Human CYP2E1 (Cytochrome P450, family 2, subfamily E, polypeptide 1) ELISA Kit (HUES03321)

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ELISA Kit Technical ManualMSDS

Human CYP2E1 (Cytochrome P450, family 2, subfamily E, polypeptide 1) ELISA Kit

This ELISA kit uses Sandwich-ELISA as the method. The micro ELISA plate provided in this kit has been pre-coated with an antibody specific to Human CYP2E1 . Standards or samples are added to the appropriate micro ELISA plate wells and combined with the specific antibody. Then a biotinylated detection antibody specific for Human CYP2E1 and Avidin-Horseradish Peroxidase (HRP) conjugate are added to each micro plate well successively and incubated. Free components are washed away. The substrate solution is added to each well. Only those wells that contain Human CYP2E1, biotinylated detection antibody and Avidin-HRP conjugate will appear blue in color. The enzyme-substrate reaction is terminated by adding Stop Solution and the color turns yellow. The optical density (OD) is measured spectrophotometrically at a wavelength of 450 nm ± 2 nm. The OD value is proportional to the concentration of Human CYP2E1. The concentration of Human CYP2E1 in samples can be calculated by comparing the OD of the samples to the standard curve.

Assay typeSandwich
Assay time4.5h
Detection MethodColormetric
Detection Range1.56-100 ng/mL
Sensitivity0.94 ng/mL
Sample Volume Required Per Well100uL
Sample TypeSerum, plasma and other biological fluids


This kit recognizes Human CYP2E1 in samples. No significant cross-reactivity or interference between Human CYP2E1 and analogues was observed.

Typical Data

As the OD values of the standard curve may vary according to the conditions of the actual assay performance (e.g. operator, pipetting technique, washing technique or temperature effects), the operator should establish a standard curve for each test. Typical standard curve and data is provided below for reference only.

O.D Average Corrected


Intra-assay Precision (Precision within an assay): 3 samples with low, mid range and high level Human CYP2E1 were tested 20 times on one plate, respectively.

Inter-assay Precision (Precision between assays): 3 samples with low, mid range and high level Human CYP2E1 were tested on 3 different plates, 20 replicates in each plate.

Intra-assay Precision Inter-assay Precision
Mean (ng/mL)5.369.2534.174.899.9137.02
Standard deviation0.350.531.490.250.501.47
C V (%)6.535.734.365.115.053.97


The recovery of Human CYP2E1 spiked at three different levels in samples throughout the range of the assay was evaluated in various matrices.

Sample Type Range (%) Average Recovery (%)
Serum (n=5)89-10196
EDTA plasma (n=5)86-9792
Cell culture media (n=5)84-9790


Samples were spiked with high concentrations of Human CYP2E1 and diluted with Reference Standard & Sample Diluent to produce samples with values within the range of the assay.

Serum (n=5) EDTA plasma (n=5) Cell culture media (n=5)
1:2Range (%)91-10293-10492-105
Average (%)979897
1:4Range (%)93-10785-9886-100
Average (%)1009091
1:8Range (%)93-10884-9886-101
Average (%)999193
1:16Range (%)86-9886-9883-93
Average (%)929188

Kit Components & Storage

An unopened kit can be stored at 4'C for 1 month. If the kit is not used within 1 month, store the items separately according to the following conditions once the kit is received.

Item Specifications Storage
Micro ELISA Plate(Dismountable)8 wells X12 strips-20'C, 6 months
Reference Standard2 vials
Concentrated Biotinylated Detection Ab (100X)1 vial, 120 uL
Concentrated HRP Conjugate (100X)1 vial, 120 uL-20'C(shading light), 6 months
Reference Standard & Sample Diluent1 vial, 20 mL4'C, 6 months
Biotinylated Detection Ab Diluent1 vial, 14 mL
HRP Conjugate Diluent1 vial, 14 mL
Concentrated Wash Buffer (25X)1 vial, 30 mL
Substrate Reagent1 vial, 10 mL4'C(shading light)
Stop Solution1 vial, 10 mL4'C
Plate Sealer5 pieces
Product Description1 copy
Certificate of Analysis1 copy

Human CYP2E1 (Cytochrome P450, family 2, subfamily E, polypeptide 1) ELISA Kit (HUES03321) Assay procedure

    1. Set standard, test sample and control (zero) wells on the pre-coated plate and record theirpositions. It is recommended to measure each standard and sample in duplicate. Note: addall solutions to the bottom of the plate wells while avoiding contact with the well walls. Ensuresolutions do not foam when adding to the wells.
    2. Aliquot 100µl of standard solutions into the standard wells.
    3. Add 100µl of Sample / Standard dilution buffer into the control (zero) well.
    4. Add 100µl of properly diluted sample (serum, plasma, tissue homogenates and otherbiological fluids) into test sample wells.
    5. Cover the plate with the sealer provided in the kit and incubate for 90 min at 37°C.
    6. Aspirate the liquid from each well, do not wash. Immediately add 100µL of BiotinylatedDetection Ab working solution to each well. Cover the plate with a plate seal and gently mix.Incubate for 1 hour at 37°C.
    7. Aspirate or decant the solution from the plate and add 350µL of wash buffer to each welland incubate for 1-2 minutes at room temperature. Aspirate the solution from each well andclap the plate on absorbent filter paper to dry. Repeat this process 3 times. Note: a microplatewasher can be used in this step and other wash steps.
    8. Add 100µL of HRP Conjugate working solution to each well. Cover with a plate seal andincubate for 30 min at 37°C.
    9. Aspirate or decant the solution from each well. Repeat the wash process for five times asconducted in step 7.
    10. Add 90µL of Substrate Reagent to each well. Cover with a new plate seal and incubate forapproximately 15 min at 37°C. Protect the plate from light. Note: the reaction time can beshortened or extended according to the actual color change, but not by more than 30min.
    11. Add 50 µL of Stop Solution to each well. Note: Adding the stop solution should be done inthe same order as the substrate solution.
    12. Determine the optical density (OD value) of each well immediately with a microplate readerset at 450 nm.

Human CYP2E1 (Cytochrome P450, family 2, subfamily E, polypeptide 1) ELISA Kit (HUES03321) Protein Information

UniProt Protein Function:CYP2E1: Metabolizes several precarcinogens, drugs, and solvents to reactive metabolites. Inactivates a number of drugs and xenobiotics and also bioactivates many xenobiotic substrates to their hepatotoxic or carcinogenic forms. Belongs to the cytochrome P450 family.
UniProt Protein Details:

Protein type:Xenobiotic Metabolism - drug metabolism - cytochrome P450; EC 1.14.13.n7; Lipid Metabolism - arachidonic acid; Oxidoreductase; Xenobiotic Metabolism - metabolism by cytochrome P450; Lipid Metabolism - linoleic acid; Endoplasmic reticulum; Mitochondrial

Chromosomal Location of Human Ortholog: 10q26.3

Cellular Component: endoplasmic reticulum membrane

Molecular Function:arachidonic acid epoxygenase activity; enzyme binding; heme binding; monooxygenase activity; oxidoreductase activity; oxidoreductase activity, acting on paired donors, with incorporation or reduction of molecular oxygen, NADH or NADPH as one donor, and incorporation of one atom of oxygen; oxygen binding; steroid hydroxylase activity

Biological Process: benzene metabolic process; carbon tetrachloride metabolic process; drug metabolic process; epoxygenase P450 pathway; halogenated hydrocarbon metabolic process; heterocycle metabolic process; monoterpenoid metabolic process; steroid metabolic process; xenobiotic metabolic process

NCBI Summary:This gene encodes a member of the cytochrome P450 superfamily of enzymes. The cytochrome P450 proteins are monooxygenases which catalyze many reactions involved in drug metabolism and synthesis of cholesterol, steroids and other lipids. This protein localizes to the endoplasmic reticulum and is induced by ethanol, the diabetic state, and starvation. The enzyme metabolizes both endogenous substrates, such as ethanol, acetone, and acetal, as well as exogenous substrates including benzene, carbon tetrachloride, ethylene glycol, and nitrosamines which are premutagens found in cigarette smoke. Due to its many substrates, this enzyme may be involved in such varied processes as gluconeogenesis, hepatic cirrhosis, diabetes, and cancer. [provided by RefSeq, Jul 2008]
UniProt Code:P05181
NCBI GenInfo Identifier:117250
NCBI Gene ID:1571
NCBI Accession:P05181.1
UniProt Secondary Accession:P05181,Q5VZD5, Q6NWT9, Q9UK47,
UniProt Related Accession:P05181
Molecular Weight:56,849 Da
NCBI Full Name:Cytochrome P450 2E1
NCBI Synonym Full Names:cytochrome P450 family 2 subfamily E member 1
NCBI Official Symbol:CYP2E1  
NCBI Official Synonym Symbols:CPE1; CYP2E; P450-J; P450C2E  
NCBI Protein Information:cytochrome P450 2E1
UniProt Protein Name:Cytochrome P450 2E1
UniProt Synonym Protein Names:4-nitrophenol 2-hydroxylase (EC:1.14.13.n7); CYPIIE1; Cytochrome P450-J
Protein Family:Cytochrome
UniProt Gene Name:CYP2E1  
UniProt Entry Name:CP2E1_HUMAN
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