Oncogenic β-catenin mutations evade pH-regulated degradation

β-catenin has roles in cell-cell adhesion and Wnt signaling. We recently showed that β-catenin protein abundance is decreased at higher intracellular pH (pHi), mediated by pH-sensitive interaction with the beta-transducin repeat containing E3 ubiquitin protein ligase (β-TrCP). Increased pHi facilita...

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Main Authors: Bree K. Grillo-Hill, Katharine A. White
Format: Article
Language:English
Published: Taylor & Francis Group 2019-01-01
Series:Molecular & Cellular Oncology
Subjects:
Online Access:http://dx.doi.org/10.1080/23723556.2018.1554470
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author Bree K. Grillo-Hill
Katharine A. White
author_facet Bree K. Grillo-Hill
Katharine A. White
author_sort Bree K. Grillo-Hill
collection DOAJ
description β-catenin has roles in cell-cell adhesion and Wnt signaling. We recently showed that β-catenin protein abundance is decreased at higher intracellular pH (pHi), mediated by pH-sensitive interaction with the beta-transducin repeat containing E3 ubiquitin protein ligase (β-TrCP). Increased pHi facilitates β-TrCP binding and degradation of β-catenin. β-catenin mutations that abrogate the pH-sensitive interaction induce significant tumors not seen with other β-catenin stabilizing mutants.
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spelling doaj.art-fe8e666f03e0458a9c2d5064be93e2542023-09-22T09:11:00ZengTaylor & Francis GroupMolecular & Cellular Oncology2372-35562019-01-016110.1080/23723556.2018.15544701554470Oncogenic β-catenin mutations evade pH-regulated degradationBree K. Grillo-Hill0Katharine A. White1San Jose State UniversityUniversity of California, San Franciscoβ-catenin has roles in cell-cell adhesion and Wnt signaling. We recently showed that β-catenin protein abundance is decreased at higher intracellular pH (pHi), mediated by pH-sensitive interaction with the beta-transducin repeat containing E3 ubiquitin protein ligase (β-TrCP). Increased pHi facilitates β-TrCP binding and degradation of β-catenin. β-catenin mutations that abrogate the pH-sensitive interaction induce significant tumors not seen with other β-catenin stabilizing mutants.http://dx.doi.org/10.1080/23723556.2018.1554470β-cateninintracellular phwnt signalingubiquitinationproteasomeβ-trcptumorigenesis
spellingShingle Bree K. Grillo-Hill
Katharine A. White
Oncogenic β-catenin mutations evade pH-regulated degradation
Molecular & Cellular Oncology
β-catenin
intracellular ph
wnt signaling
ubiquitination
proteasome
β-trcp
tumorigenesis
title Oncogenic β-catenin mutations evade pH-regulated degradation
title_full Oncogenic β-catenin mutations evade pH-regulated degradation
title_fullStr Oncogenic β-catenin mutations evade pH-regulated degradation
title_full_unstemmed Oncogenic β-catenin mutations evade pH-regulated degradation
title_short Oncogenic β-catenin mutations evade pH-regulated degradation
title_sort oncogenic β catenin mutations evade ph regulated degradation
topic β-catenin
intracellular ph
wnt signaling
ubiquitination
proteasome
β-trcp
tumorigenesis
url http://dx.doi.org/10.1080/23723556.2018.1554470
work_keys_str_mv AT breekgrillohill oncogenicbcateninmutationsevadephregulateddegradation
AT katharineawhite oncogenicbcateninmutationsevadephregulateddegradation