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Full-Text Articles in Other Biochemistry, Biophysics, and Structural Biology

Effects Of Group Ii Metal Binding On The Stability Of Dna I-Motif Structures, Charlotte Powers May 2023

Effects Of Group Ii Metal Binding On The Stability Of Dna I-Motif Structures, Charlotte Powers

Honors Theses

B-form DNA can adopt alternative structures while in superhelical duress. Alternative DNA structures are favored when there is an asymmetric distribution on complementary DNA strands. Cytosine rich strands may utilize cytosine-cytosine base pairing to form a four-stranded structure known as the i-motif (iM). The stability of iMs is affected by several factors such as DNA sequence, temperature, pH, ionic strength of the solution, and crowded conditions. While the effects of temperature, pH, and crowding conditions on iM stability have been well documented, the effects of ion presence in a solution has been less studied. Hence, those studies are the basis …


The Effects Of Largazole, A Histone Deacetylase Inhibitor, On Breast Cancer Cell Viability And Metastasis, Hannah Mccowan May 2020

The Effects Of Largazole, A Histone Deacetylase Inhibitor, On Breast Cancer Cell Viability And Metastasis, Hannah Mccowan

Honors Theses

Histone deacetylase enzymes modify epigenetic characteristics of a genome by removing acetyl groups from histone proteins in chromatin. Histone deacetylase inhibitors work by stopping this activity which can have various results in a cell including apoptosis, cell cycle arrest, differentiation, and migration. The purpose of these experiments was to see how largazole, a histone deacetylase inhibitor, affected cell viability for breast cancer and associated metastatic cell lines in both normoxic and hypoxic conditions. The experiment was completed by setting up two 96-well plates with varying concentrations of largazole and conducting a sulforhodamine viability assay. The specific cell lines used in …


A Study Of The Antioxidant Versus Pro-Oxidant Nature Of The Amyloid Beta Peptide And An Analysis Of The Natural Products, Isorhamnetin And Narignenin, As Antioxidants, Kaylee Holmes Apr 2020

A Study Of The Antioxidant Versus Pro-Oxidant Nature Of The Amyloid Beta Peptide And An Analysis Of The Natural Products, Isorhamnetin And Narignenin, As Antioxidants, Kaylee Holmes

Honors Theses

Alzheimer’s disease is a neurodegenerative disorder with no cure. Due to the widespread effects of this disease, abundant research efforts have gone towards finding a cure. The amyloid beta (Ab) peptide has been shown to be a potential cause of the disease due to destructive effects on tissues that it can have both by itself and through reactive oxygen species (ROS) generation. This study was performed in order to assess the structural properties of Ab42monomers, fibrils and oligomers, to assess the antioxidant versus pro-oxidant behavior of the Ab peptide, and to assess the antioxidant nature of the natural …