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1027
Phospho-GSK-3α (Ser21) Blocking Peptide

Phospho-GSK-3α (Ser21) Blocking Peptide #1027

This peptide is used to block Phospho-GSK-3α (Ser21) (36E9) Rabbit mAb #9316 reactivity.

The quality of the peptide was evaluated by reversed-phase HPLC and by mass spectrometry. The peptide blocks Phospho-GSK-3α (Ser21) (36E9) Rabbit mAb #9316 by dot blot.

Use as a blocking reagent to evaluate the specificity of antibody reactivity in dot blot protocols.

Storage:

Supplied in 20 mM potassium phosphate (pH 7.0), 50 mM NaCl, 0.1 mM EDTA, 1 mg/ml BSA and 5% glycerol. 1% DMSO. Store at –20°C.

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).

  1. Welsh, G.I. et al. (1996) Trends Cell Biol 6, 274-9.
  2. Srivastava, A.K. and Pandey, S.K. (1998) Mol Cell Biochem 182, 135-41.
  3. Cross, D.A. et al. (1995) Nature 378, 785-9.
  4. Nusse, R. (1997) Cell 89, 321-3.
  5. Diehl, J.A. et al. (1998) Genes Dev 12, 3499-511.
Entrez-Gene Id
2931
Swiss-Prot Acc.
P49840
For Research Use Only. Not For Use In Diagnostic Procedures.

Cell Signaling Technology is a trademark of Cell Signaling Technology, Inc.

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