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Full-Text Articles in Molecular Biology

The Role Of Rna Editing Within Calcium-Dependent Activator For Secretion 1 In Large Dense Core Vesicle Fusion, Kaylee M. Mathiason Dec 2020

The Role Of Rna Editing Within Calcium-Dependent Activator For Secretion 1 In Large Dense Core Vesicle Fusion, Kaylee M. Mathiason

MSU Graduate Theses

Calcium-dependent activator protein for secretion 1 (CAPS1) is involved in synaptic vesicle and large dense core vesicle fusion by bridging vesicles and the plasma membrane prior to vesicle fusion and cargo release. CAPS1 is subject to a post-transcriptional modification called RNA editing. RNA editing recodes a single amino acid in the region of the protein that interacts with the vesicle. This recoding event within CAPS1 has cellular consequences in neurons where edited CAPS1 overexpression increases basal secretion from neural synaptic vesicles. Our goal was to investigate how RNA editing within CAPS1 affects large dense core vesicle secretion in an insulinoma …


Determining A Method For Expressing And Purifying Cytochrome P450 4v2: A Protein Involved In Bietti's Crystalline Dystrophy, Cody Lane Turner Dec 2020

Determining A Method For Expressing And Purifying Cytochrome P450 4v2: A Protein Involved In Bietti's Crystalline Dystrophy, Cody Lane Turner

MSU Graduate Theses

Within the Cytochrome P450 class of enzymes, there are a group known as the “orphan” cytochromes. The “orphan” classification comes from the poorly understood in vivo functionality and substrate specificity. Cytochrome P450 4V2 (CYP4V2) is one of these “orphans” and belongs to the CYP4 family. The CYP4 family is known for the omega oxidation of endogenous fatty acids. This family is most commonly found on chromosome 1 (CYP4ABXZ). CYP4V2 is unique in that its location is bound to chromosome 4 as discovered by Jiao in 2004. Mutations within the CYP4V2 gene have been associated with the …


Investigating Chitosan Modified With Triethylammonium Butanamide And Triethylphosphonium Butanamide As Non-Viral Gene Delivery Vectors By Examining Cytotoxicity And Transfection Efficiency, Deborah C. Ehie Aug 2020

Investigating Chitosan Modified With Triethylammonium Butanamide And Triethylphosphonium Butanamide As Non-Viral Gene Delivery Vectors By Examining Cytotoxicity And Transfection Efficiency, Deborah C. Ehie

MSU Graduate Theses

Gene therapy is a very challenging field, especially with new emerging genetic disorders. Chitosan (CS), due to chitosan’s flexibility, biocompatibility, and biodegradability, has been of interest in the world of gene therapy especially as researchers are gravitating towards non-viral vectors due to the problems caused by viral vectors. Nevertheless, there are still issues regarding solubility, cellular uptake of cargos being transported in vitro or in vivo, increased cytotoxicity levels, as well as many other things that prevent chitosan from being an efficient gene delivery agent. Here I present five derivatives of chitosan, which were all modified with either triethylphosphonium …