Mouse EGR2 (Early Growth Response Protein 2) ELISA Kit (MOES00974)

Product Type:
96 Assays
Tested Sample Types:
Serum, plasma and other biological fluids


ELISA Kit Technical ManualMSDS

Mouse EGR2 (Early Growth Response Protein 2) 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 Mouse EGR2 . 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 Mouse EGR2 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 Mouse EGR2, 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 Mouse EGR2. The concentration of Mouse EGR2 in samples can be calculated by comparing the OD of the samples to the standard curve.

Assay typeSandwich
Assay time4.5h
Detection MethodColormetric
Detection Range0.31-20 ng/mL
Sensitivity0.19 ng/mL
Sample Volume Required Per Well100uL
Sample TypeSerum, plasma and other biological fluids


This kit recognizes Mouse EGR2 in samples. No significant cross-reactivity or interference between Mouse EGR2 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 Mouse EGR2 were tested 20 times on one plate, respectively.

Inter-assay Precision (Precision between assays): 3 samples with low, mid range and high level Mouse EGR2 were tested on 3 different plates, 20 replicates in each plate.

Intra-assay Precision Inter-assay Precision
Mean (ng/mL)1.062.497.801.002.488.29
Standard deviation0.050.130.400.050.150.43
C V (%)4.725.


The recovery of Mouse EGR2 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)94-107101
EDTA plasma (n=5)93-10599
Cell culture media (n=5)93-10599


Samples were spiked with high concentrations of Mouse EGR2 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 (%)91-10489-10093-106
Average (%)999498
1:4Range (%)91-10281-9388-101
Average (%)978893
1:8Range (%)93-10780-9083-98
Average (%)998590
1:16Range (%)86-10280-9386-98
Average (%)938693

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

Mouse EGR2 (Early Growth Response Protein 2) ELISA Kit (MOES00974) 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.

Mouse EGR2 (Early Growth Response Protein 2) ELISA Kit (MOES00974) Protein Information

UniProt Protein Function:EGR2: sequence-specific DNA-binding transcription factor. Controls systemic autoimmunity; essential for the induction of T-cell anergy. Egr2 and Egr3 induce the suppressive activity of CD4+ T cells, cooperatively inhibiting humoral immune responses by promoting TGF-¿3 secretion. Belongs to the EGR C2H2-type zinc-finger protein family. 2 isoforms of the human protein are produced by alternative splicing.
UniProt Protein Details:

Protein type:C2H2-type zinc finger protein; DNA-binding; EC 6.3.2.-

Chromosomal Location of Human Ortholog: 10 B5.1|10 34.96 cM

Cellular Component: cytoplasm; intracellular membrane-bound organelle; nucleoplasm; nucleus

Molecular Function:chromatin binding; DNA binding; DNA binding transcription factor activity; ligase activity; metal ion binding; nucleic acid binding; protein binding; ubiquitin protein ligase binding

Biological Process: brain segmentation; facial nerve structural organization; fat cell differentiation; motor axon guidance; myelination; positive regulation of transcription from RNA polymerase II promoter; positive regulation of transcription, DNA-templated; protein export from nucleus; regulation of ossification; regulation of transcription, DNA-templated; response to insulin stimulus; rhombomere 3 development; rhombomere 3 formation; rhombomere 5 formation; rhythmic behavior; Schwann cell differentiation; transcription from RNA polymerase II promoter; transcription, DNA-dependent

UniProt Code:P08152
NCBI GenInfo Identifier:1108846928
NCBI Gene ID:13654
NCBI Accession:NP_001334387.1
UniProt Related Accession:P08152
Molecular Weight:44,500 Da
NCBI Full Name:E3 SUMO-protein ligase EGR2 isoform 2
NCBI Synonym Full Names:early growth response 2
NCBI Official Symbol:Egr2  
NCBI Official Synonym Symbols:Egr-2; Zfp-6; Krox20; NGF1-B; Zfp-25; Krox-20  
NCBI Protein Information:E3 SUMO-protein ligase EGR2
UniProt Protein Name:E3 SUMO-protein ligase EGR2
UniProt Synonym Protein Names:Early growth response protein 2; EGR-2; Zinc finger protein Krox-20
Protein Family:E3 SUMO-protein ligase
UniProt Gene Name:Egr2