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Cell Res. 2011 Jul;21(7):1002-12. doi: 10.1038/cr.2011.86. Epub 2011 May 24.

Wnt signaling through T-cell factor phosphorylation.

Author information

  • Department of Developmental and Regenerative Biology, Mount Sinai School of Medicine, New York, NY 10029, USA. sergei.sokol@mssm.edu

Abstract

Embryonic signaling pathways often lead to a switch from default repression to transcriptional activation of target genes. A major consequence of Wnt signaling is stabilization of β-catenin, which associates with T-cell factors (TCFs) and 'converts' them from repressors into transcriptional activators. The molecular mechanisms responsible for this conversion remain poorly understood. Several studies have reported on the regulation of TCF by phosphorylation, yet its physiological significance has been unclear: in some cases it appears to promote target gene activation, in others Wnt-dependent transcription is inhibited. This review focuses on recent progress in the understanding of context-dependent post-translational regulation of TCF function by Wnt signaling.

PMID:
21606952
[PubMed - indexed for MEDLINE]
PMCID:
PMC3193496
Free PMC Article
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