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Human DKK1(Dickkopf Related Protein 1) ELISA Kit

  • Cat.No.:E-EL-H0057

  • Reactivity: Human

To Purchase E-EL-H0057

Size:
  • 96T
  • 48T
  • 24T
  • 96T*5
  • 96T*10
Price: $609
Qty:

Product Details

Properties

Assay type Sandwich-ELISA
Format 96T/48T/24
Assay time 3.5h
Detection range 31.25-2000 pg/mL
Sensitivity 18.75 pg/mL
Sample type &Sample volume serum, plasma and other biological fluids; 100μL
Specificity This kit recognizes Human DKK1 in samples. No significant cross-reactivity or interference between Human DKK1 and analogues was observed.
Reproducibility Both intra-CV and inter-CV are < 10%.
Application This ELISA kit applies to the in vitro quantitative determination of Human DKK1 concentrations in serum, plasma and other biological fluids.

Test Principle

This ELISA kit uses the Sandwich-ELISA principle. The micro ELISA plate provided in this kit has been pre-coated with an antibody specific to Human DKK1. Standards or samples are added to the micro ELISA plate wells and combined with the specific antibody. Then a biotinylated detection antibody specific for Human DKK1 and Avidin-Horseradish Peroxidase (HRP) conjugate are added successively to each micro plate well and incubated. Free components are washed away. The substrate solution is added to each well. Only those wells that contain Human DKK1, biotinylated detection antibody and Avidin-HRP conjugate will appear blue in color. The enzyme-substrate reaction is terminated by the addition of stop solution and the color turns yellow. The optical density (OD) is measured spectrophotometrically at a wavelength of 450 nm ± 2 nm. The OD value is proportional to the concentration of Human DKK1. You can calculate the concentration of Human DKK1 in the samples by comparing the OD of the samples to the standard curve.

Kit components & Storage

An unopened kit can be stored at 2-8℃ for 1 month. If the kit is not supposed to be used within 1 month, store the components separately according to the following conditions once the kit is received.
ItemSpecificationsStorage
Micro ELISA Plate(Dismountable) 96T: 8 wells ×12 strips
48T: 8 wells ×6 strips
-20℃, 12 months
Reference Standard 96T: 2 vials
48T: 1 vial
Concentrated Biotinylated Detection Ab (100×) 96T: 1 vial, 120 μL
48T: 1 vial, 60 μL
Concentrated HRP Conjugate (100×) 96T: 1 vial, 120 μL
48T: 1 vial, 60 μL
-20℃(Protect from light), 12 months
Reference Standard & Sample Diluent 1 vial, 20 mL 2-8°C, 12 months
Biotinylated Detection Ab Diluent 1 vial, 14 mL
HRP Conjugate Diluent 1 vial, 14 mL
Concentrated Wash Buffer (25×) 1 vial, 30 mL
Substrate Reagent 1 vial, 10 mL 2-8℃(Protect from light)
Stop Solution 1 vial, 10 mL 2-8°C
Plate Sealer 5 pieces
Manual 1 copy
Certificate of Analysis 1 copy

Technical Data

Precision

Intra-assay Precision (Precision within an assay): 3 samples with low, mid range and high level Human DKK1 were tested 20 times on one plate, respectively.
Inter-assay Precision (Precision between assays): 3 samples with low, mid range and high level Human DKK1 were tested on 3 different plates, 20 replicates in each plate.

  Intra-assay Precision Inter-assay Precision
Sample 1 2 3 1 2 3
n 20 20 20 20 20 20
Mean (pg/mL) 106.70 259.70 766.50 107.28 279.39 742.61
Standard deviation 6.53 12.21 33.88 5.73 12.13 39.66
CV (%) 6.12 4.70 4.42 5.34 4.34 5.34

Recovery

The recovery of Human DKK1 spiked at three different levels in samples throughout the range of the assay was evaluated in various matrices.

Sample Type Range (%) Average Recovery (%)
Serum(n=8) 88-99 93
EDTA plasma (n=8) 89-104 95
Cell culture media (n=8) 89-100 95

Linearity

Samples were spiked with high concentrations of Human DKK1 and diluted with Reference Standard & Sample Diluent to produce samples with values within the range of the assay.

Target Information

Database LinksSwissProt:   O94907
SynonymsDKK-1, SK
Research AreaCancer, Cardiovascular, Developmental biology, Immunology, Stem cells

Assay Procedures

elisa assay procedure 1

1. Add 100μL standard or sample to the wells. Incubate for 90 min at 37°C

elisa assay procedure 2

2. Discard the liquid, immediately add 100μL Biotinylated Detection Ab working solution to each well. Incubate for 60 min at 37°C

elisa assay procedure 3

3. Aspirate and wash the plate for 3 times

elisa assay procedure 4

4. Add 100μL HRP conjugate working solution. Incubate for 30 min at 37°C. Aspirate and wash the plate for 5 times

elisa assay procedure 5

5. Add 90μL Substrate Reagent. Incubate for 15 min at 37°C

elisa assay procedure 6

6. Add 50μL Stop Solution

elisa assay procedure 7

7. Read the plate at 450nm immediately. Calculation of the results

Citations

  1. Signal Transduction and Targeted Therapy (2019) IF: 5.873
    Dickkopf-1 contributes to hepatocellular carcinoma tumorigenesis by activating the Wnt/β-catenin signaling pathway

    DOI: 10.1038/s41392-019-0082-5

    Sample: Hepg2 Cell,Huh-7 Cell
  2. Journal of Maternal-Fetal & Neonatal Medicine (2018) IF: 1.493
    Inhibitors of osteoblastogenesis in early human milk and maternal serum: evidence for protective properties of mother’s milk on bone

    DOI: 10.1080/14767058.2018.1514383

    Sample: Serum,Milk
  3. METABOLIC BRAIN DISEASE (2020) IF: 2.726
    Chronic fatigue syndrome and fibromyalgia-like symptoms are an integral component of the phenome of schizophrenia: neuro-immune and opioid system correlates

    DOI: 10.1007/s11011-020-00619-x

    PMID: 32965599

    Sample: Serum
  4. METABOLIC BRAIN DISEASE (2021) IF: 3.584
    In schizophrenia, non-remitters and partial remitters to treatment with antipsychotics are qualitatively distinct classes with respect to neurocognitive deficits and neuro-immune biomarkers: results of soft independent modeling of class analogy

    DOI: 10.1007/s11011-021-00685-9

    PMID: 33580860

    Sample: Plasma
  5. JOURNAL OF AFFECTIVE DISORDERS (2021) IF: 4.839
    In schizophrenia, immune-inflammatory pathways are strongly associated with depressive and anxiety symptoms, which are part of a latent trait which comprises neurocognitive impairments and schizophrenia symptoms.

    DOI: 10.1016/j.jad.2021.03.062

    Sample: Serum
  6. SCHIZOPHRENIA BULLETIN (2021) IF: 9.306
    High Mobility Group Protein 1 and Dickkopf-Related Protein 1 in Schizophrenia and Treatment-Resistant Schizophrenia: Associations With Interleukin-6, Symptom Domains, and Neurocognitive Impairments

    DOI: 10.1093/schbul/sbaa136

    Sample: Serum
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