Influence of Protein Environment on Tryptophan Fluorescence

ResearchWorks/Manakin Repository

Search ResearchWorks


Advanced Search

Browse

My Account

Statistics

Related Information

Influence of Protein Environment on Tryptophan Fluorescence

Show full item record

Title: Influence of Protein Environment on Tryptophan Fluorescence
Author: McMillan, Andrew William
Abstract: Tryptophan fluorescence is often used as a probe of protein structure. One example of this involved the study how a mutation in catechol O-methyltrasferase produces a less stable protein. Other examples of the use of tryptophan and what factors influence variations in emission energy and quantum yield are discussed. Further investigation of these factors was carried out using two simple peptide systems, followed by mixed molecular dynamics/quantum mechanics simulations to calculate the energetics of quenching by electron transfer. These simulations used a simple quantum model that allowed tight coupling between classical and quantum calculations. It also incorporates potentials from induced dipoles. These simulations resulted in a correlation of quantum yield and charge-transfer energies. Interactions between the charge acceptor and protein stabilized charge in one system, while the other was stabilized by interactions between water and both the charge donor and acceptor.
Description: Thesis (Ph.D.)--University of Washington, 2012
URI: http://hdl.handle.net/1773/20661
Author requested restriction: No embargo

Files in this item

Files Size Format View
McMillan_washington_0250E_10419.pdf 2.569Mb PDF View/Open

This item appears in the following Collection(s)

Show full item record