Eukaryotic Ribosomes: Assembly
Published Online: 23 SEP 2005
Copyright © 2001 John Wiley & Sons, Ltd. All rights reserved.
How to Cite
Raué, H. A. 2005. Eukaryotic Ribosomes: Assembly. eLS. .
- Published Online: 23 SEP 2005
Eukaryotic ribosomes contain one copy of each of four different RNA species and about 80 different proteins. These components are assembled into ribosomal subunits in an ordered manner as the precursor ribosomal RNA is processed into the mature form. Pre-rRNA processing and assembly takes place largely in the nucleolus with later stages occurring in the nucleoplasm and finally the cytoplasm. It requires numerous accessory factors, including a large number of small nucleolar ribonucleoprotein particles (snoRNPs).