Abstract
Several plus-strand RNA viruses encode proteins containing macrodomains. These domains possess ADP-ribose-1″-phosphatase (ADRP) activity and/or bind poly(ADP-ribose), poly(A) or poly(G). The relevance of these activities in the viral life cycle has not yet been resolved. Here, we report that genetically engineered mutants of severe acute respiratory syndrome coronavirus (SARS-CoV) and human coronavirus 229E (HCoV-229E) expressing ADRP-deficient macrodomains displayed an increased sensitivity to the antiviral effect of alpha interferon compared with their wild-type counterparts. The data suggest that macrodomain-associated ADRP activities may have a role in viral escape from the innate immune responses of the host.
Original language | English |
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Pages (from-to) | 1899-905 |
Number of pages | 7 |
Journal | Journal of General Virology |
Volume | 92 |
Issue number | Pt 8 |
DOIs | |
Publication status | Published - Aug 2011 |
Keywords
- Amino Acid Sequence
- Antiviral Agents
- Cell Line
- Coronavirus 229E, Human
- Coronavirus Infections
- Humans
- Interferon-alpha
- Molecular Sequence Data
- Phosphoric Monoester Hydrolases
- Protein Structure, Tertiary
- SARS Virus
- Sequence Alignment
- Severe Acute Respiratory Syndrome
- Viral Proteins