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Conformational proofreading of distant 40S ribosomal subunit maturation events by a long-range communication mechanism

Mitterer, Valentin ; Shayan, Ramtin ; Ferreira-Cerca, Sébastien ; Murat, Guillaume ; Enne, Tanja ; Rinaldi, Dana ; Weigl, Sarah ; Omanic, Hajrija ; Gleizes, Pierre-Emmanuel ; Kressler, Dieter ; Plisson-Chastang, Celia ; Pertschy, Brigitte

In: Nature Communications, 2019, vol. 10, no. 1, p. 2754

Eukaryotic ribosomes are synthesized in a hierarchical process driven by a plethora of assembly factors, but how maturation events at physically distant sites on pre- ribosomes are coordinated is poorly understood. Using functional analyses and cryo- EM, we show that ribosomal protein Rps20 orchestrates communication between two multi-step maturation events across the pre-40S subunit. Our...