Theses and Dissertations

Issuing Body

Mississippi State University

Advisor

Emerson, Joseph P.

Committee Member

Fitzkee, Nicholas C.

Committee Member

Mlsna, Debra Ann

Date of Degree

12-11-2015

Document Type

Graduate Thesis - Open Access

Major

Chemistry

Degree Name

Master of Science

College

College of Arts and Sciences

Department

Department of Chemistry

Abstract

Glutathione is one of the most abundant organic compounds found in many biological systems. It is a non-protein tripeptide of Glutamic acid, Cysteine and Glycine. Due to its stability, high cellular concentrations and structural features like gammaglutamyl linkage and sulfhydryl group, glutathione involves with many biological pathways including: cellular defense against xenobiotics and naturally occurring deleterious compounds, like free radicals, metal sequestering, and maintaining cellular sulfhydryl status. Glutathione has been broadly studied however the literature associated with Zn2+ coordination is not clear. This study is focused on collecting thermodynamic data of glutathione binding to Zn2+ metal ions using calorimetric technique. Isothermal titration calorimetry has been recommended as an excellent method to determine the association constant (K), enthalpy change (delta H), and binding stoichiometry (n) of a binding process. These parameters associated with Zn2+ binding glutathione deconvoluted from a series of complex equilibria provide an insight into what drives these reactions forward.

URI

https://hdl.handle.net/11668/19026

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