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Glycogen synthase kinase-3 beta
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Glycogen synthase kinase-3 beta

GSK3B
Available structures
PDBOrtholog search: PDBe RCSB
Identifiers
AliasesGSK3B, Gsk3b, 7330414F15Rik, 8430431H08Rik, C86142, GSK-3, GSK-3beta, GSK3, glycogen synthase kinase 3 beta
External IDsOMIM: 605004; MGI: 1861437; HomoloGene: 55629; GeneCards: GSK3B; OMA:GSK3B - orthologs
EC number2.7.11.1
Orthologs
SpeciesHumanMouse
Entrez
Ensembl
UniProt
RefSeq (mRNA)

NM_001146156
NM_002093
NM_001354596

NM_019827
NM_001347232

RefSeq (protein)

NP_001139628
NP_002084
NP_001341525

NP_001334161
NP_062801

Location (UCSC)Chr 3: 119.82 – 120.09 MbChr 16: 37.91 – 38.07 Mb
PubMed search[3][4]
Wikidata
View/Edit HumanView/Edit Mouse

Glycogen synthase kinase-3 beta, (GSK-3 beta), is an enzyme that in humans is encoded by the GSK3B gene.[5][6] In mice, the enzyme is encoded by the Gsk3b gene.[7] Abnormal regulation and expression of GSK-3 beta is associated with an increased susceptibility towards bipolar disorder.[8]

Function

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Glycogen synthase kinase-3 (GSK-3) is a proline-directed serine-threonine kinase that was initially identified as a phosphorylating and an inactivating agent of glycogen synthase. Two isoforms, alpha (GSK3A) and beta, show a high degree of amino acid homology.[5] GSK3B is involved in energy metabolism, neuronal cell development, and body pattern formation.[9][10] It might be a new therapeutic target for ischemic stroke.

Disease relevance

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Homozygous disruption of the Gsk3b locus in mice results in embryonic lethality during mid-gestation.[7] This lethality phenotype could be rescued by inhibition of tumor necrosis factor.[7]

Two SNPs at this gene, rs334558 (-50T/C) and rs3755557 (-1727A/T), are associated with efficacy of lithium treatment in bipolar disorder.[11]

Signaling pathways

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Pharmacological inhibition of ERK1/2 restores GSK-3 beta activity and protein synthesis levels in a model of tuberous sclerosis.[12]

Interactions

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GSK3B has been shown to interact with:

Overview of signal transduction pathways involved in apoptosis.

See also

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References

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Further reading

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