4.8 Article

Snapshots of native pre-50S ribosomes reveal a biogenesis factor network and evolutionary specialization

Journal

MOLECULAR CELL
Volume 81, Issue 6, Pages 1200-+

Publisher

CELL PRESS
DOI: 10.1016/j.molcel.2021.02.006

Keywords

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Funding

  1. Konstanz Research School Chemical Biology
  2. Human Frontier Science Program Organization (HFSP) [RPG0008/2014]
  3. Deutsche Forschungsgemeinschaft DFG [FOR1805, SFB740, SFB969, INST 335/588-1 FUGG, INST 335/589-1 FUGG, INST 335/590-1 FUGG]
  4. DFG Emmy Noether Programme [SCHW1851/1-1]
  5. European Molecular Biology Organization EMBO Advanced laboratory start-up grant [aALTF-1650]
  6. State of Berlin [INST 335/588-1 FUGG, INST 335/589-1 FUGG, INST 335/590-1 FUGG]

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Ribosome biogenesis is a complex cellular process regulated by multiple factors, with study of prokaryotic ribosome biogenesis revealing insights into the maturation process of ribosomal subunits.
Ribosome biogenesis is a fundamental multi-step cellular process that culminates in the formation of ribosomal subunits, whose production and modification are regulated by numerous biogenesis factors. In this study, we analyze physiologic prokaryotic ribosome biogenesis by isolating bona fide pre-50S subunits from an Escherichia coli strain with the biogenesis factor ObgE, affinity tagged at its native gene locus. Our integrative structural approach reveals a network of interacting biogenesis factors consisting of YjgA, RluD, RsfS, and ObgE on the immature pre-50S subunit. In addition, our study provides mechanistic insight into how the GTPase ObgE, in concert with other biogenesis factors, facilitates the maturation of the 50S functional core and reveals both conserved and divergent evolutionary features of ribosome biogenesis between prokaryotes and eukaryotes.

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