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Human KDM2B(Lysine (K) specific demethylase 2B) ELISA Kit
ELK9824
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48 T $320.00
96 T $458.00
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Overview

Product name: Human KDM2B(Lysine (K) specific demethylase 2B) ELISA Kit
Reactivity: Human
Alternative Names: [Histone-H3]-lysine-36 demethylase 1B; CXXC-type zinc finger protein 2; CXXC2; F box and leucine rich repeat protein 10; F box protein FBL10; F-box and leucine-rich repeat protein 10; F-box protein FBL10; F-box/LRR-repeat protein 10; Fbl10; FBXL10; JEMMA (Jumonji domain EMSY interactor methyltransferase motif) protein; JHDM1B; JmjC domain-containing histone demethylation protein 1B; Jumonji C domain containing histone demethylase 1B; Jumonji domain-containing EMSY-interactor methyltransferase motif protein; kdm2b; KDM2B_HUMAN; Lysine (K) specific demethylase 2B; Lysine-specific demethylase 2B; PCCX2;  Protein containing CXXC domain 2; Protein JEMMA; Protein-containing CXXC domain 2;
Assay Type: Sandwich
Sensitivity: 0.119 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: Epigenetics and Nuclear Signaling
Uniprot ID: Q8NHM5
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 Human KDM2B. Standards or samples are added to the appropriate microtiter plate wells then with a biotin-conjugated antibody specific to Human KDM2B. 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 Human KDM2B, 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 Human KDM2B 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 2.201 2.104
10.00 1.593 1.496
5.00 1.223 1.126
2.50 0.875 0.778
1.25 0.528 0.431
0.63 0.361 0.264
0.32 0.236 0.139
0.00 0.097 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 KDM2B and the recovery rates were calculated by comparing the measured value to the expected amount of KDM2B in samples.
Matrix Recovery range Average
serum(n=5) 78-92% 85%
EDTA plasma(n=5) 93-107% 100%
Heparin plasma(n=5) 95-107% 101%

Linearity

The linearity of the kit was assayed by testing samples spiked with appropriate concentration of KDM2B 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) 85-96% 87-101% 85-102% 79-92%
EDTA plasma(n=5) 87-103% 89-98% 81-95% 98-105%
Heparin plasma(n=5) 85-98% 95-104% 82-96% 83-97%