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Pathogenic Microbiology Commons

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Full-Text Articles in Pathogenic Microbiology

Identification And Characterization Of Functional Regulatory Variants In S. Cerevisiae, Timothy Read Jan 2015

Identification And Characterization Of Functional Regulatory Variants In S. Cerevisiae, Timothy Read

Molecular, Cellular, and Developmental Biology Graduate Theses & Dissertations

Most genetic variants associated with disease occur within regulatory regions of the genome, underscoring the need to define the mechanisms that control differences in gene expression regulation between individuals. I discovered a pair of co-regulated, divergently oriented transcripts, AQY2 and ncFRE6, that are expressed in one strain of S.cerevisiae, ∑1278b, but not in another, S288c. By combining classical genetics techniques with high-throughput sequencing, I identified a trans-acting single nucleotide polymorphism within the transcr¬iption factor RIM101 that causes the background-dependent expression of both transcripts. Subsequent RNA-seq experiments revealed that deletion of RIM101 in both backgrounds abrogated the majority of ...


Characterization Of The Interactions Between Staphylococcal Phage 80 Alpha Scaffold And Capsid Proteins, Laura Klenow Jan 2015

Characterization Of The Interactions Between Staphylococcal Phage 80 Alpha Scaffold And Capsid Proteins, Laura Klenow

Theses and Dissertations

Staphylococcal phage 80α can serve as a helper bacteriophage for a family of mobile genetic elements called Staphylococcus aureus pathogenicity islands (SaPIs). The prototype island, SaPI1, is able to hijack the 80α capsid assembly process and redirect capsid formation to yield smaller, phage-like transducing particles carrying SaPI DNA. Capsid size redirection is accomplished through two SaPI1-encoded gene products, CpmA and an alternate scaffold protein, CpmB. The normal 80α scaffold and the SaPI1 CpmB scaffold share a small block of conserved residues at their C-termini, several of which had been shown to be essential for CpmB function. This led to the ...


Letter From The Dean, Michael Vayda Jan 2015

Letter From The Dean, Michael Vayda

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

No abstract provided.