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Curr Opin Chem Biol. 2011 Oct;15(5):657-63. doi: 10.1016/j.cbpa.2011.07.023. Epub 2011 Aug 20.

Inside the 40S ribosome assembly machinery.

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  • 1Department of Cancer Biology, The Scripps Research Institute, Jupiter, FL 33458, USA.


Ribosome assembly involves rRNA transcription, modification, folding and cleavage from precursor transcripts, and association of ribosomal proteins (Rps). In bacteria, this complex process requires only a handful of proteins in addition to those needed for rRNA transcription, modification and cleavage, while in eukaryotes a large machinery comprising ∼200 proteins in the yeast S. cerevisiae has been identified. Furthermore, while the bacterial assembly factors generally produce only cold-sensitive phenotypes upon deletion, most of the eukaryotic assembly factors are essential, comprising ∼20% of essential yeast proteins. This review explores recent rapid progress in the structural and functional dissection of the 40S assembly machinery.

Copyright © 2011 Elsevier Ltd. All rights reserved.

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