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Cited by 581

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Mitogen inactivation of glycogen synthase kinase-3 β in intact cells via serine 9 phosphorylation

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Stambolic, V, Woodgett, J R·1994·Biochemical Journal

Abstract

Glycogen synthase kinase-3 (GSK-3), a protein-serine kinase implicated in cell-fate determination and differentiation, phosphorylates several regulatory proteins that are activated by dephosphorylation in response to hormones or growth factors. GSK-3 beta is phosphorylated in vitro at serine 9 by p70 S6 kinase and p90rsk-1, resulting in its inhibition [Sutherland, Leighton, and Cohen (1993) Biochem. J. 296, 15-19]. Using HeLa cells expressing GSK-3 beta or a mutant containing alanine at residue 9, we demonstrate that serine 9 is modified in intact cells and is targeted specifically by p90rsk-1, and that phosphorylation leads to loss of activity. Since p90rsk-1 is directly activated by mitogen-activated protein kinases, agonists of this pathway, such as insulin, repress GSK-3 function.

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Crossref · 10.1042/bj3030701

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Metadata

Authors
Stambolic, V, & Woodgett, J. R.
Venue
Biochemical Journal
Published
1994-11-01
Volume
303
Issue
3
Pages
701-704
ISSN
  • 0264-6021 (ISSN-L)
  • 1470-8728
OpenAlex
W65155625
Cited by
581
References
1
FWCI
3.43
Type
journal article
Language
en
Open access
bronze

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CoChat. (2026). Citation check: Mitogen inactivation of glycogen synthase kinase-3 β in intact cells via serine 9 phosphorylation. https://app.cochat.ai/papers/10.1042/bj3030701
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Stambolic, V, & Woodgett, J. R. (1994). Mitogen inactivation of glycogen synthase kinase-3 β in intact cells via serine 9 phosphorylation. Biochemical Journal. https://doi.org/10.1042/bj3030701

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.