Regulation of gene expression by RNA-binding proteins and microRNAs

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Abstract/Contents

Abstract
Circumstantial evidence suggests vast post-transcriptional regulatory networks in eukaryotes. There are scores of examples of mRNAs with rich post-transcriptional lives, and dozens of RNA-binding proteins and noncoding RNAs are suggested to have regulatory functions. While eukaryotic genomes encode hundreds of RNA-binding proteins and metazoans also encode dozens to hundreds of regulatory noncoding RNAs, few RNA-binding proteins or regulatory noncoding RNAs have been studied systematically, leaving unanswered basic questions about the scope and organization of post-transcriptional regulation in any eukaryote. First, I present studies aimed at uncovering some of the basic principles of post-transcriptional regulation in eukaryotes, via searching for the RNA targets of 40 proteins in the yeast Saccharomyces cerevisiae: a selective sample of the approximately 600 annotated and predicted RBPs as well as several proteins not annotated as RBPs. Second, I present a simple biochemical approach to identify direct targets of specific microRNAs, important noncoding regulatory RNAs, that regulate protein synthesis of most mammalian mRNAs. Third, I present experiments that uncover the magnitude and respective contributions of translational repression and mRNA decay of microRNA-mediated regulation. These studies apply simple, yet powerful approaches to systematically dissect various aspects of post-transcriptional regulation and uncover a wealth of novel information regarding regulation by RNA-binding proteins and microRNAs.

Description

Type of resource text
Form electronic; electronic resource; remote
Extent 1 online resource.
Copyright date 2010
Publication date 2009, c2010; 2009
Issuance monographic
Language English

Creators/Contributors

Associated with Hogan, Daniel Joseph
Associated with Stanford University, Department of Biochemistry.
Primary advisor Brown, Patrick O'Reilly, 1954-
Primary advisor Herschlag, Daniel
Thesis advisor Brown, Patrick O'Reilly, 1954-
Thesis advisor Herschlag, Daniel
Thesis advisor Ferrell, James Ellsworth
Thesis advisor Stearns, Tim
Advisor Ferrell, James Ellsworth
Advisor Stearns, Tim

Subjects

Genre Theses

Bibliographic information

Statement of responsibility Daniel Joseph Hogan.
Note Submitted to the Department of Biochemistry.
Thesis Thesis (Ph.D.)--Stanford University, 2010.
Location electronic resource

Access conditions

Copyright
© 2010 by Daniel Joseph Hogan
License
This work is licensed under a Creative Commons Attribution Non Commercial 3.0 Unported license (CC BY-NC).

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