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snoRNPs: Functions in Ribosome Biogenesis.
Sandeep Ojha1, Sulochan Malla1, Shawn M Lyons1,2
1Department of Biochemistry, Boston University School of Medicine, Boston, MA 02115, USA.
Biomolecules
|May 24, 2020
Summary
Small nucleolar ribonucleoproteins (snoRNPs) are crucial for ribosome biogenesis in eukaryotes. This review details their roles in chemical modification and pre-ribosomal RNA processing, essential for protein synthesis.
Area of Science:
- Molecular Biology
- Cell Biology
- Biochemistry
Background:
- Ribosomes are essential macromolecular machines responsible for protein synthesis.
- Ribosome assembly is a complex process requiring over 200 assembly factors.
- Small nucleolar ribonucleoproteins (snoRNPs) are key players in ribosome biogenesis, localized to the nucleolus.
Purpose of the Study:
- To review the critical roles of snoRNPs in eukaryotic ribosome assembly.
- To highlight snoRNP involvement in rRNA chemical modification and pre-rRNA processing.
Main Methods:
- Literature review of scientific publications on ribosome biogenesis and snoRNPs.
- Analysis of the functions of snoRNPs in rRNA modification (pseudouridylation, 2'-O-methylation).
- Examination of snoRNP roles in guiding pre-rRNA processing pathways.
Main Results:
- snoRNPs facilitate essential chemical modifications of ribosomal RNA.
- snoRNPs guide the precise processing of precursor ribosomal RNA.
- These activities are vital for the formation of functional ribosomes.
Conclusions:
- snoRNPs are indispensable for efficient and accurate ribosome assembly in eukaryotes.
- Understanding snoRNP function provides insights into fundamental cellular processes and potential therapeutic targets.
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