Optogenetic engineering of BAR domain proteins

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Abstract/Contents

Abstract
Nanoscale membrane curvature is understood to play an active role in essential cellular processes such as endocytosis, exocytosis, and actin dynamics. Few methods, however, can precisely manipulate membrane curvature in live cells. Making use of BAR domain proteins, a well-studied superfamily of membrane-remodeling proteins, and the improved Light-Inducible Dimer (iLID) system, we developed a new method of generating nanoscale membrane curvature in live cells that is controllable, reversible, and capable of precise spatial and temporal manipulation. As proof of concept, we first engineered two optogenetic systems, opto-FBAR and opto-IBAR, that allow light-inducible formation of inward and outward membrane curvature, respectively. We then expanded upon this approach by engineering other BAR domain superfamily members to be light-inducible, including members of the FCHO, PACSIN, Amphiphysin, and NOSTRIN subfamilies. These systems present a novel approach for light-inducible manipulation of nanoscale membrane curvature in live cells.

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 2023; ©2023
Publication date 2023; 2023
Issuance monographic
Language English

Creators/Contributors

Author Jones, Taylor E
Degree supervisor Cui, Bianxiao
Thesis advisor Cui, Bianxiao
Thesis advisor Dassama, Laura
Thesis advisor Lin, Michael Z
Degree committee member Dassama, Laura
Degree committee member Lin, Michael Z
Associated with Stanford University, School of Humanities and Sciences
Associated with Stanford University, Department of Chemistry

Subjects

Genre Theses
Genre Text

Bibliographic information

Statement of responsibility Taylor Jones IV.
Note Submitted to the Department of Chemistry.
Thesis Thesis Ph.D. Stanford University 2023.
Location https://purl.stanford.edu/cm350bb4222

Access conditions

Copyright
© 2023 by Taylor E Jones
License
This work is licensed under a Creative Commons Attribution 3.0 Unported license (CC BY).

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