Human Pappalysin-1/PAPP-A Quantikine ELISA Kit
R&D Systems, part of Bio-Techne | Catalog # DPPA00
Key Product Details
Assay Length
5.5 hours
Sample Type & Volume Required Per Well
Cell Culture Supernates (50 µL), Serum (50 µL), EDTA Plasma (50 µL), Heparin Plasma (50 µL)
Sensitivity
0.116 ng/mL
Assay Range
0.78-50 ng/mL (Cell Culture Supernates, Serum, EDTA Plasma, Heparin Plasma)
Product Summary for Human Pappalysin-1/PAPP-A Quantikine ELISA Kit
The Quantikine Human PAPP-A Immunoassay is a 5.5 hour sandwich-type solid phase ELISA designed to measure human PAPP-A in cell culture supernates, serum, and plasma. It contains NS0-expressed recombinant human PAPP-A and has been shown to accurately quantitate the recombinant factor. Results obtained using natural human PAPP-A showed linear curves that were parallel to the standard curves obtained using the Quantikine kit standards. These results indicate that this kit can be used to determine relative mass values for naturally occurring PAPP-A.
Product Specifications
Assay Type
Solid Phase Sandwich ELISA
Format
96-well strip plate
Measurement
Quantitative ELISA
Detection Method
Colorimetric - 450nm (TMB)
Conjugate
HRP
Reactivity
Human
Specificity
Natural and recombinant human PAPP-A
Cross-reactivity
< 0.5% cross-reactivity observed with available related molecules. Cross-species reactivity not tested.
Interference
No significant interference observed with available related molecules.
Precision
Intra-Assay Precision (Precision within an assay) Three samples of known concentration were tested on one plate to assess intra-assay precision.
Inter-Assay Precision (Precision between assays) Three samples of known concentration were tested in separate assays to assess inter-assay precision.
Cell Culture Supernates, EDTA Plasma, Heparin Plasma, Serum
| Intra-Assay Precision | Inter-Assay Precision | |||||
|---|---|---|---|---|---|---|
| Sample | 1 | 2 | 3 | 1 | 2 | 3 |
| n | 20 | 20 | 20 | 40 | 40 | 40 |
| Mean (ng/mL) | 5.49 | 17.4 | 32.7 | 5.20 | 16.4 | 31.4 |
| Standard Deviation | 0.32 | 0.78 | 1.39 | 0.44 | 1.14 | 2.04 |
| CV% | 5.8 | 4.5 | 4.3 | 8.5 | 6.9 | 6.5 |
Recovery for Human Pappalysin-1/PAPP-A Quantikine ELISA Kit
The recovery of PAPP-A spiked to levels throughout the range of the assay was evaluated.
| Sample Type | Average % Recovery | Range % |
|---|---|---|
| Cell Culture Media (n=4) | 110 | 90-117 |
| EDTA Plasma (n=4) | 97 | 89-108 |
| Heparin Plasma (n=4) | 95 | 86-111 |
| Serum (n=4) | 92 | 84-104 |
Linearity
To assess the linearity of the assay, samples containing and/or spiked with high concentrations of PAPP-A were serially diluted in Calibrator Diluent to produce samples with values within the dynamic range of the assay.
Scientific Data Images for Human Pappalysin-1/PAPP-A Quantikine ELISA Kit
Human Pappalysin-1/PAPP-A ELISA Standard Curve
Preparation and Storage
Shipping
The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below.
Stability & Storage
Store the unopened product at 2 - 8 °C. Do not use past expiration date.
Background: Pappalysin-1/PAPP-A
Long Name
Pregnancy-associated Plasma Protein 1
Alternate Names
ASBABP2, DIPLA1, IGFBP-4ase, PAPA, PAPP-A1, PAPPA, Pappalysin1
Gene Symbol
PAPPA
Additional Pappalysin-1/PAPP-A Products
Product Documents for Human Pappalysin-1/PAPP-A Quantikine ELISA Kit
Product Specific Notices for Human Pappalysin-1/PAPP-A Quantikine ELISA Kit
For research use only
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⚠ WARNING: This product can expose you to chemicals including N,N-Dimethylforamide, which is known to the State of California to cause cancer. For more information, go to www.P65Warnings.ca.gov.