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Articles 1 - 12 of 12
Full-Text Articles in Other Biochemistry, Biophysics, and Structural Biology
The Effects Of Tubulin Post-Translational Modifications On The Flagellar Motility Of Trypanosoma Brucei, Katherine Wentworth
The Effects Of Tubulin Post-Translational Modifications On The Flagellar Motility Of Trypanosoma Brucei, Katherine Wentworth
All Theses
Trypanosoma brucei is a parasitic kinetoplastid that causes African trypanosomiasis and is transmitted to a mammalian host by the tsetse fly (Glossina spp.). T. brucei relies on its flagellar motility to carry out its morphological changes from the procyclic form (predominant in the fly vector) to the bloodstream form (infectious form in mammals) and navigate the bloodstream of its host. The driving structure within the flagellum is the axoneme, which is composed of microtubules and dynein motor proteins. The tubulin code hypothesis suggests that cells regulate microtubule motor protein activity through post-translational modifications (PTMs) of alpha and beta …
Chemosensory Receptors In Berghia Stephanieae: Bioinformatics And Localization, Kelsi L. Watkins
Chemosensory Receptors In Berghia Stephanieae: Bioinformatics And Localization, Kelsi L. Watkins
Masters Theses
Chemosensation is achieved through the binding of chemical signals to chemoreceptor proteins embedded in the membranes of sensory neurons. The molecular identity of these receptors, as well as the downstream processing of chemosensory signals, has been well studied in arthropods and vertebrates. However, very little is known about molluscan chemosensation. The identity of chemoreceptor proteins in the nudibranch mollusc Berghia stephanieae are unknown. Data from other protostome and molluscan studies suggest Berghia may use ionotropic receptors for some forms of chemoreception. This study used a bioinformatics approach to identify potential chemosensory ionotropic receptors in the transcriptome of Berghia. A …
Hsp- 70 Mediated Nervous System Enhancement By Etas, Taylor Carter
Hsp- 70 Mediated Nervous System Enhancement By Etas, Taylor Carter
Theses (2016-Present)
Neurodegenerative disease in the CNS is usually a product of increased oxidative stress in the brain. In this study we tested the ability of an asparagus supplement ETAS to help reduce oxidative stress in the normal brains of Balb C mice. Oxidative stress pathways (Heat shock proteins) are usually cumulative in the damage they cause when disrupted. We treated normal Balb C mice with ETAS and had control groups with no ETAS supplementation in their regular diet. We then sacrificed the mice and conducted microarray studies to compare oxidative stress pathway genes. We also characterized the effects of regular oxidative …
Modulation Of Kras Structure And Dynamics By Kras Ubiquitination And Membrane Depolarization, Vinay Nair
Modulation Of Kras Structure And Dynamics By Kras Ubiquitination And Membrane Depolarization, Vinay Nair
Dissertations & Theses (Open Access)
KRAS, a 21 kDa small GTPase protein, functions as a molecular switch playing a key role in regulating cell proliferation. Dysregulation of KRAS signaling by oncogenic mutations leads to uncontrolled cell proliferation, a hallmark of cancer cells. Attempts to therapeutically target oncogenic KRAS have led to limited success resulting in a need to identify new mechanisms to targeting KRAS. The interaction of KRAS with its regulators, effectors, and the membrane present one such avenue. In this study, we investigated how post-translational covalent and environmental modifications could modulate these interactions of KRAS. Using computational molecular dynamics simulations, nuclear magnetic resonance spectroscopy …
The Structural And Functional Role Of Photosensing In Rgs-Lov Proteins, Zaynab Jaber
The Structural And Functional Role Of Photosensing In Rgs-Lov Proteins, Zaynab Jaber
Dissertations, Theses, and Capstone Projects
Light provides organisms with energy and spatiotemporal information. To survive and adapt, organisms have developed the ability to sense light to drive biochemical effects that underlie vision, entrainment of circadian rhythm, stress response, virulence, and many other important molecularly driven responses. Blue-light sensing Light-Oxygen-Voltage (LOV) domains are ubiquitous across multiple kingdoms of life and modulate various physiological events via diverse effector domains. Using a small molecule flavin chromophore, the LOV domain undergoes light-dependent structural changes leading to activation or repression of these catalytic and non-catalytic effectors. In silico analyses of high-throughput genomic sequencing data has led to the marked expansion …
Inquiry Into Perilipin-5a Expression In Triacylglycerol Rich Vs Normal Fed Mouse Tissue, Kobi Agyepong
Inquiry Into Perilipin-5a Expression In Triacylglycerol Rich Vs Normal Fed Mouse Tissue, Kobi Agyepong
Undergraduate Honors Thesis Projects
The steep rise in both childhood and adult obesity over the past three decades has moved to the forefront of public consciousness in recent years. This development has generated a marked increase in general health awareness and lifestyle changes for a vast number of individuals, most notably in the form of increased physical activity and diet alterations. The latter point is especially salient in a biochemical context, because of the myriad factors that can result in “fat accumulation”. Chief among these factors is the Perilipin 5A gene, (known as PLIN5A) which encodes the protein Perilipin 5A of the Perilipin family …
Expression Of Glycine-Rich Proteins Found In Salivary Glands Of The Lone Star Tick (Amblyomma Americanum) Using A Mammalian Cell Line, Annabelle Clark
Expression Of Glycine-Rich Proteins Found In Salivary Glands Of The Lone Star Tick (Amblyomma Americanum) Using A Mammalian Cell Line, Annabelle Clark
Honors Theses
Ticks play an important ecological role as well as a growing role in human health and veterinary care. Ticks are hosts to a plethora of microbial pathogens that can be transferred during feeding to cause tick-borne diseases in humans and many animals. Ticks may in large part owe the success of the transfer of these pathogens between hosts to their complex saliva. The saliva secreted upon a tick’s attachment to a host serves the following, among other, functions: anti-hemostasis of the blood pool, preventing an inflammatory response at the bite site, and serving as a natural anti-microbial substance. An important …
Promoting Extracellular Matrix Crosslinking In Synthetic Hydrogels, Marcos M. Manganare
Promoting Extracellular Matrix Crosslinking In Synthetic Hydrogels, Marcos M. Manganare
Masters Theses
The extracellular matrix (ECM) provides mechanical and biochemical support to tissues and cells. It is crucial for cell attachment, differentiation, and migration, as well as for ailment-associated processes such as angiogenesis, metastases and cancer development. An approach to study these phenomena is through emulation of the ECM by synthetic gels constructed of natural polymers, such as collagen and fibronectin, or simple but tunable materials such as poly(ethylene glycol) (PEG) crosslinked with short peptide sequences susceptible to digestion by metalloproteases and cell-binding domains. Our lab uses PEG gels to study cell behavior in three dimensions (3D). Although this system fosters cell …
Fishing For A Sustainable Future: Aquaponics As A Method Of Food Production, Richard Ramsundar
Fishing For A Sustainable Future: Aquaponics As A Method Of Food Production, Richard Ramsundar
Student Theses 2015-Present
This thesis compares and explains the advantages aquaponics farming has over modern industrial intensive farming. Through a comparison natural capital usage, conservation, recycling and cost, the thesis advocates for the expansion of aquaponics usage in urban settings. The thesis also explains the history of intensive farming and aquaponics in America, the science of how aquaponics operates, the economic and environmental costs of modern intensive farming versus aquaponics farming, and the social implications of aquaponics. Lastly, I propose a policy that reallocates farm subsidies by modifying the Farm Bill. Then I propose policies that support creating a new standard of farm …
Shifting The Stress Curve: Using "Stress Inoculation" And Exercise To Promote Resilience, Mikyung Kim
Shifting The Stress Curve: Using "Stress Inoculation" And Exercise To Promote Resilience, Mikyung Kim
Master's Theses
Problem
Stress influences an organism’s physiological systems via an inverted u-shaped curve: An optimum amount of stress will optimize body functions, but too little stress or too much stress for long periods of time can impair body functions. Researchers have been very interested in exploring the mechanisms that may “delay the tipping point” between the positive and negative effects of stress. A rightward shift in the stress curve would allow one to maintain optimal performance even at higher or more prolonged stress levels. The molecular and cellular mechanisms that underlie this rightward shift could result in resilience, clinically defined as …
Dissecting The Interaction Between P53 And Trim24, Aundrietta D. Duncan
Dissecting The Interaction Between P53 And Trim24, Aundrietta D. Duncan
Dissertations & Theses (Open Access)
Dissecting the Interaction of p53 and TRIM24
Aundrietta DeVan Duncan
Supervisory Professor, Michelle Barton, Ph.D.
p53, the “guardian of the genome”, plays an important role in multiple biological processes including cell cycle, angiogenesis, DNA repair and apoptosis. Because it is mutated in over 50% of cancers, p53 has been widely studied in established cancer cell lines. However, little is known about the function of p53 in a normal cell. We focused on characterizing p53 in normal cells and during differentiation. Our lab recently identified a novel binding partner of p53, Tripartite Motif 24 protein (TRIM24). TRIM24 is a member of …
Regulation Of The Expression Of Hmn-Sod At The Level Of The Mitochondrial Processing Of Precursor Hmn-Sod, Gary Leslie Wright
Regulation Of The Expression Of Hmn-Sod At The Level Of The Mitochondrial Processing Of Precursor Hmn-Sod, Gary Leslie Wright
Theses, Dissertations and Capstones
The mitochondrion imports and processes the vast majority of the proteins which comprise its structural elements and metabolic pathways. Studies in the last decade have been successful at defining the mechanism and protein machinery responsible for recognizing, importing, and processing cytosolic precursor proteins into the mature mitochondrial proteins. Little is known, however, about physiological factors which might influence or compromise mitochondrial protein processing. The objective of this work was to develop a novel approach to study mitochondrial import and assembly of precursor proteins as a process within the context of the cellular environment. To these ends we employed the baculovirus …