Sno-Capped: 5′ Ends of Preribosomal RNAs Are Decorated with a U3 SnoRNP Review Article

Efficient ribosome biosynthesis is crucial for cell viability. Work recently published in Nature demonstrates that a large ribonucleoprotein processes 18S rRNA in S. cerevisiae, indicating that macromolecular particles regulate ribosome maturation and revealing the complex nature of this process.