Background:

Glycogen synthase kinase-3α (GSK-3α) and GSK-3β are highly similar isoforms of serine/ threonine kinases that regulate metabolic enzymes and transcription factors, which are responsible for coordinating processes such as glycogen synthesis and cell adhesion. GSK-3β activity is also required for nuclear activity of Rel dimers, which mediate an anti-apoptotic response to TNFα in mice. GSK-3 catalytic kinase activity is controlled through differential phosphorylation of serine/threonine residues, which have an inhibitory effect, and tyrosine residues, which have an activating effect. Growth factor stimulation of mammalian cells expressing GSK-3α and GSK-3β induces phosphorylation of Ser 21 and Ser 9, respectively, through a phosphatidylinositol 3-kinase (PI 3-K)-protein kinase B (PKB)-dependent pathway, thereby enhancing proliferative signals. Additionally, GSK-3 physically associates with cAMP-dependent protein kinase A (PKA), which phosphorylates Ser 21 of GSK-3α or Ser 9 of GSK-3β and inactivates both forms. GSK-3α/β is positively regulated by phosphorylation on Tyr 279 and Tyr 216, respectively. Activated GSK-3α/β participates in energy metabolism, neuronal cell development, and body pattern formation. Tyrosine dephosphorylation of GSK-3 is involved in its extracellular signal-dependent inactivation.

Specificity:

GSK3α/β (Phospho-Y216/Y279) polyclonal antibody detects endogenous levels of GSK3α/β protein only when phosphorylated at Tyr279/216

Alternative names:

GSK-3 alpha, GSK3A, GSK-3 beta, GSK3B, Factor A, Glycogen synthase kinase 3 alpha, Glycogen synthase kinase 3 beta, GSK3 alpha, GSK3 beta, GSK3B,

Species reactivity:

Human, Mouse, Rat

Host:

Rabbit

Ig type:

Rabbit IgG, 1mg/ml in PBS with 0.02% sodium azide, 50% glycerol, pH7.2

Immunogen:

Synthetic phospho-peptide corresponding to residues surrounding Tyr216 and 279 of human GSK3(alpha+beta).

Purification & Purity:

ProA affinity purified

Molecular weight:

51 kDa

Applications:

WB ICC IHC IP

Usage:

WB:1:1,000 ICC:1:100-1:500 IHC:1:50-1:200

Storage:

Store at +4°C after thawing. Aliquot store at -20°C or -80°C. Avoid repeated freeze / thaw cycles.

Precautions:

For research use only, not for use in diagnostic procedure.

More info:

Email: info@sobekbio.com

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