Description
Boster’s human DKK-4 ELISA Kit was based on standard sandwich enzyme-linked immune-sorbent assay technology. A monoclonal antibody from mouse specific for DKK-4 has been precoated onto 96-well plates. Standards (Expression system for standard: NSO, Immunogen sequence: L19-L224) and test samples are added to the wells, a biotinylated detection polyclonal antibody from goat specific for DKK-4 is added subsequently and then followed by washing with PBS or TBS buffer. Avidin-Biotin-Peroxidase Complex was added and unbound conjugates were washed away with PBS or TBS buffer. HRP substrate TMB was used to visualize HRP enzymatic reaction. TMB was 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 DKK-4 amount of sample captured in plate.
Synonyms: Dickkopf-related protein 4; Dickkopf-4; Dkk-4; hDkk-4; Dickkopf-related protein 4 short form; DKK4
Species: Human DKK-4
Assay: 156pg/ml-10000pg/ml
Sensitivy: <10pg/ml Specifity: Natural and recombinant human DKK-4
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,L19-L224
Gene name: Dickkopf-related protein 4 / dickkopf WNT signaling pathway inhibitor 4
Protein name: Dickkopf-related protein 4
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)|238|1092|4513|249|988|4453
Standard deviation|14.99|57.87|342.98|19.42|55.32|396.31
CV(%)|6.3%|5.3%|7.6%|7.8%|5.6%|8.9%
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 | 238 | 234 | 223 | 250 | 236 | 9.65 | 4% |
| Sample 2 | 1092 | 965 | 1125 | 1149 | 1082 | 70.93 | 6.5% |
| Sample 3 | 4513 | 4306 | 4063 | 4001 | 4220 | 203.62 | 4.8% |
*number of samples for each test n=16.
Catalog number|Description|Quantity
EK0868-CAP|96-well plate precoated with anti- human DKK-4 antibody|1
EK0868-ST|Lyophilized recombinant human DKK-4 standard|10ng/tube×2
EK0868-DA|Biotinylated anti- human DKK-4 antibody|130μl(dilution 1:100)
AR1103|Avidin-Biotin-Peroxidase Complex (ABC)|130μl(dilution 1:100)
AR1106-1|Sample diluent buffer|30 ml
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
