Human CSNK2B (Casein Kinase 2, beta) ELISA Kit (HUES03468)

(No reviews yet) Write a Review


ELISA Kit Technical ManualMSDS

Human CSNK2B (Casein Kinase 2, beta) 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 CSNK2B . 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 CSNK2B 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 CSNK2B, 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 CSNK2B. The concentration of Human CSNK2B in samples can be calculated by comparing the OD of the samples to the standard curve.

Assay typeSandwich
Assay time4.5h
Detection MethodColormetric
Detection Range0.16-10 ng/mL
Sensitivity0.10 ng/mL
Sample Volume Required Per Well100uL
Sample TypeSerum, plasma and other biological fluids


This kit recognizes Human CSNK2B in samples. No significant cross-reactivity or interference between Human CSNK2B 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 CSNK2B were tested 20 times on one plate, respectively.

Inter-assay Precision (Precision between assays): 3 samples with low, mid range and high level Human CSNK2B were tested on 3 different plates, 20 replicates in each plate.

Intra-assay Precision Inter-assay Precision
Mean (ng/mL)0.550.993.530.581.023.74
Standard deviation0.
C V (%)5.456.063.975.174.905.08


The recovery of Human CSNK2B 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)88-10395
EDTA plasma (n=5)88-10294
Cell culture media (n=5)96-109101


Samples were spiked with high concentrations of Human CSNK2B 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 (%)95-11095-10693-108
Average (%)10310099
1:4Range (%)90-10280-9388-101
Average (%)958693
1:8Range (%)90-10481-9486-98
Average (%)958692
1:16Range (%)92-10786-9984-99
Average (%)999391

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 CSNK2B (Casein Kinase 2, beta) ELISA Kit (HUES03468) 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 CSNK2B (Casein Kinase 2, beta) ELISA Kit (HUES03468) Protein Information

UniProt Protein Function:CK2B: a regulatory subunit of the casein kinase 2 holoenzyme. Exists as a tetramer composed of two catalytic subunits, alpha and alpha-prime, and two regulatory beta subunits. The beta subunits undergo autophosphorylation. Plays a complex role in regulating the basal catalytic activity of the alpha subunit. Participates in Wnt signaling
UniProt Protein Details:

Protein type:Protein kinase, regulatory subunit

Chromosomal Location of Human Ortholog: 6p21.3

Cellular Component: cytoplasm; cytosol; nucleoplasm; nucleus; PcG protein complex; plasma membrane

Molecular Function:chromatin binding; identical protein binding; protein binding; protein domain specific binding; protein serine/threonine kinase activity; receptor binding; transcription factor binding

Biological Process: adiponectin-mediated signaling pathway; negative regulation of blood vessel endothelial cell migration; negative regulation of cell proliferation; positive regulation of activin receptor signaling pathway; protein folding; signal transduction

NCBI Summary:This gene encodes the beta subunit of casein kinase II, a ubiquitous protein kinase which regulates metabolic pathways, signal transduction, transcription, translation, and replication. The enzyme is composed of three subunits, alpha, alpha prime and beta, which form a tetrameric holoenzyme. The alpha and alpha prime subunits are catalytic, while the beta subunit serves regulatory functions. The enzyme localizes to the endoplasmic reticulum and the Golgi apparatus. Two transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Sep 2013]
UniProt Code:P67870
NCBI GenInfo Identifier:54037520
NCBI Gene ID:1460
NCBI Accession:P67870.1
UniProt Secondary Accession:P67870,P07312, P13862, Q4VX47, B0UXA9,
UniProt Related Accession:P67870
Molecular Weight:24,942 Da
NCBI Full Name:Casein kinase II subunit beta
NCBI Synonym Full Names:casein kinase 2 beta
NCBI Official Symbol:CSNK2B  
NCBI Official Synonym Symbols:G5A; CK2B; CK2N; CSK2B  
NCBI Protein Information:casein kinase II subunit beta
UniProt Protein Name:Casein kinase II subunit beta
UniProt Synonym Protein Names:Phosvitin; Protein G5a
UniProt Gene Name:CSNK2B  
UniProt Entry Name:CSK2B_HUMAN
View AllClose

Additional Information

Product type:
View AllClose

0 Reviews

View AllClose