SFRP1 ELISA kit (Human)

SKU: SEF880Hu

Size: 96Tests

# of Times Cited in literature: 8

Prepare Time: 1-3 days(please inquire for mutiple units)

Target Name: SFRP1

Target Full Name: Secreted Frizzled Related Protein 1

Alternative Names: FRP1; FRP; FRP-1; FrzA; SARP2; Secreted apoptosis-related protein 2

Target Species: Human

Uniprot: Q8N474

Gene ID: 6422

Featured Series: SE kit

Featured Series Function: Detects protein (regular version)

Specificity: Reactive with Human SFRP1 / Secreted Frizzled Related Protein 1

Method: Colormetric

Detection principle: Double-antibody Sandwich

Detection range: 0.156-10ng/mL

Sensitivity: 0.057ng/mL

Assay Time: 3h

Sample Size: 100uL

Recommended/Predicted Sample Types: Serum, Plasma, Tissue Homogenates and other Biological Fluids

Assay Precision: Intra-Assay: CV<10%, Inter-Assay: CV<12%

Reproducibility test menthod: Intra-assay Precision (Precision within an assay): 3 samples with low, middle and high level Secreted Frizzled Related Protein 1 (SFRP1) were tested 20 times on one plate, respectively. Inter-assay Precision (Precision between assays): 3 samples with low, middle and high level Secreted Frizzled Related Protein 1 (SFRP1) were tested on 3 different plates, 8 replicates in each plate. CV(%) = SD/meanX100

Storage: 4°C for 1 month/ -20°C for long-term(One year within shelf life)

Shelf-life: 12 months

Specificity: This assay has high sensitivity and excellent specificity for detection of Secreted Frizzled Related Protein 1 (SFRP1). No significant cross-reactivity or interference between Secreted Frizzled Related Protein 1 (SFRP1) and analogues was observed.

Stability: The stability of kit is determined by the loss rate of activity. The loss rate of this kit is less than 5% within the expiration date under appropriate storage condition. To minimize extra influence on the performance, operation procedures and lab conditions, especially room temperature, air humidity, incubator temperature should be strictly controlled. It is also strongly suggested that the whole assay is performed by the same operator from the beginning to the end.

Assay procedure summary: 1. Prepare all reagents, samples and standards; 2. Add 100µL standard or sample to each well. Incubate 1 hours at 37°C; 3. Aspirate and add 100µL prepared Detection Reagent A. Incubate 1 hour at 37°C; 4. Aspirate and wash 3 times; 5. Add 100µL prepared Detection Reagent B. Incubate 30 minutes at 37°C; 6. Aspirate and wash 5 times; 7. Add 90µL Substrate Solution. Incubate 10-20 minutes at 37°C; 8. Add 50µL Stop Solution. Read at 450nm immediately.

Test principle: The test principle applied in this kit is Sandwich enzyme immunoassay. The microtiter plate provided in this kit has been pre-coated with an antibody specific to Secreted Frizzled Related Protein 1 (SFRP1). Standards or samples are then added to the appropriate microtiter plate wells with a biotin-conjugated antibody specific to Secreted Frizzled Related Protein 1 (SFRP1). Next, Avidin conjugated to Horseradish Peroxidase (HRP) is added to each microplate well and incubated. After TMB substrate solution is added, only those wells that contain Secreted Frizzled Related Protein 1 (SFRP1), biotin-conjugated antibody and enzyme-conjugated Avidin will exhibit a change in color. The enzyme-substrate reaction is terminated by the addition of sulphuric acid solution and the color change is measured spectrophotometrically at a wavelength of 450nm ± 10nm. The concentration of Secreted Frizzled Related Protein 1 (SFRP1) in the samples is then determined by comparing the O.D. of the samples to the standard curve.

Research Area: Signal transduction;

References Citing This Product: Biomarkers and cytokines of bone turnover: extensive evaluation in a cohort of patients with ankylosing spondylitis

Wnt Inhibition is Dysregulated in Gliomas and its Re-Establishment Inhibits Proliferation and Tumor Sphere Formation

Correlation of blood bone turnover biomarkers and Wnt signaling antagonists with AS, DISH,OPLL, and OYL.

Effects of exercise training on circulating levels of Dickkpof-1 and secreted frizzled-related protein-1 in breast cancer survivors: A pilot single-blind randomized controlled trial.

Effects of exercise training on circulating levels of Dickkpof-1 and secreted frizzled-related protein-1 in breast cancer survivors: A pilot single-blind randomized controlled trial

PHF21B overexpression promotes cancer stem cell-like traits in prostate cancer cells by activating the Wnt/β-catenin signaling pathway

Low serum levels of DKK2 predict incident low‐impact fracture in older women

Immunological history governs human stem cell memory CD4 heterogeneity via the Wnt signaling pathway