NDLI: Transcriptional regulation in yeast during diauxic shift and stationary phase.

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Transcriptional regulation in yeast during diauxic shift and stationary phase.

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	Galdieri, Luciano Mehrotra, Swati Yu, Sean Vancura, Ales
Description	Country affiliation: United States Author Affiliation: Galdieri L ( Department of Biological Sciences, St. John's University, Queens, New York, USA.)
Abstract	The preferred source of carbon and energy for yeast cells is glucose. When yeast cells are grown in liquid cultures, they metabolize glucose predominantly by glycolysis, releasing ethanol in the medium. When glucose becomes limiting, the cells enter diauxic shift characterized by decreased growth rate and by switching metabolism from glycolysis to aerobic utilization of ethanol. When ethanol is depleted from the medium, cells enter quiescent or stationary phase G(0). Cells in diauxic shift and stationary phase are stressed by the lack of nutrients and by accumulation of toxic metabolites, primarily from the oxidative metabolism, and are differentiated in ways that allow them to maintain viability for extended periods of time. The transition of yeast cells from exponential phase to quiescence is regulated by protein kinase A, TOR, Snf1p, and Rim15p pathways that signal changes in availability of nutrients, converge on transcriptional factors Msn2p, Msn4p, and Gis1p, and elicit extensive reprogramming of the transcription machinery. However, the events in transcriptional regulation during diauxic shift and quiescence are incompletely understood. Because cells from multicellular eukaryotic organisms spend most of their life in G(0) phase, understanding transcriptional regulation in quiescence will inform other fields, such as cancer, development, and aging.
File Format	HTM / HTML
ISSN	15362310
e-ISSN	15578100
DOI	10.1089/omi.2010.0069
Journal	OMICS: A Journal of Integrative Biology
Issue Number	6
Volume Number	14
Language	English
Publisher	Mary Ann Liebert, Inc.
Publisher Date	2010-12-01
Publisher Place	United States
Access Restriction	Open
Subject Keyword	Discipline Molecular Biology Discipline Computational Biology Gene Expression Regulation, Fungal Saccharomyces Cerevisiae Proteins Metabolism Saccharomyces Cerevisiae Ethanol Genetics Physiology Glucose Research Support, N.i.h., Extramural
Content Type	Text
Resource Type	Article
Subject	Genetics Medicine Molecular Biology Biochemistry Molecular Medicine Biotechnology

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