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Full-Text Articles in Life Sciences

Group Ii Intron Dynamics In Heterologous Hosts, Venkata Raghavendra Aditya Chalamcharla Jan 2010

Group Ii Intron Dynamics In Heterologous Hosts, Venkata Raghavendra Aditya Chalamcharla

Legacy Theses & Dissertations (2009 - 2024)

Group II introns are ribozymes with an innate ability to self-splice. They are found predominantly in bacterial and bacterial-derived organellar genomes, but not in the nuclear genomes of eukaryotes. In bacteria, group II introns often behave as mobile retroelements, invading host DNA and exploiting its machinery to complete the retromobility process. The object of my studies is the group II intron found in the Lactococcus lactis relaxase gene. To determine the nature of the group II intron-host relationship, we performed a genetic screen and identified several host factors that affect group II intron retromobility in Escherichia coli, which provides a …


Stratifin Is Redundant In Cell Cycle Regulation But Essential For The Translational Control During Skin Development, Fang Liu Jan 2010

Stratifin Is Redundant In Cell Cycle Regulation But Essential For The Translational Control During Skin Development, Fang Liu

Legacy Theses & Dissertations (2009 - 2024)

Three phenotypically similar mouse mutations that cause severe defects in skin terminal differentiation have been identified in stratifin (Sfn, also known as 14-3-3σ), I-Kappa Kinase alpha (IKKα) and Interleukin regulatory factor 6 (Irf6). IKKα and Irf6 have been proposed to regulate skin differentiation at the level of transcription. Sfn has been studied intensively as a negative cell cycle regulator during DNA damage response; however, its role in skin development has not been fully characterized.