An Epstein-Barr virus-encoded snoRNA directs 2'-O-methylation of human rRNAs to control translation and the viral lytic switch.

EBV-encoded v-snoRNA1 guides 2'-O-methylation of human rRNAs at conserved sites, reducing translation and slowing cell proliferation to regulate viral latency and lytic switch.

• Why it matters: Understanding how EBV balances latency and active replication is crucial for developing targeted therapies against persistent infections and associated diseases.
• What they did: The study identified v-snoRNA1 as a guide for methylating host rRNAs, using molecular techniques to show its role in modifying ribosomal function and gene expression during infection.
• The result: V-snoRNA1-mediated methylation suppresses host protein synthesis and immune responses, facilitating viral production, and revealing a novel mechanism by which EBV manipulates host translation to promote its lifecycle.