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Assembly Of The Peripheral Arm Subunits Of Escherichia Coli Complex I And Analysis Of Clinical Mutations, Hind Alkhaldi
Assembly Of The Peripheral Arm Subunits Of Escherichia Coli Complex I And Analysis Of Clinical Mutations, Hind Alkhaldi
Biological Sciences Theses and Dissertations
Respiratory Complex I from E. coli is a proto-type of the mitochondrial enzyme, consisting of a 6-subunit peripheral arm (B-CD-E-F-G-I) and a 7-subunit membrane arm. When subunits E-F-G (N-module), were expressed alone they formed an active complex as determined by co-immunoprecipitation and native gel electrophoresis. When co-expressed with subunits B and CD, only a complex of E-F-G was found. When these five subunits were co-expressed with subunit I and two membrane subunits, A and H, a complex of B-CD-E-F-G-I was membrane-bound, constituting the N- and Q-modules. Assembly of Complex I was also followed by splitting the genes between two plasmids, …
Investigating The Role Of Bs21 In Vancomycin-Resistant Staphylococcus Aureus, Daniel Floyd
Investigating The Role Of Bs21 In Vancomycin-Resistant Staphylococcus Aureus, Daniel Floyd
Senior Honors Projects
Staphylococcus aureus is a Gram-positive pathogenic bacterium commonly known for being the causative organism of staph infections in clinical settings. In previous literature, it has been observed that mutations in certain genes in S. aureus can result in resistance to commonly used antibiotics. Specifically, mutations in the gene rpsU, encoding the ribosomal protein bS21, have been present in strains of S. aureus resistant to the antibiotic vancomycin. The aim of my project is to validate these findings by creating a strain of S. aureus without bS21 and performing an antibiotic assay to determine the level of resistance to vancomycin …