Code | CSB-E16196h |
Size | 96T,5×96T,10×96T |
Price | Request a Quote |
Trial Size |
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Intra-assay Precision (Precision within an assay): CV%<8% | ||||||
Three samples of known concentration were tested twenty times on one plate to assess. | ||||||
Inter-assay Precision (Precision between assays): CV%<10% | ||||||
Three samples of known concentration were tested in twenty assays to assess. | ||||||
To assess the linearity of the assay, samples were spiked with high concentrations of human PEPD in various matrices and diluted with the Sample Diluent to produce samples with values within the dynamic range of the assay. | ||||||
Sample | Serum(n=4) | |||||
1:5 | Average % | 84 | ||||
Range % | 80-89 | |||||
1:10 | Average % | 88 | ||||
Range % | 84-92 | |||||
1:20 | Average % | 90 | ||||
Range % | 85-96 | |||||
1:40 | Average % | 85 | ||||
Range % | 80-92 |
The recovery of human PEPD spiked to levels throughout the range of the assay in various matrices was evaluated. Samples were diluted prior to assay as directed in the Sample Preparation section. | ||||||
Sample Type | Average % Recovery | Range | ||||
Serum (n=5) | 96 | 91-103 | ||||
EDTA plasma (n=4) | 92 | 88-98 | ||||
These standard curves are provided for demonstration only. A standard curve should be generated for each set of samples assayed. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Peptidase D (PEPD) is a cytosolic metalloenzyme that specifically cleaves dipeptides containing proline or hydroxyproline at the C-terminus. This enzyme plays an important role in collagen metabolism by breaking down proline-containing dipeptides released during collagen degradation. PEPD deficiency is associated with prolidase deficiency, a rare autosomal recessive disorder characterized by skin lesions, mental retardation, and recurrent infections. The enzyme also participates in wound healing processes and has been studied as a potential biomarker for various pathological conditions including liver disease and certain cancers.
The Human Xaa-Pro Dipeptidase/Prolidase ELISA Kit (CSB-E16196h) allows quantitative measurement of PEPD in human samples. This sandwich-based assay works with serum, plasma, and tissue homogenates. The detection range spans 93.75 mU/mL to 6000 mU/mL with sensitivity of 23.4 mU/mL. The assay requires 50-100 μL sample volume and can be completed within 1-5 hours. Detection occurs at 450 nm wavelength, providing researchers with a reliable tool for PEPD quantification in human specimens.
Application Examples
Note: The following application examples are drawn from a selection of publications citing this product. For additional applications, please refer to the full list of references in the "Citations" section.
This ELISA kit has been used in clinical research to measure prolidase activity in human serum samples, particularly in cardiovascular disease studies. The kit allows researchers to quantify peptidase D levels in patient populations compared to healthy controls, supporting research into enzyme activity patterns associated with various health conditions.
• Cardiovascular research: Measurement of prolidase activity in cardiac syndrome X patients versus healthy control subjects using serum samples
• Clinical biomarker studies: Measurement of enzyme levels in fasting serum samples as part of comprehensive metabolic profiling alongside lipid panels and inflammatory markers
• Enzyme activity analysis: Quantification of prolidase activity in human samples using standardized ELISA methodology for research applications
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