Biology:Tombusvirus 3′ UTR region IV

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Tombusvirus 3′ UTR region IV
RF00176.jpg
Predicted secondary structure and sequence conservation of Tombus_3_IV
Identifiers
SymbolTombus_3_IV
RfamRF00176
Other data
RNA typeCis-reg
Domain(s)Viruses
SO0000205
PDB structuresPDBe

Tombusvirus 3′ UTR is an important cis-regulatory region of the Tombus virus genome.[1]

Tomato bushy stunt virus is the prototype member of the family Tombusviridae. The genome of this virus is positive sense single stranded RNA. Replication occurs via a negative strand RNA intermediate. In addition to viral proteins p33 and the RNA-dependent RNA polymerase p92, and unknown host factors, conserved and structural regions within the 3′ untranslated region (3′ UTR) are important for regulating genome replication. This 3′ structural element contains a pseudoknot.[1][2]

Other non-coding RNA structures in Tombusvirus include the 5′ UTR and an internal replication element.[3]

References

  1. 1.0 1.1 "3′-Terminal RNA secondary structures are important for accumulation of tomato bushy stunt virus DI RNAs". Virology 313 (2): 567–580. 2003. doi:10.1016/S0042-6822(03)00349-0. PMID 12954222. 
  2. "A replication silencer element in a plus-strand RNA virus". EMBO J. 22 (20): 5602–5611. 2003. doi:10.1093/emboj/cdg523. PMID 14532132. 
  3. Monkewich, S; Lin HX; Fabian MR; Xu W; Na H; Ray D; Chernysheva OA; Nagy PD et al. (2005). "The p92 Polymerase Coding Region Contains an Internal RNA Element Required at an Early Step in Tombusvirus Genome Replication". J Virol 79 (8): 4848–4858. doi:10.1128/JVI.79.8.4848-4858.2005. PMID 15795270. 

External links