Open Access. Powered by Scholars. Published by Universities.®
- Discipline
Articles 1 - 4 of 4
Full-Text Articles in Life Sciences
Characterization Of Cellular Metabolism Regulation By The Transcription Factor Centromere Binding Factor 1 (Cbf1), Spencer Ellsworth
Characterization Of Cellular Metabolism Regulation By The Transcription Factor Centromere Binding Factor 1 (Cbf1), Spencer Ellsworth
Theses and Dissertations
Centromere binding factor 1 (Cbf1) is a transcription factor that controls the transcription of many genes involved in cellular respiration and lipid biogenesis and, as such, has been associated with hypolipidemia in humans. It is a known substrate for PAS kinase, which phosphorylates Cbf1 and alters its activity. Our hypothesis is that this phosphorylation affects the genes it regulates and the DNA motifs it binds to, perhaps due to different transcription complexes being formed. In this study, we conduct a chromatin immunoprecipitation in Saccharomyces cerevisiae to determine what genes and DNA motifs Cbf1 binds to in its wild type versus …
Characterizing The Function Of Pas Kinase In Cellular Metabolism And Neurodegenerative Disease, Jenny Adele Pape
Characterizing The Function Of Pas Kinase In Cellular Metabolism And Neurodegenerative Disease, Jenny Adele Pape
Theses and Dissertations
The second identified substrate of PAS kinase discussed is Pbp1. The human homolog of Pbp1 is ataxin-2, mutations in which are a known risk factor for amyotrophic lateral sclerosis (ALS). As diet and sex have been shown to be important factors regarding PAS kinase function, they also are strong contributing factors to ALS and are extensively reviewed herein. Pbp1 is known to be sequestered by PAS kinase under glucose depravation, and it can sequester additional proteins along with it to regulate different cellular pathways. To shed light on the pathways affected by Pbp1, we performed a yeast two-hybrid assay and …
Pas Kinase And Tor, Controllers Of Cell Growth And Proliferation, Brooke Jasmyn Cozzens
Pas Kinase And Tor, Controllers Of Cell Growth And Proliferation, Brooke Jasmyn Cozzens
Theses and Dissertations
Nutrient sensing kinases lie at the heart of cellular health and homeostasis, allowing cells to quickly adapt to changing environments. Target of Rapamycin (TOR) and PAS kinase (PASK, or PASKIN) are two such nutrient kinases, conserved from yeast to man. In yeast, these kinases each have paralogs. The two TOR paralogs in yeast mimic the mammalian TORC1 and TORC2 complexes, except both Tor1 and Tor2 may contribute to TORC1 or TORC2 function. The two PAS kinase paralogs are paired with the TOR paralogs, meaning that both Psk1 and Psk2 regulate TORC1, while Psk2 suppresses a temperature-sensitive allele of Tor2. Herein …
Identifying And Characterizing Yeast Pas Kinase 1 Substrates Reveals Regulation Of Mitochondrial And Cell Growth Pathways, Desiree Demille
Identifying And Characterizing Yeast Pas Kinase 1 Substrates Reveals Regulation Of Mitochondrial And Cell Growth Pathways, Desiree Demille
Theses and Dissertations
Glucose allocation is an important cellular process that is misregulated in the interrelated diseases obesity, diabetes and cancer. Cells have evolved critical mechanisms for regulating glucose allocation, one of which is sensory protein kinases. PAS kinase is a key sensory protein kinase that regulates glucose allocation in yeast, mice and man; and is a novel therapeutic target for the treatment of metabolic diseases such as obesity, diabetes and cancer. Despite its importance, the molecular mechanisms of PAS kinase function are largely unknown. Through large-scale protein-interaction studies, we have identified 93 novel binding partners for PAS kinase which help to expand …