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Articles 1 - 9 of 9
Full-Text Articles in Molecular Biology
Development Of Novel Subunit Vaccine Against H5n1 Influenza, Lu Zhang
Development Of Novel Subunit Vaccine Against H5n1 Influenza, Lu Zhang
Graduate Theses and Dissertations
Influenza is a common infectious disease resulting from a frequently mutated RNA virus. Vaccination is currently the most effective method to prevent people from seasonal or pandemic influenza. The production of traditional egg-based influenza vaccine is time-consuming and provides limited effect against new strains. Therefore, it is necessary to develop a rapid method to produce influenza vaccines. We proposed a novel influenza vaccine based on the E.coli expression system. Hemagglutinin (HA) is the major target surface protein of influenza virus for vaccine development. In this study, we sub-cloned the HAs encoding gene into an E. coli expression vector; the signal …
Molecular And Biochemical Mechanisms Of Pathogenesis In The Maize Foliar Pathogen Cercospora Zeae-Maydis, Winfred-Peck Dorleku
Molecular And Biochemical Mechanisms Of Pathogenesis In The Maize Foliar Pathogen Cercospora Zeae-Maydis, Winfred-Peck Dorleku
Graduate Theses and Dissertations
GLS is a serious foliar disease of maize, a major staple crop grown commercially in the USA for both human and animal feed production, and increasingly, for ethanol production. The disease is caused by two Cercospora species, C. zeae-maydis and C. zeina, both of which infect maize in the USA and in other parts of the world, with yield losses potentially greater than 50%, depending on local conditions. In culture, C. zeae-maydis produces a phytotoxic, host non-specific perylenequinone, cercosporin, and abscisic acid (ABA), for which there is no known pathological or physiological function in the fungus. Experimental evidence indicates …
The Role Of Histone H3 And H4 In Centromere Function And Genome Integrity, Payel Chaudhuri
The Role Of Histone H3 And H4 In Centromere Function And Genome Integrity, Payel Chaudhuri
Graduate Theses and Dissertations
Histone H2A plays an important role in chromosomal segregation among parent and daughter cells during mitosis. While it is established that this histone is important in maintaining chromosome number in cell, further work is carried out to explore the role of other histones like H3 and H4 for similar effects. A systematic study is initiated by screening a library based on mutation of different amino acid residues in these histones. This detailed screening identified specific regions within H3 and H4, which are critically important for centromeric function. These histones residing near the DNA entry/exit region of nucleosome effects the functionality …
The Development Of An In Vivo Microdialysis Collection Method Of Cytokines From Brain Tissue, Anthony W. Herbaugh
The Development Of An In Vivo Microdialysis Collection Method Of Cytokines From Brain Tissue, Anthony W. Herbaugh
Graduate Theses and Dissertations
In this thesis, different methods to improve the microdialysis collection procedure for cytokines from brain tissue are presented. The first method was based on stopped flow and results indicating that no significant difference in relative recovery between stopped flow and continuous flow are shown. The second method is an antibody bead-based enhancement method. With the antibody bead-based method, a 3.5 fold increase in the collected concentrations of Chemokine (C-C motif) Ligand 2 (CCL2) were observed. However, there was no significant increase in the in vivo collection efficiency of Interleukin-6 (IL-6) using the antibody enhancement. Finally the development of an in-house …
Proteomic And Biochemical Studies Of Estrogen-Mediated Signaling And Novel Estrogen Receptor-Interacting Proteins In Breast Cancer Cells, Zhenqi Zhou
Graduate Theses and Dissertations
Estrogen plays essential roles in the growth, development, and homeostasis of a number of tissues, and can also be linked to the growth of breast cancer. The biological activities of estrogen are mediated by estrogen receptors (ERs) ERá and ERâ, and also orphan G-protein-coupled receptor 30 (GPR30). In order to identify novel proteins that are involved in ER-mediated actions of estrogen, we used mass spectrometry-based quantitative proteomic methods to systematically profile global protein expression in responses to E2 (17â-estradiol) stimulation in human breast cancer cell, and identify and characterize cellular novel proteins that are associated with ERs in breast cancer …
Design, Development, And Characterization Of Novel Antimicrobial Peptides For Pharmaceutical Applications, Yazan H. Akkam
Design, Development, And Characterization Of Novel Antimicrobial Peptides For Pharmaceutical Applications, Yazan H. Akkam
Graduate Theses and Dissertations
Candida species are the fourth leading cause of nosocomial infection. The increased incidence of drug-resistant Candida species has emphasized the need for new antifungal drugs. Histatin 5 is a naturally occurring human salivary antifungal peptide and the first line of defense against infections of the oral cavity. This research has focused on understanding the activity of histatin 5, and subsequently designing novel peptides that may serve as models for the further development of therapeutics to treat fungal infection.
This objective has been achieved in three steps: studying the structural requirement of histatin 5 involved in antifungal activity, the identification of …
Dynamics And Model Of The Pore-Forming Protein Lysenin, Eric Krueger
Dynamics And Model Of The Pore-Forming Protein Lysenin, Eric Krueger
Graduate Theses and Dissertations
Membrane transporters are a class of membrane proteins that function to provide a pathway across a cell membrane for the movement of ions and biomolecules. Investigations into the regulatory mechanism of these systems are hindered by their extensive preparation requirements compounded by their fragility and instability. However, lysenin, a pore-forming protein extracted from the earthworm Eisenia foetida, provided a unique opportunity to study a protein which is stable in both a soluble and membrane phase. Lysenin channels possess several important properties characteristic of ion channels without the inherent difficulties that plague investigations with biologically vital membrane transporters like voltage-gated ion …
Molecular Diagnosis Of Metabolic Fast Growth Related Diseases In Broiler, Adnan Ali Khalaf Al-Rubaye
Molecular Diagnosis Of Metabolic Fast Growth Related Diseases In Broiler, Adnan Ali Khalaf Al-Rubaye
Graduate Theses and Dissertations
Pulmonary Hypertension Syndrome (PHS) and lameness are important metabolic diseases that affect rapidly growing broilers. The research reported in the first section of this dissertation focused on developing qPCR assays to identify differences in the expression levels of four candidate genes possibly associated with PHS: angiotensin II type 1 receptor (AGTR1): urotensin receptor 2D (UTS2D); serotonin receptor/transporter type 2Bn (HTR2B); and angiotensinogen cleaving enzyme (ACE). Expression levels of these candidate genes were examined in four different tissues. We established ribosomal protein S14 (RPS14) and RNA polymerase subunit 2B (RP2B) as suitable reference genes because they showed the most consistent deltaCt …
Bio-Separation Process Improvement Via Genomic Manipulation: Development Of Novel Strains For Use In Immobilized Metal Affinity Chromatography (Imac), Ryan Curtis Haley
Bio-Separation Process Improvement Via Genomic Manipulation: Development Of Novel Strains For Use In Immobilized Metal Affinity Chromatography (Imac), Ryan Curtis Haley
Graduate Theses and Dissertations
The dissertation is comprised of three parts. Part I describes proteomic analysis of native bacterial proteins from Escherichia coli (E.coli) that bind during Immobilized Metal Affinity Chromatography (IMAC). Part II describes the value in exploiting proteome based data as a tool toward the design an E. coli expression strain that is particularly useful when Immobilized Metal Affinity Chromatography is employed as the initial capture step of a homologous protein purification process. Part III describes a methodology of chromosomal mapping of all contaminant gene products.
The objective of Part I was to identify all E. coli proteins that bind to Co(II), …