Structures of flavivirus RNA promoters suggest two binding modes with NS5 polymerase

Flaviviruses use a ~70 nucleotide stem-loop structure called stem-loop A (SLA) at the 5’ end of the RNA genome as a promoter for RNA synthesis by the viral polymerase NS5. Here the authors describe the structures of dengue and Zika virus SLAs, identify the SLA-binding site on NS5, and propose models...

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Autores principales: Eunhye Lee, Paul J. Bujalowski, Tadahisa Teramoto, Keerthi Gottipati, Seth D. Scott, Radhakrishnan Padmanabhan, Kyung H. Choi
Formato: article
Lenguaje:EN
Publicado: Nature Portfolio 2021
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Acceso en línea:https://doaj.org/article/acf8de90f3514ec8ab19ff937e51ff75
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Sumario:Flaviviruses use a ~70 nucleotide stem-loop structure called stem-loop A (SLA) at the 5’ end of the RNA genome as a promoter for RNA synthesis by the viral polymerase NS5. Here the authors describe the structures of dengue and Zika virus SLAs, identify the SLA-binding site on NS5, and propose models for how NS5 recognizes the RNA promoter.