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13:42
RNA Secondary Structure Prediction Using High-throughput SHAPE
Published on: May 31, 2013
Nucleolin promotes secondary structure in ribosomal RNA
Biochemical and Biophysical Research Communications
|June 14, 1991
Summary
Nucleolin impacts RNA secondary structure differently depending on the RNA type. It destabilizes synthetic RNAs but enhances ribosomal RNA structure, aiding ribosome biogenesis.
Area of Science:
- Molecular Biology
- Biochemistry
- Structural Biology
Background:
- Nucleolin is a key nucleolar protein involved in ribosome biogenesis.
- Understanding its role in RNA structural dynamics is crucial for deciphering cellular processes.
Purpose of the Study:
- To investigate the effect of nucleolin on the secondary structure of various RNA types.
- To compare nucleolin's RNA binding activity with that of protein B23.
Main Methods:
- Circular dichroism (CD) spectroscopy was employed to analyze RNA secondary structure.
- Synthetic polynucleotides (poly(G), poly(A)) and ribosomal RNA were studied.
Main Results:
- Nucleolin exhibited helix-destabilizing activity on synthetic polynucleotides (poly(G), poly(A)).
- Nucleolin enhanced the secondary structure of ribosomal RNA, indicated by CD spectral changes.
- Protein B23 demonstrated helix-destabilizing activity but lacked RNA secondary structure enhancement.
Conclusions:
- Nucleolin possesses distinct RNA structural modulation capabilities.
- Nucleolin is proposed to promote secondary structure formation in preribosomal RNA during ribosome biogenesis.
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