Species:
Human
Alternative Name:
Hypocretin-1, Orexin A, HCRT1, Hcrt ; Hcrt1 ; Hypocretin ; Hypocretin neuropeptide precursor ; Hypocretin-1 ; OREX ; Orexin precursor ; OX ; PPOX
Uniport ID:
O43612(34~66aa)
Assay Type:
Competitive
unit:
pg/mL
Standard:
4000pg/mL
Sensitivity:
37.5 pg/mL
Detection Range:
62.5-4000pg/mL
Assay Time:
1.5H
Sample Type:
Serum, Plasma, Tissue homogenate and Other biological samples;Sample Volume=50μL
Research:
Signal transduction;Infection immunity;
Test Principle:
This ELISA kit uses the Competitive-ELISA principle. The micro ELISA plate provided in this kit has been pre-coated with Human OXA. During the reaction, Human OXA in the sample or standard competes with a fixed amount of Human OXA on the solid phase supporter for sites on the Biotinylated Detection Ab specific to Human OXA. Excess conjugate and unbound sample or standard are washed away, and Avidin-Horseradish Peroxidase (HRP) conjugate are added to each micro plate well and incubated. Then a TMB substrate solution is added to each well. The enzyme-substrate reaction is terminated by the addition of stop solution and the color turns from blue to yellow. The optical density (OD) is measured spectrophotometrically at a wavelength of 450 nm ± 2 nm. The concentration of Human OXA in tested samples can be calculated by comparing the OD of the samples to the standard curve.
| pg/mL | OD | Corrected |
|---|---|---|
| 4000 | 0.244 | |
| 2000 | 0.407 | |
| 1000 | 0.647 | |
| 500 | 0.964 | |
| 250 | 1.257 | |
| 125 | 1.577 | |
| 62.5 | 1.847 | |
| 0 | 2.669 |
Intra-assay Precision (Precision within an assay): 3 samples with low, mid range and high level were tested 20 times on one plate, respectively.
Inter-assay Precision (Precision between assays): 3 samples with low, mid range and high level were tested on 3 different plates, 20 replicates in each plate, respectively.
| Intra-assay Precision | Inter-assay Precision | |||||
|---|---|---|---|---|---|---|
| Sample | 1 | 2 | 3 | 1 | 2 | 3 |
| n | 20 | 20 | 20 | 20 | 20 | 20 |
| Mean(ng/mL) | 155.95 | 943.37 | 1861.58 | 173.48 | 791.82 | 1986.24 |
| Standard deviation | 11.5 | 47.81 | 94.04 | 8.97 | 29.91 | 105.21 |
| C V (%) | 3.81 | 5.85 | 6.48 | 5.82 | 6.16 | 7.16 |
| Sample Type | Range(%) | Average Recovery(%) |
|---|---|---|
| Serum (n=8) | 80-92 | 85 |
| EDTA plasma (n=8) | 92-105 | 98 |
| Cell culture media (n=8) | 85-97 | 91 |
| Serum (n=5) | EDTA plasma (n=5) | Cell culture media (n=5) | ||
|---|---|---|---|---|
| 1:2 | Range (%) | 85-105 | 86-94 | 85-95 |
| Average (%) | 102 | 92 | 87 | |
| 1:4 | Range (%) | 87-98 | 86-94 | 89-97 |
| Average (%) | 94 | 90 | 94 | |
| 1:8 | Range (%) | 91-102 | 85-95 | 85-94 |
| Average (%) | 94 | 86 | 91 | |
| 1:16 | Range (%) | 86-102 | 89-99 | 80-96 |
| Average (%) | 92 | 96 | 80 |