Product Pathways - PI3K / Akt Signaling
Phospho-GSK-3β (Ser9) (5B3) Rabbit mAb #9323
|9323S||100 µl (10 western blots)||---||In Stock||---|
|9323P||40 µl (4 western blots)||---||In Stock||---|
|9323||carrier free and custom formulation / quantity||email request|
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|W||1:1000||Human, Mouse, Rat, Monkey||Endogenous||46||Rabbit|
Species cross-reactivity is determined by western blot.
Applications Key: W=Western Blotting, IHC-P=Immunohistochemistry (Paraffin), IF-IC=Immunofluorescence (Immunocytochemistry)
Specificity / Sensitivity
Phospho-GSK-3β (Ser9) (5B3) Rabbit mAb detects endogenous levels of GSK-3β only when phosphorylated at Ser9. The antibody may cross-react weakly with the phosphorylated form of GSK-3α due to high sequence homology.
Source / Purification
Monoclonal antibody is produced by immunizing animals with a synthetic phosphopeptide corresponding to residues around Ser9 of human GSK-3β.
Western blot analysis of extracts from NIH/3T3 cells, λ-phosphatase- or PDGF-treated, using Phospho-GSK-3β (Ser9) (5B3) Rabbit mAb (upper) or GSK-3β (27C10) Rabbit mAb #9315 (lower).
Western blot analysis of extracts from wild type (lanes 1,2), GSK-3α (-/-) (lanes 3,4) and GSK-3β (-/-) (lanes 5,6) mouse embryonic fibroblast cells (MEF), untreated or PDGF treated, using Phospho-GSK-3β (Ser9) (5B3) Rabbit mAb (upper) and GSK-3α/β Antibody (lower). (MEF wild type, GSK-3α (-/-) and GSK-3β (-/-) cells were kindly provided by Dr. Jim Woodgett, University of Toronto, Canada).
Immunohistochemical analysis of paraffin-embedded human breast carcinoma using Phospho-GSK3β (Ser9) (5B3) Rabbit mAb.
Immunohistochemical analysis using Phospho-GSK-3β (Ser9) (5B3) Rabbit mAb on SignalSlide(TM) Phospho-Akt (Ser473) IHC Controls #8101 (paraffin-embedded LNCaP cells, untreated (left) or LY294002-treated (right)).
Immunohistochemical analysis of paraffin-embedded wild type (left) or GSK-3β (-/-) MEFs, using Phospho-GSK-3β (Ser9) (5B3) Rabbit mAb. (MEF wild type, GSK-3α knock out and GSK-3β knock out cells were kindly provided by Dr. Jim Woodgett, University of Toronto, Canada).
Confocal immunofluorescent analysis of wild type (left), GSK-3α (-/-) (center), or GSK-3β (-/-) (right) mouse embryonic fibroblasts (MEFs), FGF-treated (top) or phosphatase-treated (bottom), using Phospho-GSK-3β (Ser9) (5B3) Rabbit mAb (green). Actin filaments have been labeled with DY-554 phalloidin (red). Blue pseudocolor = DRAQ5® #4084 (fluorescent DNA dye). (MEF wild type, GSK-3α (-/-) and GSK-3β (-/-) cells were kindly provided by Dr. Jim Woodgett, University of Toronto, Canada).
Glycogen synthase kinase-3 (GSK-3) was initially identified as an enzyme that regulates glycogen synthesis in response to insulin (1). GSK-3 is a ubiquitously expressed serine/threonine protein kinase that phosphorylates and inactivates glycogen synthase. GSK-3 is a critical downstream element of the PI3K/Akt cell survival pathway whose activity can be inhibited by Akt-mediated phosphorylation at Ser21 of GSK-3α and Ser9 of GSK-3β (2,3). GSK-3 has been implicated in the regulation of cell fate in Dictyostelium and is a component of the Wnt signaling pathway required for Drosophila, Xenopus, and mammalian development (4). GSK-3 has been shown to regulate cyclin D1 proteolysis and subcellular localization (5).
- Guertin, D.A. et al. (2009) Cancer Cell 15, 148-59. Applications: IHC-P (paraffin).
Have you published research involving the use of our products? If so we'd love to hear about it. Please let us know!
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For Research Use Only. Not For Use In Diagnostic Procedures.
DRAQ5® is a registered trademark of Biostatus Limited.
Cell Signaling Technology® is a trademark of Cell Signaling Technology, Inc.
This antibody is developed, validated, and produced by CST using in part technology under license (granting certain rights including those under U.S. Patents No. 5,675,063 and 7,429,487) from Epitomics, Inc.