Akabane virus reprograms the PKR‑eIF2α‑SGs/PBs axis to fine-tune cap-snatching efficiency.

AKAV reprograms host mRNA granules and translation machinery to enhance its cap-snatching efficiency, with PKR-eIF2α signaling playing a central role.

• Why it matters: Understanding how AKAV manipulates host cell structures to facilitate its replication can reveal targets for antiviral strategies and deepen knowledge of virus-host interactions.
• What they did: The study used molecular and cellular approaches to show that AKAV infection activates PKR-eIF2α signaling, disassembles polysomes, stress granules, and processing bodies, and that mutations in viral N protein disrupt these processes.
• The result: Disassembly of host mRNA granules and translation complexes by AKAV promotes viral cap-snatching and replication, suggesting that manipulating these host structures could influence viral infectivity.