| Literature DB >> 18691600 |
Jonathan A R Worrall1, Maria Górna, Nicholas T Crump, Lara G Phillips, Alex C Tuck, Amanda J Price, Vassiliy N Bavro, Ben F Luisi.
Abstract
The Escherichia coli RNA degradosome is a multienzyme assembly that functions in transcript turnover and maturation of structured RNA precursors. We have developed a procedure to reconstitute the RNA degradosome from recombinant components using modular coexpression vectors. The reconstituted assembly can be purified on a scale that has enabled biochemical and biophysical analyses, and we compare the properties of recombinant and cell-extracted RNA degradosomes. We present evidence that auxiliary protein components can be recruited to the 'superprotomer' core of the assembly through a dynamic equilibrium involving RNA intermediaries. We discuss the implications for the regulation of RNA degradosome function in vivo.Entities:
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Year: 2008 PMID: 18691600 PMCID: PMC7611026 DOI: 10.1016/j.jmb.2008.07.059
Source DB: PubMed Journal: J Mol Biol ISSN: 0022-2836 Impact factor: 5.469