Product Name:	Human GSK 3 beta / Glycogen synthase kinase-3 beta ELISA Kit
Product Code:	HUFI00456
Size:	96 Assays
Alias:	GSK3beta, Glycogen Synthase Kinase 3 Beta, GSK3B, glycogen synthase kinase-3 beta, GSK-3 beta, GSK3beta isoform
Detection method:	Sandwich ELISA, Double Antibody
Application:	This immunoassay kit allows for the in vitro quantitative determination of Human GSK3beta concentrations in serum plasma and other biological fluids.
Sensitivity:	0.375ng/ml
Range:	0.625-40ng/ml
Storage:	4°C for 6 months
Note:	For Research Use Only

Recovery:

Matrices listed below were spiked with certain level of Human GSK3beta and the recovery rates were calculated by comparing the measured value to the expected amount of Human GSK3beta in samples.

Matrix	Recovery range(%)	Average(%)
serum(n=5)	86-103	95
EDTA plasma(n=5)	85-103	96
UFH plasma(n=5)	86-105	94

Linearity:

The linearity of the kit was assayed by testing samples spiked with appropriate concentration of Human GSK3beta and their serial dilutions. The results were demonstrated by the percentage of calculated concentration to the expected.

Sample	1:2	1:4	1:8
serum(n=5)	99-103%	85-102%	86-105%
EDTA plasma(n=5)	84-98%	87-96%	82-96%
UFH plasma(n=5)	80-95%	81-98%	83-100%

CV(%):

Intra-Assay: CV<8%
Inter-Assay: CV<10%

Component	Quantity	Storage
ELISA Microplate (Dismountable)	8×12 strips	4°C for 6 months
Lyophilized Standard	2	4°C/-20°C
Sample/Standard Dilution Buffer	20ml	4°C
Biotin-labeled Antibody(Concentrated)	120ul	4°C (Protect from light)
Antibody Dilution Buffer	10ml	4°C
HRP-Streptavidin Conjugate(SABC)	120ul	4°C (Protect from light)
SABC Dilution Buffer	10ml	4°C
TMB Substrate	10ml	4°C (Protect from light)
Stop Solution	10ml	4°C
Wash Buffer(25X)	30ml	4°C
Plate Sealer	5	-

Other materials and equipment required:

Microplate reader with 450 nm wavelength filter
Multichannel Pipette, Pipette, microcentrifuge tubes and disposable pipette tips
Incubator
Deionized or distilled water
Absorbent paper
Buffer resevoir

Uniprot

P49841

UniProt Protein Function:	GSK3B: a proline-directed protein kinase of the GSK family. Phosphorylates and inactivates glycogen synthase. Participates in the Wnt signaling pathway. Involved in energy metabolism, neuronal cell development, and body pattern formation
UniProt Protein Details:	Protein type:Protein kinase, CMGC; EC 2.7.11.26; EC 2.7.11.1; Protein kinase, Ser/Thr (non-receptor); Kinase, protein; CMGC group; GSK family; GSK subfamily Chromosomal Location of Human Ortholog: 3q13.3 Cellular Component: axon; beta-catenin destruction complex; cell soma; centrosome; cytoplasm; cytosol; dendritic shaft; dendritic spine; growth cone; lipid raft; mitochondrion; nucleus; perinuclear region of cytoplasm; plasma membrane; ribonucleoprotein complex Molecular Function:ATP binding; beta-catenin binding; integrin binding; ionotropic glutamate receptor binding; kinase activity; NF-kappaB binding; p53 binding; protein binding; protein kinase activity; protein kinase binding; protein serine/threonine kinase activity; tau protein binding; tau-protein kinase activity; ubiquitin protein ligase binding Biological Process: aging; axonogenesis; cell migration; circadian rhythm; dopamine receptor signaling pathway; epithelial to mesenchymal transition; ER overload response; establishment of cell polarity; fat cell differentiation; genetic imprinting; glycogen metabolic process; hippocampus development; myoblast fusion; negative regulation of apoptosis; negative regulation of dendrite morphogenesis; negative regulation of glycogen biosynthetic process; negative regulation of MAP kinase activity; negative regulation of neuron maturation; negative regulation of NFAT protein import into nucleus; negative regulation of nitric-oxide synthase activity; negative regulation of protein binding; negative regulation of protein complex assembly; organ morphogenesis; peptidyl-serine phosphorylation; peptidyl-threonine phosphorylation; positive regulation of axon extension; positive regulation of cell-matrix adhesion; positive regulation of GTPase activity; positive regulation of neuron apoptosis; positive regulation of peptidyl-serine phosphorylation; positive regulation of proteasomal ubiquitin-dependent protein catabolic process; positive regulation of protein binding; positive regulation of protein catabolic process; positive regulation of protein complex assembly; positive regulation of protein export from nucleus; positive regulation of smooth muscle cell proliferation; positive regulation of transcription from RNA polymerase II promoter; proteasomal ubiquitin-dependent protein catabolic process; protein amino acid autophosphorylation; protein amino acid phosphorylation; protein export from nucleus; re-entry into mitotic cell cycle; regulation of microtubule-based process; regulation of neuronal synaptic plasticity; response to activity; response to drug; response to estradiol stimulus; response to insulin stimulus; Wnt receptor signaling pathway; Wnt receptor signaling pathway through beta-catenin
NCBI Summary:	The protein encoded by this gene is a serine-threonine kinase, belonging to the glycogen synthase kinase subfamily. It is involved in energy metabolism, neuronal cell development, and body pattern formation. Polymorphisms in this gene have been implicated in modifying risk of Parkinson disease, and studies in mice show that overexpression of this gene may be relevant to the pathogenesis of Alzheimer disease. Alternatively spliced transcript variants encoding different isoforms have been found for this gene.[provided by RefSeq, Sep 2009]
UniProt Code:	P49841
NCBI GenInfo Identifier:	20455502
NCBI Gene ID:	2932
NCBI Accession:	P49841.2
UniProt Secondary Accession:	P49841,Q9BWH3, Q9UL47, D3DN89,
UniProt Related Accession:	P49841
Molecular Weight:	48,034 Da
NCBI Full Name:	Glycogen synthase kinase-3 beta
NCBI Synonym Full Names:	glycogen synthase kinase 3 beta
NCBI Official Symbol:	GSK3BÃ‚ Ã‚
NCBI Protein Information:	glycogen synthase kinase-3 beta
UniProt Protein Name:	Glycogen synthase kinase-3 beta
UniProt Synonym Protein Names:	Serine/threonine-protein kinase GSK3B (EC:2.7.11.1)
Protein Family:	Glycogen synthase kinase
UniProt Gene Name:	GSK3BÃ‚ Ã‚
UniProt Entry Name:	GSK3B_HUMAN

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

Before adding to wells, equilibrate the SABC working solution and TMB substrate for at least 30 min at 37°C. When diluting samples and reagents, they must be mixed completely and evenly. It is recommended to plot a standard curve for each test.

Step	Protocol
1.	Set standard, test sample and control (zero) wells on the pre-coated plate respectively, and then, record their positions. It is recommended to measure each standard and sample in duplicate. Wash plate 2 times before adding standard, sample and control (zero) wells!
2.	Aliquot 0.1ml standard solutions into the standard wells.
3.	Add 0.1 ml of Sample / Standard dilution buffer into the control (zero) well.
4.	Add 0.1 ml of properly diluted sample ( Human serum, plasma, tissue homogenates and other biological fluids.) into test sample wells.
5.	Seal the plate with a cover and incubate at 37 °C for 90 min.
6.	Remove the cover and discard the plate content, clap the plate on the absorbent filter papers or other absorbent material. Do NOT let the wells completely dry at any time. Wash plate X2.
7.	Add 0.1 ml of Biotin- detection antibody working solution into the above wells (standard, test sample & zero wells). Add the solution at the bottom of each well without touching the side wall.
8.	Seal the plate with a cover and incubate at 37°C for 60 min.
9.	Remove the cover, and wash plate 3 times with Wash buffer. Let wash buffer rest in wells for 1 min between each wash.
10.	Add 0.1 ml of SABC working solution into each well, cover the plate and incubate at 37°C for 30 min.
11.	Remove the cover and wash plate 5 times with Wash buffer, and each time let the wash buffer stay in the wells for 1-2 min.
12.	Add 90 Ã‚µl of TMB substrate into each well, cover the plate and incubate at 37°C in dark within 10-20 min. (Note: This incubation time is for reference use only, the optimal time should be determined by end user.) And the shades of blue can be seen in the first 3-4 wells (with most concentrated standard solutions), the other wells show no obvious color.
13.	Add 50 Ã‚µl of Stop solution into each well and mix thoroughly. The color changes into yellow immediately.
14.	Read the O.D. absorbance at 450 nm in a microplate reader immediately after adding the stop solution.

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 Type	Protocol
Serum	If using serum separator tubes, allow samples to clot for 30 minutes at room temperature. Centrifuge for 10 minutes at 1,000x g. Collect the serum fraction and assay promptly or aliquot and store the samples at -80°C. Avoid multiple freeze-thaw cycles. If serum separator tubes are not being used, allow samples to clot overnight at 2-8°C. Centrifuge for 10 minutes at 1,000x g. Remove serum and assay promptly or aliquot and store the samples at -80°C. Avoid multiple freeze-thaw cycles.
Plasma	Collect plasma using EDTA or heparin as an anticoagulant. Centrifuge samples at 4°C for 15 mins at 1000 × g within 30 mins of collection. Collect the plasma fraction and assay promptly or aliquot and store the samples at -80°C. Avoid multiple freeze-thaw cycles. Note: Over haemolysed samples are not suitable for use with this kit.
Urine & Cerebrospinal Fluid	Collect the urine (mid-stream) in a sterile container, centrifuge for 20 mins at 2000-3000 rpm. Remove supernatant and assay immediately. If any precipitation is detected, repeat the centrifugation step. A similar protocol can be used for cerebrospinal fluid.
Cell culture supernatant	Collect the cell culture media by pipette, followed by centrifugation at 4°C for 20 mins at 1500 rpm. Collect the clear supernatant and assay immediately.
Cell lysates	Solubilize cells in lysis buffer and allow to sit on ice for 30 minutes. Centrifuge tubes at 14,000 x g for 5 minutes to remove insoluble material. Aliquot the supernatant into a new tube and discard the remaining whole cell extract. Quantify total protein concentration using a total protein assay. Assay immediately or aliquot and store at ≤ -20 °C.
Tissue homogenates	The preparation of tissue homogenates will vary depending upon tissue type. Rinse tissue with 1X PBS to remove excess blood & homogenize in 20ml of 1X PBS (including protease inhibitors) and store overnight at ≤ -20°C. Two freeze-thaw cycles are required to break the cell membranes. To further disrupt the cell membranes you can sonicate the samples. Centrifuge homogenates for 5 mins at 5000xg. Remove the supernatant and assay immediately or aliquot and store at -20°C or -80°C.
Tissue lysates	Rinse tissue with PBS, cut into 1-2 mm pieces, and homogenize with a tissue homogenizer in PBS. Add an equal volume of RIPA buffer containing protease inhibitors and lyse tissues at room temperature for 30 minutes with gentle agitation. Centrifuge to remove debris. Quantify total protein concentration using a total protein assay. Assay immediately or aliquot and store at ≤ -20 °C.
Breast Milk	Collect milk samples and centrifuge at 10,000 x g for 60 min at 4°C. Aliquot the supernatant and assay. For long term use, store samples at -80°C. Minimize freeze/thaw cycles.