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Articles 1 - 6 of 6
Full-Text Articles in Medicine and Health Sciences
A Biochemical Characterization Of The Fusion Proteins From Enveloped Rna Viruses, Chelsea T. Barrett
A Biochemical Characterization Of The Fusion Proteins From Enveloped Rna Viruses, Chelsea T. Barrett
Theses and Dissertations--Molecular and Cellular Biochemistry
Enveloped viruses must bind target cells and then fuse the viral membrane with a cell membrane to enter a host cell. These viruses use one or more surface glycoproteins to carry out these critical functions. The surface glycoprotein that carries out the fusion function, termed a fusion protein, is divided into three classes based on structural similarities. Some of the most studied human viral pathogens, such as human immunodeficiency virus (HIV), Ebola virus, influenza, measles, and the recently emerged severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), possess class I fusion proteins. Following synthesis, class I fusion proteins associate as non-covalently …
Pre-Clinical Advancements In Biomarkers, Tools, And Therapeutics For A Metabolic Neurodegenerative Disease, Zoë Simmons
Pre-Clinical Advancements In Biomarkers, Tools, And Therapeutics For A Metabolic Neurodegenerative Disease, Zoë Simmons
Theses and Dissertations--Molecular and Cellular Biochemistry
Glycogen is the storage form of glucose and a highly important substrate for cellular metabolism. Characterization of the enzymes and mechanisms of glycogen metabolism began over 70 years ago and over the last 20 years, a previously unknown protein called laforin has emerged as an important contributor to glycogen metabolism homeostasis. Multiple labs demonstrated that laforin is a glycogen phosphatase and mutations in the gene encoding laforin cause the formation of aberrant glycogen-like aggregates called Lafora bodies (LBs). LBs are cytoplasmic, water-insoluble aggregates that drive neurodegeneration and early death in Lafora disease (LD) patients. The direct relationship between mutated laforin, …
Therapeutic Targeting Of Leukemia Stem Cells To Prevent T-Cell Acute Lymphoblastic Leukemia Relapse, Meghan G. Haney
Therapeutic Targeting Of Leukemia Stem Cells To Prevent T-Cell Acute Lymphoblastic Leukemia Relapse, Meghan G. Haney
Theses and Dissertations--Molecular and Cellular Biochemistry
The survival rate of T-cell Acute Lymphoblastic Leukemia (T-ALL) relapse is a dismal 10% of affected adults and 30% of children, largely due to the relapsed disease being more aggressive and treatment resistant than the initial disease. Relapse is thought to occur because conventional chemotherapies are unable to reliably eliminate a unique cell type known as leukemia stem (or propagating) cells (LSCs). LSCs are the only cells within the leukemia with the ability to self-renew and remake or replenish the ALL from a single cell. Currently, the pathways governing self-renewal in LSCs are largely unknown, precluding our ability to successfully …
Reversible Glucan Phosphorylation In The Red Alga, Cyanidioschyzon Merolae, Corey Owen Brizzee
Reversible Glucan Phosphorylation In The Red Alga, Cyanidioschyzon Merolae, Corey Owen Brizzee
Theses and Dissertations--Molecular and Cellular Biochemistry
Starch and glycogen are an essential component for the majority of species and have been developed to maintain homeostasis in response to environmental changes. Water-soluble glycogen is an excellent source of quick, short-term energy in response to energy demands. In contrast, plants and algae have developed the macromolecule starch that is elegantly suitable for their dependence on external circumstances. Semi-crystalline starch is water-insoluble and inaccessible to most amylolytic enzymes, thus plants and algae have developed a coordinated system so that these enzymes can gain access to the denser starch energy cache. Starch-like semi-crystalline polysaccharides are also found in red algae, …
Cloning And Functional Characterizations Of Circular Rnas From The Human Mapt Locus, Justin R. Welden
Cloning And Functional Characterizations Of Circular Rnas From The Human Mapt Locus, Justin R. Welden
Theses and Dissertations--Molecular and Cellular Biochemistry
Under pathophysiological conditions, the microtubule protein tau (MAPT) forms neurofibrillary tangles that are the hallmark of sporadic Alzheimer’s disease as well as familial frontotemporal dementias linked to chromosome 17 (FTDP-17). In this work, I report that MAPT forms circular RNAs through backsplicing of exon 12 to either exon 10 or exon 7 (12→10; 12→7), and that these circular RNAs are translated into proteins.
Using stable cell lines overexpressing the circular tau RNAs 12→7 and 12→10, we have discovered that the tau circular RNA 12→7 is translated in a rolling circle, giving rise to multiple proteins. This circular RNA …
Entry And Early Infection Of Non-Segmented Negative Sense Rna Viruses, Jean Mawuena Branttie
Entry And Early Infection Of Non-Segmented Negative Sense Rna Viruses, Jean Mawuena Branttie
Theses and Dissertations--Molecular and Cellular Biochemistry
Paramyxoviruses, pneumoviruses, and other non-segmented negative sense (NNS) RNA viruses have historically been of public health concern. Although their genomes are typically small (up to 19kbs) they are able to inflict large-scale detrimental pathologies on host cells. Human metapneumovirus (HMPV) is a widespread pathogen and is a NNS RNA virus. HMPV results respiratory tract infections and is particularly dangerous for preterm infants, the elderly, and immunocompromised individuals. Other viruses within the NNS RNA virus order include the deadly Ebola, Hendra, and Nipah viruses (EBOV, HeV, and NiV), as well as the re-emerging measles virus (MeV). Despite their public impact, there …