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Product Info Summary
| SKU: | EK1890 |
|---|---|
| Size: | 96 wells/kit, with removable strips. |
| Reactive Species: | Human |
| Application: | ELISA |
| Sample Types: | cell culture supernatants, serum and plasma (heparin, EDTA). |
Product info
Product Name
Human P4HB ELISA Kit PicoKine®
View all Protein Disulfide Isomerase/P4HB ELISA kits
SKU/Catalog Number
EK1890
Size
96 wells/kit, with removable strips.
*Question: How many samples can I assay/run in this kit?
Description
Human P4HB ELISA Kit PicoKine® (96 Tests). Quantitate Human P4HB in cell culture supernatants, serum and plasma (heparin, EDTA). Sensitivity: 15pg/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 P4HB ELISA Kit PicoKine® (Boster Biological Technology, Pleasanton CA, USA, Catalog # EK1890)
Clonality of Antibodies
See Datasheet for details
Standard Protein
Expression system for standard: NS0; Immunogen sequence: D18-L508
Sensitivity
<15 pg/ml
Assay Range
93.8 pg/ml - 6,000 pg/ml
Standard Dilution Instructions
See datasheet of EK1890 for more details
Cross-reactivity
There is no detectable cross-reactivity with other relevant proteins.
Reactive Species
EK1890 is reactive to P4HB in Human samples
Validated Sample Types
cell culture supernatants, serum and plasma (heparin, EDTA).
Application Guarantee
EK1890 is guaranteed for ELISA in Human by Boster Guarantee
See how Boster Bio validate our ELISA kits: ELISA Validation Information
Background of Protein Disulfide Isomerase/P4HB
P4HB is a multifunctional and highly abundant enzyme that is part of the protein disulfide isomerase family. It is mapped to 17q25.3. When present as a tetramer consisting of two alpha and two beta subunits, P4HB has a role in hydroxylation of prolyl residues in preprocollagen. P4HB is a disulfide isomerase containing two thioredoxin domains that catalyze the formation, breakage and rearrangement of disulfide bonds.
Kit Components
| Catalog Number | Description | Quantity |
|---|---|---|
| EK1890-CAP | Anti-Human P4HB Pre-coated 96-well strip microplate | 1 |
| EK1890-ST | Human P4HB Standard | 2 vials, 10 ng/tube |
| EK1890-DA | Human P4HB 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 | 93.8 | 187.5 | 375 | 750 | 1500 | 3000 | 6000 |
| O.D. | 0.020 | 0.081 | 0.154 | 0.259 | 0.522 | 0.837 | 1.495 | 2.314 |
Data Example Images
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Human P4HB PicoKine ELISA Kit standard curve
Recommended Sample Dilution Ratios
According to our internal validation assays using this ELISA kit, to detect Protein Disulfide Isomerase/P4HB, Dilution ratio of 1:5, concentration in serum and plasma is 2000-4000 pg/ml..
Intra Assay Consistency & Inter Assay Consistency
We measured random samples of Human P4HB 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) | 155 | 785 | 2454 | 177 | 790 | 2763 |
| Standard deviation | 8.84 | 55.74 | 107.98 | 10.09 | 48.19 | 212.75 |
| CV (%) | 5.7% | 7.1% | 4.4% | 5.7% | 6.1% | 7.7% |
Reproducibility
We ensure reproducibility by testing three samples with differing concentrations of Protein Disulfide Isomerase/P4HB 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 | 155 | 171 | 167 | 157 | 162 | 6.68 | 4.1% |
| Sample 2 | 785 | 728 | 688 | 729 | 732 | 34.52 | 4.7% |
| Sample 3 | 2454 | 2351 | 2283 | 2430 | 2379 | 67.50 | 2.8% |
Protein Target Info & Infographic
Gene/Protein Information For P4HB (Source: Uniprot.Org, NCBI)
Gene Name
P4HB
Full Name
Protein disulfide-isomerase
Weight
57.116kDa
Superfamily
protein disulfide isomerase family
Alternative Names
Protein disulfide-isomerase; PDI; Cellular thyroid hormone-binding protein; Prolyl 4-hydroxylase subunit beta; p55; P4HB; ERBA2L; PDI; PDIA1; PO4DB P4HB CLCRP1, DSI, ERBA2L, GIT, P4Hbeta, PDI, PDIA1, PHDB, PO4DB, PO4HB, PROHB prolyl 4-hydroxylase subunit beta protein disulfide-isomerase|cellular thyroid hormone-binding protein|collagen prolyl 4-hydroxylase beta|glutathione-insulin transhydrogenase|p55|procollagen-proline, 2-oxoglutarate 4-dioxygenase (proline 4-hydroxylase), beta polypeptide|prolyl 4-hydroxylase, beta polypeptide|protein disulfide isomerase family A, member 1|protein disulfide isomerase-associated 1|protein disulfide isomerase/oxidoreductase|protocollagen hydroxylase|testicular secretory protein Li 32|thyroid hormone-binding protein p55
*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 P4HB, check out the P4HB 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 P4HB: 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 P4HB ELISA Kit PicoKine® (EK1890)
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Customer Reviews
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Customer Q&As
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6 Customer Q&As for Human P4HB ELISA Kit PicoKine®
Question
Q: if the enzyme conjugated P4HB 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 P4HB antigen?
Verified Customer
Verified customer
Asked: 2019-08-03
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: 2019-08-03
Question
Q: is there any online tool I can use to streamline the data analysis for my ELISA results?
Verified Customer
Verified customer
Asked: 2018-12-27
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: 2018-12-27
Question
Q: Are Boster Bio recombinant proteins and antibodies sterile?
R. Liu
Verified customer
Asked: 2018-07-16
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: 2018-07-16
Question
Q: can I use citrate plasma as samples in Human P4HB Picokine® ELISA Kit (Catalog # EK1890)?
Verified Customer
Verified customer
Asked: 2018-02-10
Answer
A: Chelating agents such as EDTA, Heparin and Citrate can irreversibly bind metal ions from the functional domain of P4HB causing degradation of its protein structure. P4HB 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 P4HB 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: 2018-02-10
Question
Q: What is the optimal O.D. value for P4HB ELISA kit? I used your P4HB 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 P4HB even though the O.D. values are not very high?
A. Campbell
Verified customer
Asked: 2018-01-13
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 your 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 proportion 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 P4HB ELISA kit to have sensitivity of 15pg/ml, that means the minimum amount of P4HB that can be declared/interpreted as positive by the above standard is 15pg/ml.
Boster Scientific Support
Answered: 2018-01-13
Question
Q: how are cell lysates prepared for use in Picokine® ELISA kits?
Verified Customer
Verified customer
Asked: 2015-01-16
Answer
A: in 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 may impact immunoreactivity, so if lysate is not a validated sample type, care must be taken in sample preparation and validation.
Boster Scientific Support
Answered: 2015-01-16
