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FLASH GENE
Symbol GSK3A contributors: mct/shn - updated : 06-03-2019
HGNC name glycogen synthase kinase 3 alpha
HGNC id 4616
EXPRESSION
Type ubiquitous
   expressed in (based on citations)
organ(s)
SystemOrgan level 1Organ level 2Organ level 3Organ level 4LevelPubmedSpeciesStageRna symbol
Cardiovascularheart   highly
Lymphoid/Immunespleen   moderately
 thymus   predominantly
Nervousbrain   highly
Reproductivefemale systemovary  predominantly
 male systemprostate  predominantly
 male systemtestis  predominantly
Respiratorylung   highly
Urinarykidney   highly
tissue
SystemTissueTissue level 1Tissue level 2LevelPubmedSpeciesStageRna symbol
Blood / hematopoieticplasma  predominantly Homo sapiens
Muscularstriatumskeletal  
cells
SystemCellPubmedSpeciesStageRna symbol
Blood/Hematopoieticneutrophil Homo sapiens
cell lineage
cell lines
fluid/secretion
at STAGE
PROTEIN
PHYSICAL PROPERTIES
STRUCTURE
motifs/domains
protein kinase domains
conjugated
mono polymer monomer
HOMOLOGY
interspecies homolog to shaggy' (zeste-white3), Drosophila
ortholog to Gsk3a, Mus musculus
ortholog to Gsk3a, Rattus norvegicus
ortholog to gsk3a, Danio rerio
ortholog to GSK3A, Pan troglodytes
Homologene
FAMILY
  • protein kinase superfamily
  • CMGC Ser/Thr protein kinase family
  • GSK-3 subfamily
  • CATEGORY enzyme , receptor membrane serine/threonine tyrosine
    SUBCELLULAR LOCALIZATION     intracellular
    intracellular,cytoplasm,organelle,mitochondria
    intracellular,cytoplasm,cytosolic
    intracellular,nucleus
    text
  • nuclear localization induced by proapoptotic stimuli
  • localized at the growth cone of developing axons
  • basic FUNCTION
  • glycogen synthase kinase, dual-specificity protein-kinase
  • an important regulator of muscle insulin action
  • regulator of glycogen synthesis in skeletal muscle through Tyr (activating) or Ser/Thr (inactivating) phosphorylation
  • key downstream target of PI3-kinase/AKT survival sognaling pathway and involved in regulation of apoptosis
  • regulates mitochondrial outer membrane permeabilization and apoptosis by destabilization of MCL-1
  • regulates microtubule growth and stability, phosphorylating many microtubule associated proteins such as tau, MAP1b and CRMP-2 or APC
  • playing an essential role for axon outgrowth
  • implicated in the control of several regulatory proteins including glycogen synthase
  • plays a role in the WNT and PI3K signaling pathways
  • a downstream effector of PI3K that phosphorylates proteins involved in regulating microtubule dynamics and microtubule-based transport
  • role in NK cell cytotoxicity and X-linked lymphoproliferative disease
  • regulates production of Alzheimer's disease amyloid-beta peptides
  • role in control neurogenesis, neuronal polarization and axon growth and guidance during brain development
  • negatively regulates the expression of the adherens junction protein CDH1, thereby influencing barrier function and inhibiting epithelial–mesenchymal transition (EMT)
  • controls axon growth via CLASP1-mediated regulation of growth cone microtubules
  • new role of GSK3A, GSK3B as regulators of lysosomal biogenesis which could have important consequences in neurodegenerative diseases, such as AD
  • GSK3A is a multifunctional serine/threonine protein kinase that plays a role in the Wnt signaling pathways and is implicated in the control of several regulatory proteins and transcription factors
  • GSK3A contributed to the neuronal architecture of the hippocampal CA1 sub-region that is most vulnerable in Alzheimer disease
  • GSK3A, GSK3B were regulated independently, but that they acted on the same physiological functions in learning and memory, in mobility and in behavior
  • GSK3A is the main isoform expressed in neutrophils and many different pathways can converge to inhibit GSK3A activity via Ser21-phosphorylation
  • GSK3B, but not GSK3A, negatively controls the neuronal differentiation of progenitor cells and GSK3B may act downstream of the mammalian target of rapamycin complex1 signaling pathway
  • cardiac myocyte GSK3A, GSK3B3 is required to maintain normal cardiac homeostasis, and its loss is incompatible with life because of cell cycle dysregulation that ultimately results in a severe fatal dilated cardiomyopathy
  • isoform-specific GSK3A activity is negatively correlated with human sperm motility
  • CELLULAR PROCESS
    PHYSIOLOGICAL PROCESS development , neurogenesis
    text key regulatory enzyme in glucose metabolism
    PATHWAY
    metabolism carbohydrate
    signaling signal transduction
  • wingless signaling pathway
  • autophagy-activating pathway that comprises GSK3A, GSK3B, KAT5, and ULK1
  • novel GSK3A, GSK3B/DPYSL2 pathway that connects neuronal activity to dendritic growth
  • a component
  • inhibitory component
  • INTERACTION
    DNA
    RNA
    small molecule
    protein
  • Eukaryotic initiation factor eIF2B
  • mediates BCL-3 phosphorylation
  • specific GSK3A substrates, such as APC and collapsin response mediator protein 2 (CRMP2), support axon growth by regulating the stability of axonal microtubules (MTs)
  • redundant functions of GSK3A and GSK3B through phosphorylation of RELA at Thr-254 play a crucial role in early stages of chondrocyte differentiation
  • PRKCA and AKT1 modulate platelet function by phosphorylating and inhibiting GSK3A/GSK3B, thereby relieving the negative effect of GSK3A/GSK3B on thrombin-mediated platelet activation
  • GSK3A regulates osteogenic activity of SP7
  • GSK3A, GSK3B activity status is regulated by the circadian clock and GSK3A, GSK3B feeds back to regulate the molecular clock amplitude in the
  • GSK3A, and PRMT1 cooperate to orchestrate a series of posttranslational modifications on the Intermediate filament (IF) -anchoring protein desmoplakin (DSP) that play an essential role in coordinating cytoskeletal dynamics and cellular adhesion
  • GSK3A is regulated by CREB1 in lung cancer and is required for the cell viability
  • RABEP2 is a novel primed substrate of GSK3A, and thus a potential biomarker for GSK3A activity
  • cell & other
    REGULATION
    inhibited by serine phosphorylation in response to extracellular cues
    GSK-3 binding protein GBP
    insulin mediated by protein kinase B
    repressed by protein kinase A
    Other may be regulated by multiple mechanisms and its basal activity subjected to activation or inhibition
    phosphorylated and inactivated by AKT
    ASSOCIATED DISORDERS
    corresponding disease(s)
    Susceptibility
    Variant & Polymorphism
    Candidate gene
    Marker
    Therapy target
  • Inhibition of GSK3 in a preclinical murine model of MLL leukaemia provides promising evidence of efficacy and earmarks GSK3 as a candidate cancer drug target
  • ANIMAL & CELL MODELS
  • alterations of GSK3 profoundly affect neuronal morphology in culture
  • knockdown of both GSK3B markedly reduced axon growth in dissociated cultures
  • concomitant loss of Gsk3a and Gsk3b in the oocyte significantly increased neonatal death rate due to congestive heart failure secondary to ventricular hyperplasia
  • dominant-negative GSK-3 Xenopus mutants induced dorsal differentiation, whereas wild-type GSK-3 induced ventralization
  • disruption of the Gsk3a gene in testis results in normal spermatogenesis, but mature sperm present a reduced motility, rendering male mice infertile