Document Type

Article

Publication Date

March 2006

Comments

This article has been peer-reviewed. It is the authors' final version prior to publication in Trends in Biochemical Sciences 31(3):143-149, March, 2006. The published version is available at http://dx.doi.org/10.1016/j.tibs.2006.01.007. Copyright is retained by Elsevier, Inc.

Abstract

Ribosome recycling, the last step in translation, is now accepted as an essential process for prokaryotes. In 2005, three laboratories showed that ribosome-recycling factor (RRF) and elongation factor G (EF-G) cause dissociation of ribosomes into subunits, solving the long-standing problem of how this essential step of translation occurs. However, there remains ongoing controversy regarding the other actions of RRF and EF-G during ribosome recycling. We propose that the available data are consistent with the notion that RRF and EF-G not only split ribosomes into subunits but also participate directly in the release of deacylated tRNA and mRNA for the next round of translation.

 
 

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