GSBS Student Publications
Title
Translational control of the embryonic cell cycle
GSBS Program
Biochemistry & Molecular Pharmacology
Publication Date
2002-06-28
UMMS Affiliation
Graduate School of Biomedical Sciences; Program in Molecular Medicine
Document Type
Article
Disciplines
Life Sciences | Medicine and Health Sciences
Abstract
The synthesis and destruction of cyclin B drives mitosis in eukaryotic cells. Cell cycle progression is also regulated at the level of cyclin B translation. In cycling extracts from Xenopus embryos, progression into M phase requires the polyadenylation-induced translation of cyclin B1 mRNA. Polyadenylation is mediated by the phosphorylation of CPEB by Aurora, a kinase whose activity oscillates with the cell cycle. Exit from M phase seems to require deadenylation and subsequent translational silencing of cyclin B1 mRNA by Maskin, a CPEB and eIF4E binding factor, whose expression is cell cycle regulated. These observations suggest that regulated cyclin B1 mRNA translation is essential for the embryonic cell cycle. Mammalian cells also display a cell cycle-dependent cytoplasmic polyadenylation, suggesting that translational control by polyadenylation might be a general feature of mitosis in animal cells.
Source
Cell. 2002 May 17;109(4):473-83.
Journal/Book/Conference Title
Cell
Related Resources
PubMed ID
12086604
Repository Citation
Groisman, Irina; Jung, Mi-Young; Sarkissian, Madathia; Cao, Quiping; and Richter, Joel D., "Translational control of the embryonic cell cycle" (2002). GSBS Student Publications. 419.
https://escholarship.umassmed.edu/gsbs_sp/419