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Articles 1 - 3 of 3
Full-Text Articles in Biochemistry, Biophysics, and Structural Biology
A Molecular Toolset For The In Vivo Detection Of A Sulfolobus Islandicus Leucyl Trna Synthetase Paralog, Nicholas Michael Bretz
A Molecular Toolset For The In Vivo Detection Of A Sulfolobus Islandicus Leucyl Trna Synthetase Paralog, Nicholas Michael Bretz
Theses and Dissertations
An ancient and ubiquitous set of enzymes known as the aminoacyl-tRNA synthetases are required for the viability of all organisms. The aminoacyl-tRNA synthetases catalyze the attachment of amino acids onto tRNA molecules. The aminoacylated, or charged, tRNA is then transported and utilized at the ribosome for the synthesis of proteins. The genome of the hyperthermophilic microorganism Sulfolobus islandicus (S. islandicus) harbors a unique leucyl-tRNA synthetase paralog, LeuRS-I, of unknown function. While its duplicate, LeuRS-F, carries out all the classical functions of LeuRS-family enzymes, LeuRS-I fails to charge leucine onto tRNALeu, despite its ability to activate this amino acid and bind …
Gene Regulatory Mechanisms Driving Temporal Dynamics Of Lineage Specific Differentiation In The Cranial Neural Crest, Maria R. Replogle
Gene Regulatory Mechanisms Driving Temporal Dynamics Of Lineage Specific Differentiation In The Cranial Neural Crest, Maria R. Replogle
Theses and Dissertations
Genetic and environmental perturbations impacting neural crest (NC) development can result in pleiotropic structural and functional birth defects, many of which are associated with pediatric syndromes. As developmental precursors, the NC has the unique capacity to give rise to a diverse array of ectodermal and mesoectodermal cell types, from neurons and glia of the peripheral nervous system to the cartilage and bone of the face. In order to transition from a multipotent progenitor to a specific cell type, NC cells must undergo a series of dynamic morphological and behavioral transformations that gradually unfold over time. However, the NC is rare …
The Impact Of Aging And Mechanical Injury On Alveolar Epithelial And Macrophage Responses In Acute Lung Injury And Inflammation, Michael S. Valentine
The Impact Of Aging And Mechanical Injury On Alveolar Epithelial And Macrophage Responses In Acute Lung Injury And Inflammation, Michael S. Valentine
Theses and Dissertations
Patients with severe lung pathologies, such as Acute Respiratory Distress Syndrome (ARDS), often require mechanical ventilation as a clinical intervention; however, this procedure frequently exacerbates the original pulmonary issue and produces an exaggerated inflammatory response that potentially leads to sepsis, multisystem organ failure, and mortality. This acute lung injury (ALI) condition has been termed Ventilator-Induced Lung Injury (VILI). Alveolar overdistension, cyclic atelectasis, and biotrauma are the primary injury mechanisms in VILI that lead to the loss of alveolar barrier integrity and pulmonary inflammation. Stress and strains during mechanical ventilation are believed to initiate alveolar epithelial mechanotransduction signaling mechanisms that contribute …