Selected article for: "acute respiratory syndrome and loop stem structure"
Author: Lee, Chul Won; Li, Lichun; Giedroc, David P.
Title: The solution structure of coronaviral stem-loop 2 (SL2) reveals a canonical CUYG tetraloop fold
  • Cord-id: ehwdg722
  • Document date: 2011_4_6
    • ID: ehwdg722
    Snippet: Abstract The transcription and replication of the severe acute respiratory syndrome (SARS) coronavirus (SARS-CoV) is regulated by specific viral genome sequences within 5′- and 3′-untranslated regions (5′-UTR and 3′-UTR). Here we report the solution structure of 5′-UTR derived stem-loop 2 (SL2) of SARS-CoV determined by NMR spectroscopy. The highly conserved pentaloop of SL2 is stacked on 5-bp stem and adopts a canonical CUYG tetraloop fold with the 3′ nucleotide (U51) flipped out of
    Document: Abstract The transcription and replication of the severe acute respiratory syndrome (SARS) coronavirus (SARS-CoV) is regulated by specific viral genome sequences within 5′- and 3′-untranslated regions (5′-UTR and 3′-UTR). Here we report the solution structure of 5′-UTR derived stem-loop 2 (SL2) of SARS-CoV determined by NMR spectroscopy. The highly conserved pentaloop of SL2 is stacked on 5-bp stem and adopts a canonical CUYG tetraloop fold with the 3′ nucleotide (U51) flipped out of the stack. The significance of this structure in the context of a previous mutagenesis analysis of SL2 function in replication of the related group 2 coronavirus, mouse hepatitis virus, is discussed.

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