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ELK Biotechnology

ELK6813

Rat NME1(Non Metastatic Cells 1, Protein NM23A Expressed In) ELISA Kit

Rat NME1(Non Metastatic Cells 1, Protein NM23A Expressed In) ELISA Kit

$458.00 USD
$458.00 USD
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Detection range

Rat NME1(Non Metastatic Cells 1, Protein NM23A Expressed In) ELISA Kit

Overview

Product name: Rat NME1(Non Metastatic Cells 1, Protein NM23A Expressed In) ELISA Kit
Reactivity: Rat
Alternative Names: AWD; GAAD; NDPKA; NM23-H1; Nucleoside diphosphate kinase A; Granzyme A-activated DNase; Metastasis inhibition factor nm23; Tumor metastatic process-associated protein
Assay Type: Sandwich
Sensitivity: 0.115 ng/mL
Standard: 20 ng/mL
Detection Range: 0.32-20 ng/mL
Sample Type: Serum, plasma and other biological fluids.
Assay Length: 3.5h
Research Area: Signal transduction;
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 Rat NME1. Standards or samples are added to the appropriate microtiter plate wells then with a biotin-conjugated antibody specific to Rat NME1. 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 Rat NME1, 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 Rat NME1 in the samples is then determined by comparing the OD of the samples to the standard curve.

Standard curve

Concentration (ng/mL) OD Corrected OD
20.00 2.121 2.035
10.00 1.583 1.497
5.00 1.144 1.058
2.50 0.892 0.806
1.25 0.572 0.486
0.63 0.273 0.187
0.32 0.223 0.137
0.00 0.086 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 NME1 and the recovery rates were calculated by comparing the measured value to the expected amount of NME1 in samples.
Matrix Recovery range Average
serum(n=5) 80-95% 87%
EDTA plasma(n=5) 86-99% 92%
Heparin plasma(n=5) 82-97% 89%

Linearity

The linearity of the kit was assayed by testing samples spiked with appropriate concentration of NME1 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) 93-101% 86-92% 81-93% 79-95%
EDTA plasma(n=5) 98-105% 92-101% 85-105% 87-98%
Heparin plasma(n=5) 85-92% 79-96% 89-100% 85-96%
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