Degradation of cytosolic ribosomes by autophagy-related pathways

被引:25
作者
Bassham, Diane C. [1 ]
MacIntosh, Gustavo C. [2 ]
机构
[1] Iowa State Univ, Dept Genet Dev & Cell Biol, Ames, IA 50011 USA
[2] Iowa State Univ, Roy J Carver Dept Biochem Biophys & Mol Biol, Ames, IA 50011 USA
基金
美国国家科学基金会;
关键词
Autophagy; Degradation; Ribosome; rFtNA; Vacuole; ENDOPLASMIC-RETICULUM STRESS; MESSENGER-RNA DECAY; ARABIDOPSIS-THALIANA; QUALITY-CONTROL; CYSTIC LEUKOENCEPHALOPATHY; SACCHAROMYCES-CEREVISIAE; SELECTIVE AUTOPHAGY; UBIQUITIN PROTEASE; PLANT-CELLS; YEAST;
D O I
10.1016/j.plantsci.2017.05.008
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
Ribosomes are essential molecular machines that require a large cellular investment, yet the mechanisms of their turnover are not well understood in any eukaryotic organism. Recent advances in Arabidopsis suggest that plants utilize selective mechanisms to transport rRNA or ribosomes to the vacuole, where rRNA is degraded and the breakdown products recycled to maintain cellular homeostasis. This review focuses on known mechanisms of rRNA turnover and explores unanswered questions on the specificity and pathways of ribosome turnover and the role of this process in maintenance of cellular homeostasis.
引用
收藏
页码:169 / 174
页数:6
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