1. Recombinant Proteins
  2. Enzymes & Regulators
  3. Serine/Threonine Kinase Proteins
  4. Glycogen Synthase Kinase-3 (GSK-3)

Glycogen Synthase Kinase-3 (GSK-3)

Cat. No. Product Name / Synonyms Species Source
  • HY-P74114
    GSK-3 beta Protein, Human (sf9, His)

    Glycogen synthase kinase-3 beta; GSK-3 beta; Gsk3b

    Human Sf9 insect cells
    GSK-3β is a serine-threonine kinase and negative regulator of glucose homeostasis. GSK-3β has been implicated in neurodegenerative diseases such as Parkinson's disease and Alzheimer's disease. GSK-3β is widely expressed in multiple tissues, with particularly high levels in the brain and thyroid gland. GSK-3 beta Protein, Human (sf9, His) is the recombinant human-derived GSK-3 beta protein, expressed by Sf9 insect cells , with N-His labeled tag.
  • HY-P73090
    GSK-3 beta Protein, Mouse (sf9, His)

    Glycogen synthase kinase-3 beta; GSK-3 beta; Gsk3b

    Mouse Sf9 insect cells
    GSK-3 beta is a protein kinase that regulates cellular circadian rhythm, autophagy, and apoptosis. GSK-3 beta Protein, Mouse (sf9, His) is the recombinant mouse-derived GSK-3 beta protein, expressed by Sf9 insect cells , with N-10*His labeled tag. The total length of GSK-3 beta Protein, Mouse (sf9, His) is 420 a.a., with molecular weight of ~47 kDa.
  • HY-P700591
    GSK-3 beta Protein, Human (P. pastoris, His)

    Serine/threonine-protein kinase GSK3B

    Human P. pastoris
    GSK-3 beta is an active protein kinase that regulates a variety of cellular processes. It negatively regulates glucose homeostasis, Wnt signaling, and transcription factors by phosphorylating substrates such as glycogen synthase, CTNNB1, and JUN. GSK-3 beta Protein, Human (P. pastoris, His) is the recombinant human-derived GSK-3 beta protein, expressed by P. pastoris , with N-6*His labeled tag.
  • HY-P701690
    GSK3α Protein, Human (Sf9, GST)

    GSK3A; Glycogen synthase kinase-3 alpha; GSK-3 alpha; Serine/threonine-protein kinase GSK3A

    Human Sf9 insect cells
    GSK3B is a protein involved in various cellular processes. It regulates glycogen synthesis, Wnt signaling, apoptosis, autophagy, and neuronal functions. It phosphorylates and deactivates specific proteins, impacting their activity and function in the cell. GSK3α Protein, Human (Sf9, GST) is the recombinant human-derived GSK3α protein, expressed by Sf9 insect cells , with N-GST labeled tag. The total length of GSK3α Protein, Human (Sf9, GST) is 482 a.a., with molecular weight of ~77.5 kDa.
Cat. No. Product Name Effect Purity

Glycogen synthase kinase 3 (GSK-3) is a multifunctional serine/threonine kinase found in all eukaryotes. GSK-3 is one of the few signaling mediators that play central roles in a diverse range of signaling pathways, including those activated by Wnt, PI3K, growth factors, cytokines, and ligands for G protein-coupled receptors. The PI3K pathway is known for regulating metabolism, cell growth, and cell survival. The PI3K activity is stimulated by diverse oncogenes and growth factor receptors. PI3K-mediated production of PIP3 leads to the activation of Akt. The activation of Akt leads to the phosphorylation of GSK-3, which is active in resting cells, but is inactivated by the phosphorylation. The GSK-3 has been linked to the regulation of an assembly of transcription factors, including β-catenin, NF-κB, c-Jun, CREB, and STAT. Thus, the altered activity of GSK-3 causes various effects on cytokine expression. 

 

In the absence of Wnt signaling, β-catenin is phosphorylated by CK1 and GSK-3. This phosphorylation leads to recognition by β-TrCP, leading to the ubiquitylation of β-catenin and degradation by the proteasome. Upon binding of a lipid-modified Wnt protein to the receptor complex, a signaling cascade is initiated. LRP is phosphorylated by CK1/CK2 and GSK-3, and Axin is recruited to the plasma membrane. The kinases in the β-catenin destruction complex are inactivated and β-catenin translocates to the nucleus to form an active transcription factor complex with TCF, leading to transcription of a large set of target genes.

 

Some endogenous growth factors could bind to and activate the tyrosine kinase receptor. This facilitates the recruitment of other proteins (SHC, SOS), which results in the activation of the ERK-MAPK cascade and the inhibition of GSK-3. GSK-3 exerts many cellular effects: it regulates cytoskeletal proteins, and is important in determining cell survival/cell death. GSK-3 has also been identified as a target for the actions of lithium. GSK-3 can inhibit glycogen synthase, the enzyme that catalyzes the transfer of glucose from UDPG to glycogen[1][2].

 

Reference:

[1]. Brenner D, et al. Regulation of tumour necrosis factor signalling: live or let die.Nat Rev Immunol. 2015 Jun;15(6):362-74. 
[2]. Conrad M, et al. Regulated necrosis: disease relevance and therapeutic opportunities.Nat Rev Drug Discov. 2016 May;15(5):348-66.