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Mouse DPP4(Dipeptidyl Peptidase IV) ELISA Kit
ELK1597
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48 T $320.00
96 T $458.00
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Overview

Product name: Mouse DPP4(Dipeptidyl Peptidase IV) ELISA Kit
Reactivity: Mouse
Alternative Names: CD26; ADA; DPPIV; DPP-IV; ADABP; ADCP2; TP103; Adenosine Deaminase Complexing Protein 2; T-cell activation antigen CD26
Assay Type: Sandwich
Sensitivity: 4.8 pg/mL
Standard: 800 pg/mL
Detection Range: 12.5-800 pg/mL
Sample Type: Serum, plasma, tissue homogenates and other biological fluids
Assay Length: 3.5h
Research Area: Signal transduction;Enzyme & Kinase;Apoptosis;Tumor immunity;Endocrinology;Cardiovascular biology;
Uniprot ID: P28843
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 Mouse DPP4. Standards or samples are added to the appropriate microtiter plate wells then with a biotin-conjugated antibody specific to Mouse DPP4. 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 Mouse DPP4, 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 Mouse DPP4 in the samples is then determined by comparing the OD of the samples to the standard curve.

Standard curve

Concentration (pg/mL) OD Corrected OD
800.00 2.154 2.060
400.00 1.630 1.536
200.00 1.136 1.042
100.00 0.828 0.734
50.00 0.538 0.444
25.00 0.308 0.214
12.50 0.256 0.162
0.00 0.094 0.000

Precision

Intra-assay Precision (Precision within an assay)：CV%<8%

Three samples of known concentration were tested twenty times on one plate to assess intra-assay precision.

Inter-assay Precision (Precision between assays)：CV%<10%

Three samples of known concentration were tested in forty separate assays to assess inter-assay precision.

Recovery

Matrices listed below were spiked with certain level of recombinant DPP4 and the recovery rates were calculated by comparing the measured value to the expected amount of DPP4 in samples.
Matrix Recovery range Average
serum(n=5) 91-105% 98%
EDTA plasma(n=5) 81-95% 88%
Heparin plasma(n=5) 85-97% 91%

Linearity

The linearity of the kit was assayed by testing samples spiked with appropriate concentration of DPP4 and their serial dilutions. The results were demonstrated by the percentage of calculated concentration to the expected.
Matrix 1:2 1:4 1:8 1:16
serum(n=5) 85-94% 87-103% 97-105% 79-90%
EDTA plasma(n=5) 85-102% 78-92% 87-98% 95-102%
Heparin plasma(n=5) 79-97% 96-104% 85-93% 89-97%