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Product Info Summary
| SKU: | EK1997 |
|---|---|
| Size: | 96 wells/kit, with removable strips. |
| Reactive Species: | Human |
| Application: | ELISA |
| Sample Types: | cell culture supernatants, serum, plasma (heparin or EDTA) and urine |
Product info
Product Name
Human PSG1 ELISA Kit PicoKine®
SKU/Catalog Number
EK1997
Size
96 wells/kit, with removable strips.
*Question: How many samples can I assay/run in this kit?
Description
Human PSG1 ELISA Kit PicoKine® (96 Tests). Quantitate Human PSG1 in cell culture supernatants, serum, plasma (heparin or EDTA) and urine. Sensitivity: 50pg/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 PSG1 ELISA Kit PicoKine® (Boster Biological Technology, Pleasanton CA, USA, Catalog # EK1997)
Clonality of Antibodies
See Datasheet for details
Standard Protein
Expression system for standard: NS0; Immunogen sequence: Q35-P419
Sensitivity
<50 pg/ml
Assay Range
1.56 ng/ml - 100 ng/ml
Standard Dilution Instructions
See datasheet of EK1997 for more details
Cross-reactivity
There is no detectable cross-reactivity with other relevant proteins.
Reactive Species
EK1997 is reactive to PSG1 in Human samples
Validated Sample Types
cell culture supernatants, serum, plasma (heparin or EDTA) and urine
Application Guarantee
EK1997 is guaranteed for ELISA in Human by Boster Guarantee
See how Boster Bio validate our ELISA kits: ELISA Validation Information
Background of PSG1
The PSG1 is a semi-automatic sniper rifle， Pregnancy-specific beta-1 glycoprotein 1 (PSG-1) is also known as SP1, PSbG1, or B1G1, and is designated CD66f. It is mapped to 19q13.2. The human placenta is a multihormonal endocrine organ that produces hormones, enzymes, and other molecules that support fetal survival and development. Pregnancy-specific beta-1-glycoprotein (PSBG, PSG) is a major product of the syncytiotrophoblast, reaching concentrations of 100 to 290 mg/l at term in the serum of pregnant women. PSG is a member of the immunoglobulin (Ig) superfamily.
Kit Components
| Catalog Number | Description | Quantity |
|---|---|---|
| EK1997-CAP | Anti-Human PSG1 Pre-coated 96-well strip microplate | 1 |
| EK1997-ST | Human PSG1 Standard | 2 vials, 100 ng/tube |
| EK1997-DA | Human PSG1 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 (ng/ml) | 0 | 1.56 | 3.12 | 6.25 | 12.5 | 25 | 50 | 100 |
| O.D. | 0.013 | 0.082 | 0.164 | 0.313 | 0.466 | 0.796 | 1.403 | 2.156 |
Data Example Images
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Human PSG1 PicoKine ELISA Kit Standard Curve
Recommended Sample Dilution Ratios
According to our internal validation assays using this ELISA kit, to detect PSG1, Dilution ratio of 1:100, concentration in serum and plasma is around 1.25 ug/ml..
Intra Assay Consistency & Inter Assay Consistency
We measured random samples of Human PSG1 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) | 2327 | 9714 | 48035 | 2915 | 11475 | 48927 |
| Standard deviation | 114.02 | 456.56 | 1969.44 | 163.24 | 585.23 | 3229.18 |
| CV (%) | 4.9% | 4.7% | 4.1% | 5.6% | 5.1% | 6.6% |
Reproducibility
We ensure reproducibility by testing three samples with differing concentrations of PSG1 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 | 2327 | 2279 | 2306 | 2344 | 2314 | 24.27 | 1.0% |
| Sample 2 | 9714 | 10138 | 10569 | 10990 | 10352 | 476.17 | 4.5% |
| Sample 3 | 48035 | 41237 | 47332 | 49070 | 46418 | 3054.74 | 6.5% |
Protein Target Info & Infographic
Gene/Protein Information For PSG1 (Source: Uniprot.Org, NCBI)
Gene Name
PSG1
Full Name
Pregnancy-specific beta-1-glycoprotein 1
Weight
47.223kDa
Superfamily
immunoglobulin superfamily
Alternative Names
Pregnancy-specific beta-1-glycoprotein 1; PS-beta-G-1; PSBG-1; Pregnancy-specific glycoprotein 1; CD66 antigen-like family member F; Fetal liver non-specific cross-reactive antigen 1/2; FL-NCA-1/2; PSG95; Pregnancy-specific beta-1 glycoprotein C/D; PS-beta-C/D; CD66f; PSG1; B1G1; PSBG; PSGGA PSG1 B1G1, CD66f, DHFRP2, FL-NCA-1/2, PBG1, PS-beta-C/D, PS-beta-G-1, PSBG-1, PSBG1, PSG95, PSGGA, PSGIIA, SP1 pregnancy specific beta-1-glycoprotein 1 pregnancy-specific beta-1-glycoprotein 1|CD66 -like family member F|fetal liver non-specific cross-reactive 1/2|pregnancy-specific B-1 glycoprotein|pregnancy-specific beta-1 glycoprotein C/D
*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 PSG1, check out the PSG1 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 PSG1: 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 PSG1 ELISA Kit PicoKine® (EK1997)
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Customer Reviews
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Customer Q&As
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6 Customer Q&As for Human PSG1 ELISA Kit PicoKine®
Question
Q: how can I thaw whole blood sample for PSG1 ELISA after freezing?
B. Huang
Verified customer
Asked: 2020-12-20
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 PSG1 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: 2020-12-20
Question
Q: what is the protocol regarding preparation of cell lysates prepared for use in Picokine® ELISA kits?
Verified Customer
Verified customer
Asked: 2020-02-27
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 may affect immunoreactivity, so if lysate is not a validated sample type, care must be taken in sample preparation and validation.
Boster Scientific Support
Answered: 2020-02-27
Question
Q: is there any online tool I can use to streamline the data analysis for my ELISA results?
K. Thompson
Verified customer
Asked: 2019-05-12
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: 2019-05-12
Question
Q: Can PSG1 ELISA Kits be used with tissue homogenates (or other non-validated sample types)?
Verified Customer
Verified customer
Asked: 2018-12-27
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 evaluated 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 check 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: 2018-12-27
Question
Q: What is the optimal O.D. value for PSG1 ELISA kit? I used your PSG1 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 PSG1 even though the O.D. values are not very high?
Verified Customer
Verified customer
Asked: 2018-06-04
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. what you should focus on 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. normally, 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 PSG1 ELISA kit to have sensitivity of 50pg/ml, that means the minimum amount of PSG1 that can be declared/interpreted as positive by the above standard is 50pg/ml.
Boster Scientific Support
Answered: 2018-06-04
Question
Q: if the enzyme conjugated PSG1 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 PSG1 antigen?
Verified Customer
Verified customer
Asked: 2016-06-27
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: 2016-06-27
