Description
Boster’s human PAPPA2 ELISA Kit is based on standard sandwich enzyme-linked immune-sorbent assay technology. A monoclonal antibody from mouse specific for PAPPA2 has been precoated onto 96-well plates. Standards(Expression system for standard: NSO, Immunogen sequence: P235-Q1791) and test samples are added to the wells, a biotinylated detection polyclonal antibody from goat specific for PAPPA2 is added subsequently and then followed by washing with PBS or TBS buffer. Avidin-Biotin-Peroxidase Complex is added and unbound conjugates are washed away with PBS or TBS buffer. HRP substrate TMB are used to visualize HRP enzymatic reaction. TMB is catalyzed by HRP to produce a blue color product that changed into yellow after adding acidic stop solution. The density of yellow is proportional to the human PAPPA2 amount of sample captured in plate.
Synonyms: Pappalysin-2; Pregnancy-associated plasma protein A2; PAPP-A2; Pregnancy-associated plasma protein E1; PAPP-E; PAPPA2; PLAC3
Species: Human PAPPA2
Assay: 15.6pg/ml-1000pg/ml
Sensitivy: <10pg/ml Specifity: Natural and recombinant human PAPPA2
Cross Reactivity: There is no detectable cross-reactivity with other relevant proteins.
Antibodies: a monoclonal antibody from mouse|a biotinylated polyclonal antibody from goat
Anticoagulant: heparin or EDTA
Immunogen: NSO, P235-Q1791
Gene name: Pappalysin-2 / pappalysin 2
Protein name: Pappalysin-2
Storage: Store at 4˚C for 6 months, at -20˚C for 12 months. Avoid multiple freeze-thaw cycles(Shipped with wet ice.)
|Intra-Assay Precision|Inter-Assay Precision
Sample|1|2|3|1|2|3
n|16|16|16|24|24|24
Mean(pg/ml)|22|82|293|24|95|384
Standard deviation|0.95|4.18|15.24|1.32|5.61|24.58
CV(%)|4.3%|5.1%|5.2%|5.5%|5.9%|6.4%
Reproducibility
To assay reproducibility, three samples with differing target protein concentrations were assayed using four different lots.
| Lots | Lot1 (pg/ml) | Lot2 (pg/ml) | Lot3 (pg/ml) | Lot4 (pg/ml) | Mean (pg/ml) | Standard Deviation | CV (%) |
|---|---|---|---|---|---|---|---|
| Sample 1 | 22 | 19 | 21 | 19 | 20 | 1.29 | 6.4% |
| Sample 2 | 82 | 78 | 81 | 71 | 78 | 4.30 | 5.5% |
| Sample 3 | 293 | 268 | 285 | 263 | 277 | 12.21 | 4.4% |
*number of samples for each test n=16.
Catalog number|Description|Quantity
EK1871-CAP|96-well plate precoated with anti- human PAPPA2 antibody|1
EK1871-ST|Lyophilized recombinant human PAPPA2 standard|10ng/tube×2
EK1871-DA|Biotinylated anti- human PAPPA2 antibody|130μl(dilution 1:100)
AR1103|Avidin-Biotin-Peroxidase Complex (ABC)|130μl(dilution 1:100)
AR1106-1|Sample diluent buffer|30ml
AR1106-2|Antibody diluent buffer|12ml
AR1106-3|ABC diluent buffer|12ml
AR1104|TMB color developing agent|10ml
AR1105|TMB stop solution|10ml
PLA-SEA|Adhesive cover|4
