Elucidating the role of Axin in beta-catenin destruction and stabilization

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Abstract/Contents

Abstract
Wnts are a family of secreted ligands that regulate embryonic development and stem cell renewal. One way they do so is by increasing cellular concentrations of the transcriptional coactivator beta-catenin by blocking its degradation. As the key scaffold of the beta-catenin destruction complex, Axin promotes beta-catenin degradation. However, it is also essential for the recruitment of the destruction complex to the Wnt-bound receptors to halt beta-catenin destruction in response to a Wnt signal. While most of the essential proteins and many of the key events in Wnt/beta-catenin signal transduction are known, the precise mechanistic logic of both how the beta-catenin destruction completely efficiently destroys beta-catenin in the absence of Wnt and how Wnt binding to its receptors halts this destruction remains unclear. To probe the function of Axin in the Wnt ON and OFF states, structural, biochemical, and enzymatic analyses of the interactions among Axin, GSK-3, beta-catenin, and Dishevelled were carried out. These results inform our understanding of this fundamental signaling pathway

Description

Type of resource text
Form electronic resource; remote; computer; online resource
Extent 1 online resource
Place California
Place [Stanford, California]
Publisher [Stanford University]
Copyright date 2021; ©2021
Publication date 2021; 2021
Issuance monographic
Language English

Creators/Contributors

Author Enos, Michael David
Degree supervisor Weis, William I
Thesis advisor Weis, William I
Thesis advisor Ferrell, James Ellsworth
Thesis advisor Nusse, Roel, 1950-
Degree committee member Ferrell, James Ellsworth
Degree committee member Nusse, Roel, 1950-
Associated with Stanford University, Department of Structural Biology

Subjects

Genre Theses
Genre Text

Bibliographic information

Statement of responsibility Michael David Enos
Note Submitted to the Department of Structural Biology
Thesis Thesis Ph.D. Stanford University 2021
Location https://purl.stanford.edu/gy493zf6621

Access conditions

Copyright
© 2021 by Michael David Enos
License
This work is licensed under a Creative Commons Attribution Non Commercial 3.0 Unported license (CC BY-NC).

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