The VAI RNA of adenovirus is a small, RNA polymerase III-transcribed species required for efficient translation of host cell and viral mRNAs late after infection. The growth of a viral mutant that is unable to produce the RNA is inhibited by interferon, while wild-type virus is not affected. VAI RNA prevents activation of the interferon-induced P1 eIF-2α kinase. This inhibition can be reproduced in extracts of interferon-treated cells where purified VAI RNA prevents activation of latent kinase by double-stranded RNA.
All Science Journal Classification (ASJC) codes
- Biochemistry, Genetics and Molecular Biology(all)