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Translational control by CPEB: a means to the end.
1Department of Molecular Genetics and Microbiology, University of Massachusetts Medical School, Worcester, Massachusetts 01655, USA.
Nature Reviews. Molecular Cell Biology
|July 4, 2001
Summary
Regulated messenger RNA translation is vital for cell functions. Cytoplasmic polyadenylation element-binding proteins (CPEBs) control this process by binding RNA elements, affecting translation and localization.
Area of Science:
- Molecular Biology
- Developmental Biology
- Neuroscience
Background:
- Regulated mRNA translation is crucial for fundamental biological processes.
- Cytoplasmic polyadenylation is a key mechanism controlling gene expression post-transcriptionally.
- Cytoplasmic polyadenylation element-binding proteins (CPEBs) are central regulators of this process.
Purpose of the Study:
- To elucidate the diverse features and functions of CPEB proteins.
- To understand the role of CPEB in mRNA translation regulation.
- To explore CPEB's involvement in cellular activities and development.
Main Methods:
- Analysis of CPEB's RNA-binding specificity.
- Investigating CPEB's role in translational repression.
- Studying CPEB's impact on mRNA localization.
Main Results:
- CPEB proteins are highly conserved, sequence-specific RNA-binding proteins.
- CPEB binding to the cytoplasmic polyadenylation element modulates translation.
- CPEB influences both translational repression and mRNA localization.
Conclusions:
- CPEB is a multifaceted protein essential for regulating mRNA translation.
- CPEB plays a critical role in cell-cycle progression, embryonic development, and neural functions.
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