Molecular basis of yeast prion formation
| dc.contributor.author | Toombs, James A., author | |
| dc.contributor.author | Ross, Eric, advisor | |
| dc.date.accessioned | 2024-03-13T20:28:01Z | |
| dc.date.available | 2024-03-13T20:28:01Z | |
| dc.date.issued | 2009 | |
| dc.description.abstract | Amyloid fibers are highly organized protein aggregates that are associated with many fatal diseases. Prions represent a unique class of amyloid fibers that are distinguished by their infectivity and inheritability. In the yeast S. cerevisiae, there are several known prion forming proteins. Since the discovery of the first yeast prions in the early 1990s, they have provided a useful model system for studying the biology of prion proteins. While it has been determined that amino acid composition is important to prion formation, there has not yet been any quantitative study aimed at determining how composition promotes or inhibits prion formation. Without this knowledge, our understanding of the events that drive prion formation and our ability to identify new prion-forming proteins is severely limited. In this dissertation, we describe our experiments with the yeast prion protein Sup35p that have illuminated the sequence requirements for yeast prion formation. From these results, we conclude that: (i) amino acid composition, not primary sequence, is the major driving force behind yeast prion propagation, and (ii) prion formation occurs in domains characterized by relatively few prion promoting residues dispersed throughout an intrinsically disordered region. | |
| dc.format.medium | born digital | |
| dc.format.medium | doctoral dissertations | |
| dc.identifier | ETDF_Toombs_2009_3385182.pdf | |
| dc.identifier.uri | https://hdl.handle.net/10217/237990 | |
| dc.language | English | |
| dc.language.iso | eng | |
| dc.publisher | Colorado State University. Libraries | |
| dc.relation.ispartof | 2000-2019 | |
| dc.rights | Copyright and other restrictions may apply. User is responsible for compliance with all applicable laws. For information about copyright law, please see https://libguides.colostate.edu/copyright. | |
| dc.rights.license | Per the terms of a contractual agreement, all use of this item is limited to the non-commercial use of Colorado State University and its authorized users. | |
| dc.subject | amyloid fibers | |
| dc.subject | prion formation | |
| dc.subject | prion proteins | |
| dc.subject | protein aggregates | |
| dc.subject | molecular biology | |
| dc.subject | biochemistry | |
| dc.title | Molecular basis of yeast prion formation | |
| dc.type | Text | |
| dcterms.rights.dpla | This Item is protected by copyright and/or related rights (https://rightsstatements.org/vocab/InC/1.0/). You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights-holder(s). | |
| thesis.degree.discipline | Biochemistry and Molecular Biology | |
| thesis.degree.grantor | Colorado State University | |
| thesis.degree.level | Doctoral | |
| thesis.degree.name | Doctor of Philosophy (Ph.D.) |
Files
Original bundle
1 - 1 of 1
Loading...
- Name:
- ETDF_Toombs_2009_3385182.pdf
- Size:
- 1.87 MB
- Format:
- Adobe Portable Document Format