Matches in SemOpenAlex for { <https://semopenalex.org/work/W3206930897> ?p ?o ?g. }
- W3206930897 abstract "The Wnt/β-catenin signaling pathway plays key roles in development and adult tissue homeostasis by controlling cell proliferation and cell fate decisions. In this pathway, transcription factors TCF/LEFs are the key components to repress target gene expression by recruiting co-repressors or to activate target gene expression by recruiting β-catenin when the Wnt signals are absent or present, respectively. While progress has been made in our understanding of Wnt signaling regulation, the underlying mechanism that regulates the protein stability of the TCF/LEF family is far less clear. Here, we show that von Hippel-Lindau protein (pVHL), which is the substrate recognition component in an E3 ubiquitin ligase complex, controls TCF/LEF protein stability. Unexpectedly, pVHL directly binds to TCF/LEFs and promotes their proteasomal degradation independent of E3 ubiquitin ligase activity. Knockout of vhl in zebrafish embryos leads to a reduction of dorsal habenular neurons and this effect is upstream of dorsal habenular neurons phenotype in tcf7l2-null mutants. Our study uncovers a previously unknown mechanism for the protein stability regulation of the TCF/LEF transcription factors and demonstrates that pVHL contains a 26S proteasome binding domain that drives ubiquitin-independent proteasomal degradation. These findings provide new insights into the ubiquitin-independent actions of pVHL and uncover novel mechanistical regulation of Wnt/β-catenin signaling." @default.
- W3206930897 created "2021-10-25" @default.
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- W3206930897 date "2021-10-14" @default.
- W3206930897 modified "2023-10-16" @default.
- W3206930897 title "pVHL regulates protein stability of TCF/LEF transcription factor family via ubiquitin-independent proteasomal degradation" @default.
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- W3206930897 doi "https://doi.org/10.1101/2021.10.14.464355" @default.
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