Human GSK3a (Glycogen Synthase Kinase 3 Alpha) ELISA Kit (AEKE05982)

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SKU:
AEKE05982
Reactivity:
Human
Detection Method:
Sandwich
Sensitivity:
0.05 ng/mL
Standard:
10 ng/mL
Range:
0.16-10 ng/mL
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Description

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Product Name:Human GSK3a (Glycogen Synthase Kinase 3 Alpha) ELISA Kit
SKU:AEKE05982
Size:96 Assays
Reactivity:Human
Synonyms:Serine/threonine-protein kinase GSK3A
Detection Method:Sandwich
Sensitivity:0.05 ng/mL
Range:0.16-10 ng/mL
Standard:10 ng/mL
Assay Length:3.5h
Sample Type:Tissue Homogenates And Other Biological Fluids.
Kit Components:
ComponentQuantityStorage
48T96T
Pre-Coated Microplate6 strips x 8 wells12 strips x 8 wells4°C/-20°C
Standard (Lyophilized)1 vial2 vials4°C/-20°C
Biotinylated Antibody (100×)60 μL120 μL4°C/-20°C
Streptavidin-HRP (100×)60 μL120 μL4°C/-20°C
Standard / Sample Diluent Buffer10 mL20 mL4°C/-20°C
Biotinylated Antibody Diluent6 mL12 mL4°C/-20°C
HRP Diluent6 mL12 mL4°C/-20°C
Wash Buffer (25×)10 mL20 mL4°C/-20°C
TMB Substrate Solution6 mL10 mL4°C/-20°C (store in dark)
Stop Reagent3 mL6 mL4°C/-20°C
Plate Covers1 piece2 piecesRT

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 GSK3a. Standards or samples are added to the appropriate microtiter plate wells then with a biotin-conjugated antibody specific to Human GSK3a. 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 GSK3a, 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 GSK3a in the samples is then determined by comparing the OD of the samples to the standard curve.

Standard Curve:
Concentration (ng/mL)ODCorrected OD
10.002.0962.011
5.001.6021.517
2.501.1851.100
1.250.8260.741
0.630.5390.454
0.320.2390.154
0.160.2580.173
0.000.0850.000
Linearity:
Matrix1:21:41:81:16
Serum (n=5)88-104%84-98%95-105%88-102%
EDTA Plasma (n=5)92-104%82-96%95-102%87-98%
Heparin Plasma (n=5)90-99%83-97%81-103%89-101%
Recovery:
MatrixRecovery rangeAverage
Serum (n=5)95-107%101%
EDTA Plasma (n=5)90-105%97%
Heparin Plasma (n=5)78-90%84%
Precision:
Intra-assay Precision (Precision within an assay)
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)
Inter-assay Precision (Precision between assays)：CV%<10%
Three samples of known concentration were tested in forty separate assays to assess inter-assay precision.

*Note: The below protocol is a sample protocol. Protocols are specific to each batch/lot. For the correct instructions please follow the protocol included in your kit.

StepProtocol
1.After the kit is equilibrated at room temperature, add 100 µL of Standard Working Buffer (gradually diluted according to the instructions) or 100 µL of sample to each well, and incubate at 37°C for 80 minutes.
2.Discard the liquid in the plate, add 200 µL 1× Wash Buffer to each well, and wash the plate 3 times. After pat it dry against clean absorbent paper, add 100 µL Biotinylated Antibody Working Solution (1×) to each well, incubate at 37°C for 50 minutes.
3.Discard the liquid in the plate, add 200 µL 1× Wash Buffer to each well, and wash the plate 3 times. After pat it dry against clean absorbent paper, add 100 µL 1× Streptavidin-HRP Working Solution to each well, incubate at 37°C for 50 minutes.
4.Discard the liquid in the plate, add 200 µL 1× Wash Buffer to each well, and wash the plate 5 times. After pat it dry against clean absorbent paper, add 90 µL TMB Substrate Solution to each well, incubate at 37°C for 20 minutes in the dark.
5.Add 50 µL Stop Solution to each well, shake plate on a plate shaker for 1 minute to mix. Record the OD at 450 nm immediately, calculation of the results.

When carrying out an ELISA assay it is important to prepare your samples in order to achieve the best possible results. Below we have a list of procedures for the preparation of samples for different sample types.

Sample TypeProtocol
SerumSamples should be collected into a serum separator tube. After clotting for 2 hours at room temperature or overnight at 4°C, and then centrifuging at 1000 × g for 20 minutes. Assay freshly prepared serum immediately or store samples in aliquot at -20°C or -80°C for later use. Avoid repeated freeze-thaw cycles.
PlasmaCollect plasma using EDTA or heparin as an anticoagulant. Centrifuge samples at 1000 × g and 2-8°C for 15 minutes within 30 minutes of collection. Remove plasma and assay immediately or store samples in aliquot at -20°C or -80°C for later use. Avoid repeated freeze-thaw cycles.
Tissue homogenates1. Rinse the tissues in pre-cooled PBS to completely remove excess blood, and weigh them before homogenization.
2. Mince the tissues and homogenize in fresh lysis buffer (PBS for most tissues). Use a glass homogenizer on ice.
3. Ultrasound the suspension until the solution is clear.
4. Centrifuge for 5 minutes at 10000 × g, collect the supernatant and assay immediately or store at ≤ -20°C.
Cell lysates1. Wash adherent cells with PBS, detach with trypsin, and centrifuge at 1000 × g for 5 minutes.
2. Wash cells 3 times in PBS.
3. Resuspend cells in fresh lysis buffer at 107 cells/mL. Ultrasound if necessary.
4. Centrifuge at 1500 × g for 10 minutes at 2-8°C to remove debris. Assay immediately or store at ≤ -20°C.
UrineCollect mid-stream first urine of the day directly into a sterile container. Centrifuge to remove particulate matter. Assay immediately or aliquot and store at ≤ -20°C. Avoid repeated freeze-thaw cycles.
SalivaCollect saliva using a collection device. Centrifuge at 1000 × g for 15 minutes at 2-8°C. Remove particulates and assay immediately or aliquot and store at ≤ -20°C. Avoid repeated freeze-thaw cycles.
FecesDry feces weighing more than 50 mg were collected. Wash with PBS (w:v = 1:9). Sonicate and centrifuge at 5000 × g for 10 minutes. Collect the supernatant and assay immediately.
CSF (Cerebrospinal fluid)Remove particulates by centrifugation. Assay immediately or aliquot and store at ≤ -20°C. Avoid repeated freeze-thaw cycles.
Cell culture supernatantCentrifuge samples at 1000 × g for 20 minutes. Collect the supernatant and assay immediately or store at -20°C or -80°C. Avoid repeated freeze-thaw cycles.
Uniprot ID:P49840
Research Area:Signal transduction, Enzyme & Kinase, Metabolic pathway, Endocrinology
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