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Articles 1 - 7 of 7
Full-Text Articles in Life Sciences
Vps54 Regulates Lifespan And Locomotor Behavior In Adult Drosophila Melanogaster, Emily C. Wilkinson, Emily L. Starke, Scott A. Barbee
Vps54 Regulates Lifespan And Locomotor Behavior In Adult Drosophila Melanogaster, Emily C. Wilkinson, Emily L. Starke, Scott A. Barbee
Biological Sciences: Faculty Scholarship
Vps54 is an integral subunit of the Golgi-associated retrograde protein (GARP) complex, which is involved in tethering endosome-derived vesicles to the trans-Golgi network (TGN). A destabilizing missense mutation in Vps54 causes the age-progressive motor neuron (MN) degeneration, muscle weakness, and muscle atrophy observed in the wobbler mouse, an established animal model for human MN disease. It is currently unclear how the disruption of Vps54, and thereby the GARP complex, leads to MN and muscle phenotypes. To develop a new tool to address this question, we have created an analogous model in Drosophila by generating novel loss-of-function alleles of the …
Protocols For Rearing Fall Webworm (Hyphantria Cunea) In A Colony And Basic Methods For Laboratory And Field Experiments, Maelah Robinson-Castillo, Audrey Mitchell, Amanda Fasching, Mayra C. Vidal, Mariana Abarca, Gina M. Wimp, Blyssalyn Bieber, Dhaval K. Vyas, Shannon M. Murphy
Protocols For Rearing Fall Webworm (Hyphantria Cunea) In A Colony And Basic Methods For Laboratory And Field Experiments, Maelah Robinson-Castillo, Audrey Mitchell, Amanda Fasching, Mayra C. Vidal, Mariana Abarca, Gina M. Wimp, Blyssalyn Bieber, Dhaval K. Vyas, Shannon M. Murphy
DU Undergraduate Research Journal Archive
Standardized protocols are an essential asset for research requiring the maintenance of live organisms. Ecological studies often involve collaborations between multiple teams that are spread across locations, and these collaborations benefit from sharing successful laboratory procedures. Our research team is studying the ecology of the fall webworm moth (Hyphantria cunea, hereafter FW) in North America for >10 years, during which time we have established reliable procedures for starting and maintaining FW colonies under laboratory conditions. FW is a North American species that has been introduced to Europe and Asia where it is a major pest. Here, we present a detailed …
Optimized Microbial Recombinant Production Of Hiv-1 Anti-Envelope Antibody Fragments With Applications To Single Particle Tracking Of Virus Assembly, Merissa Michelle Bruns
Optimized Microbial Recombinant Production Of Hiv-1 Anti-Envelope Antibody Fragments With Applications To Single Particle Tracking Of Virus Assembly, Merissa Michelle Bruns
Electronic Theses and Dissertations
In my findings, I have established a set series of protocols to recombinantly produce, purify and apply various fluorescent probes in vitro for the fluorescent labeling and study of the human immunodeficiency virus type 1 (HIV-1) envelope (Env) protein during HIV viral assembly. There remains insufficient knowledge about the molecular dynamics and interactions of HIV-1 Env protein with its counterpart, Gag, on the inner host cell surface during assembly of a mature virus particle. There also remains an insufficient amount of data for the understanding and clarification of the mechanism of action of a known host cell HIV-1 restriction factor, …
Understanding Patterns And Functional Impacts Of An Invasive Tree And Its Biological Control In A Riparian System, Annie L. Henry
Understanding Patterns And Functional Impacts Of An Invasive Tree And Its Biological Control In A Riparian System, Annie L. Henry
Electronic Theses and Dissertations
Invasive species have become an inextricable part of the landscape, particularly in riparian plant communities, and removal is often a key component of restoration programs. Biological control (biocontrol) is a method of removal that is often both efficient and effective. However, the impact of biocontrol on target species and indirect effects from invasive species removal can be hard to predict. While monitoring the impact of invasive species removal usually involves some species-based assessment such as changes in diversity, historically dominant species or native species, these strategies do not typically provide insight into the mechanisms underlying plant community response to removal. …
Development Of Endoplasmic Reticulum Targeted Probes And Red Fluorescent Probes For Detecting Zinc, Drew Maslar
Development Of Endoplasmic Reticulum Targeted Probes And Red Fluorescent Probes For Detecting Zinc, Drew Maslar
Electronic Theses and Dissertations
Zinc (Zn2+) is the second most abundant transition metal in the body and is important in various biological functions. Fluorescent sensors based on circularly permuted fluorescent proteins (cpFPs) have been previously made to detect labile, or unbound, Zn2+ within the cytoplasm of cells. These sensors have proven invaluable for studying Zn2+, however, these sensors are limited to their use in the cytoplasm and by the fact that only green cpFP have been utilized to create fluorescent Zn2+ sensors. In this thesis, we use a combination of peptide targeting sequences, site-directed mutagenesis, and rational design …
Notch Regulates Vascular Collagen Iv Basement Membrane Through Modulation Of Lysyl Hydroxylase 3 Trafficking, Stephen J.B. Gross
Notch Regulates Vascular Collagen Iv Basement Membrane Through Modulation Of Lysyl Hydroxylase 3 Trafficking, Stephen J.B. Gross
Electronic Theses and Dissertations
Collagen type IV (Col IV) is a basement membrane protein associated with early blood vessel morphogenesis and is essential for blood vessel stability. Defects in vascular Col IV deposition are the basis of heritable disorders, such as small vessel disease, marked by cerebral hemorrhage and drastically shorten lifespan. To date, little is known about how endothelial cells regulate the intracellular transport and selective secretion of Col IV in response to angiogenic cues, leaving a void in our understanding of this process. Our aim was to identify trafficking pathways that regulate Col IV deposition during angiogenic blood vessel development. We have …
Examining Climate Change Effects On Flowering In Moss Campion, Mykaela Tanino-Springsteen, Olivia Dewitt, Anna Sher
Examining Climate Change Effects On Flowering In Moss Campion, Mykaela Tanino-Springsteen, Olivia Dewitt, Anna Sher
DU Undergraduate Research Journal Archive
Examining the variation in the collection date of herbarium specimens is a common method for studying the phenological effects of climate change on a flowering plant species. We used herbarium data to examine how warming temperatures have affected flowering time in Silene acaulis in the state of Colorado. Silene acaulis, commonly known as moss campion and cushion pink, is an alpine tundra plant. Using ordinal date of collection as a proxy for flowering date and year collected as a proxy for increasing average temperature, a linear regression test found that there was no significant relationship between increasing temperatures and …