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Full-Text Articles in Biochemistry

Detection Of Boronic Acids Through Excited-State Intramolecular Proton-Transfer Fluorescence, Matthew R. Aronoff, Brett Vanveller, Ronald T. Raines Oct 2013

Detection Of Boronic Acids Through Excited-State Intramolecular Proton-Transfer Fluorescence, Matthew R. Aronoff, Brett Vanveller, Ronald T. Raines

Brett VanVeller

Boronic acids are versatile reagents for the chemical synthesis of organic molecules. They and other boron-containing compounds can be detected readily by the interruption of the excited-state intramolecular proton transfer (ESIPT) of 10-hydroxybenzo[h]quinolone. This method is highly sensitive and selective, and useful for monitoring synthetic reactions and detecting boron-containing compounds on a solid support.


Zinc Chemical Biology: The Pursuit Of The Intracellular Targets Of Zinquin, Andrew Nowakowski Aug 2013

Zinc Chemical Biology: The Pursuit Of The Intracellular Targets Of Zinquin, Andrew Nowakowski

Theses and Dissertations

Fluorescent sensors have been a main microscopic tools used to understand Zn2+ physiology on a cellular level. The use of the fluorescent Zn2+ sensor Zinquin (ZQ) and its analogues have revealed that transient Zn2+ is a chief component in a variety of biochemical pathways. Yet, little work has been performed to validate the exact targets of Zinquin in a cellular environment. The goals of this investigation are to determine the types of Zinquin reactions that take place in the cell as well as the identities of its cellular targets.

It has been hypothesized that Zinquin reacts with free Zn2+ within …


Investigating The Metal Binding Properties Of Plasminogen Activator Inhibitor Type 1 (Pai-1) With Intrinsic Tryptophan Fluorescence, Omar M. Alsharif May 2013

Investigating The Metal Binding Properties Of Plasminogen Activator Inhibitor Type 1 (Pai-1) With Intrinsic Tryptophan Fluorescence, Omar M. Alsharif

Chancellor’s Honors Program Projects

No abstract provided.


Biophysical Characterization Of Tryptophan Locales, Mg²+ Binding And Protein Folding In Gα Subunits, Matthew Najor Jan 2013

Biophysical Characterization Of Tryptophan Locales, Mg²+ Binding And Protein Folding In Gα Subunits, Matthew Najor

Dissertations

The objective of this study is to understand the structure of guanine nucleotide - binding (G) proteins using a variety of spectroscopic tools. G proteins are membrane-bound proteins consisting of α, β, and γ subunits required for the transduction of extracellular signals to various intracellular effectors. Activation of G protein coupled receptors by neurotransmitters or hormones result in a conformational change of a G protein that is triggered by the exchange of guanosine 5'- diphosphate (GDP) bound to the  subunit for guanosine 5'- triphosphate (GTP) and concomitant dissociation of the  dimer.

Wild type (WT) Giα1 has three tryptophan …