Identification and characterization of host factor interactions with cis-acting elements of rubella virus RNA

  • H. L. Nakhasi
  • N. K. Singh
  • G. P. Pogue
  • X.-Q. Cao
  • T. A. Rouault
Conference paper
Part of the Archives of Virology Supplementum book series (ARCHIVES SUPPL, volume 9)


We have analyzed the function of cis-acting elements of rubella virus RNA and the components which interact with these elements in viral RNA replication. We demonstrated that the 5′- and 3′-terminal sequences from RV RNA promote translation and negative- strand RNA synthesis of chimeric chloramphenicol acetyltransferase (CAT) RNAs. These sequences have a potential to form stem-loop (SL) structures and bind cellular proteins specifically in RNA gel-shift and UV cross-linking assays. The 5’ end binding proteins were identified to be Ro/SSA-associated antigens by virtue of being recognized in an RNA complex by an autoimmune patient serum with Ro antigen type specificity. Purification and sequence analysis of the 3’ end binding protein revealed that it is a homologue of human calreticulin. The role of host proteins in RV replication is discussed.


Rubella Virus Primer Extension Product Conserve Sequence Element Chimeric RNAs Adenovirus Major Late Promoter 
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Copyright information

© Springer-Verlag 1994

Authors and Affiliations

  • H. L. Nakhasi
    • 1
  • N. K. Singh
    • 1
  • G. P. Pogue
    • 1
  • X.-Q. Cao
    • 1
  • T. A. Rouault
    • 2
  1. 1.Division of Hematologic Products, CBER, Food and Drug AdministrationNational Institutes of HealthBethesdaUSA
  2. 2.Cell Biology and Metabolism Branch, National Institute of Child Health and Human DevelopmentNational Institutes of HealthBethesdaUSA

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