfamily
nucleobindin family
Alternative Names
Nucleobindin-2;DNA-binding protein NEFA;Gastric cancer antigen Zg4;Prepronesfatin;Nesfatin-1;NUCB2;NEFA; NUCB2 HEL-S-109, NEFA nucleobindin 2 nucleobindin-2|DNA-binding protein NEFA|epididymis secretory protein Li 109|gastric cancer Zg4|nesfatin 1|novel DNA binding/EF-hand/leucine zipper protein|nucleobinding 2|prepronesfatin
*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 NUCB2, check out the NUCB2 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 NUCB2: 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 Nesfatin-1/NUCB2/Nucleobindin-2 ELISA Kit PicoKine® (EK1138)
Hello CJ!
EK1138 has been cited in 10 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.
The Relationship between Nesfatin-1 Levels and SYNTAX Score in Patients with Non-ST Segment Elevation Myocardial Infarction
Nesfatin-1 levels in patients with slow coronary flow.
Nesfatin-1 and irisin levels in response to the soccer matches performed in morning, afternoon and at night in young trained male subjects
Changes in ghrelin and nesfatin-1 in children with growth hormone deficiency treated by recombinant human growth hormone:
Increased serum nesfatin-1 levels in patients with inflammatory bowel diseases
Nesfatin-1: A novel regulatory peptide associated with acute myocardial infarction and Mediterranean diet
The Relationship between Nesfatin-1 Levels and SYNTAX Score in Patients with Non-ST Segment Elevation Myocardial Infarction
Increased concentrations of serum nesfatin-1 levels in childhood with idiopathic chronic malnutrition
Algul S, Ozdenk C, Ozcelik O. Biol Sport. 2017 Dec;34(4):339-344. doi: 10.5114/biolsport.2017.69821. Epub 2017 Sep 20. Variations in leptin, nesfatin-1 and irisin levels induced by aerobic exercise in young trained and untrained male subjects
??atl?? G, An??k A, K??me T, ??alan ??g, D??ndar Bn, B??ber E, Abac?? A. J Endocrinol Invest. 2015 Aug;38(8):909-13. Doi: 10.1007/S40618-015-0277-8. Epub 2015 Apr 2. Serum Nesfatin-1 And Leptin Levels In Non-Obese Girls With Premature Thelarche.
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Customer Reviews
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Customer Q&As
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3 Customer Q&As for Human Nesfatin-1/NUCB2/Nucleobindin-2 ELISA Kit PicoKine®
Question
Q: Can Nesfatin-1 ELISA Kits be used with tissue homogenates (or other non-validated sample types)?
T. Singh
Verified customer
Asked: 2020-07-04
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 suitable 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 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: 2020-07-04
Question
Q: Are Boster Bio recombinant proteins and antibodies sterile?
Verified Customer
Verified customer
Asked: 2019-07-17
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 required for an experiment, the material can be filtered through a 0.2 micron filter designed for use with biological fluids.
Boster Scientific Support
Answered: 2019-07-17
Question
Q: how can I thaw whole blood sample for Nesfatin-1 ELISA after freezing?
Verified Customer
Verified customer
Asked: 2019-03-01
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 Nesfatin-1 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: 2019-03-01
