4.8 News Item

Some viruses need to phase-separate to replicate

Journal

EMBO JOURNAL
Volume 40, Issue 21, Pages -

Publisher

WILEY
DOI: 10.15252/embj.2021109558

Keywords

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Funding

  1. Public Health Service award [R01 AI032539]
  2. Heinz Endowments

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Researchers used a combination of in silico, in vitro, and cell-based approaches to uncover the mechanism of rotavirus factory formation, highlighting the essential roles of NSP2 and NSP5 in forming liquid-liquid phase-separated condensates.
Replication of rotavirus, an important cause of gastroenteritis in children, proceeds in large, easily discernible cytoplasmic structures, called viroplasms or viral factories, but mechanisms underlying their formation and function in infected cells have remained mysterious. In this issue, Geiger et al (2021) used a combination of in silico, in vitro, and cell-based approaches to define how two essential rotavirus nonstructural proteins, NSP2 and NSP5, form liquid-liquid phase-separated condensates as the structural foundation of rotavirus factories.

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