RRC ID 59003
Author Umekawa M, Shiraishi D, Fuwa M, Sawaguchi K, Mashima Y, Katayama T, Karita S.
Title Mitotic cyclin Clb4 is required for the intracellular adaptation to glucose starvation in Saccharomyces cerevisiae.
Journal FEBS Lett
Abstract Cellular homeostasis in response to glucose availability is maintained through the tight coordination of various physiological processes, including cell proliferation, transcription, and metabolism. In this study, we use the budding yeast Saccharomyces cerevisiae to identify proteins implicated in carbon source-dependent modulation of physiological processes. We find that the mitotic cyclin Clb4 is required for optimal regulation of glucose-starvation-responsive pathways through the target of rapamycin complex 1. Cells lacking Clb4 are characterized by dysregulation of autophagy and impaired modulation of cell size. Notably, cell viability after prolonged glucose starvation is severely reduced by disruption of Clb4. We conclude that Clb4, in addition to its function in the cell cycle, plays a role in the intracellular adaptation to glucose starvation.
Volume 594(8)
Pages 1329-1338
Published 2020-4-1
DOI 10.1002/1873-3468.13722
PMID 31853970
MeSH Adaptation, Biological Autophagy / physiology Cyclin B / genetics Cyclin B / metabolism* DNA-Binding Proteins / metabolism Glucose / metabolism* Saccharomyces cerevisiae / physiology* Saccharomyces cerevisiae Proteins / genetics Saccharomyces cerevisiae Proteins / metabolism* Transcription Factors / metabolism alpha-Mannosidase / genetics alpha-Mannosidase / metabolism*
IF 3.057
Times Cited 0
Resource
Yeast MATa ura3 tyr1 leu2 his7 cdc28-1