6W3M image
Entry Detail
PDB ID:
6W3M
Keywords:
Title:
Solution NMR Structure of 5'UTR Stem Loop B in DENV4 Flavivirus.
Biological Source:
PDB Version:
Deposition Date:
2020-03-09
Release Date:
2020-09-23
Method Details:
Experimental Method:
Conformers Calculated:
150
Conformers Submitted:
10
Selection Criteria:
structures with the lowest energy
Macromolecular Entities
Polymer Type:polyribonucleotide
Description:RNA (41-MER)
Chain IDs:A
Chain Length:41
Number of Molecules:1
Biological Source:Dengue virus 4 Philippines/H241/1956
Ligand Molecules
Primary Citation
NMR structure of Dengue West Nile viruses stem-loop B: A key cis-acting element for flavivirus replication.
Biochem.Biophys.Res.Commun. 531 522 527 (2020)
PMID: 32807496 DOI: 10.1016/j.bbrc.2020.07.115

Abstact

Flaviviruses are major emerging human pathogenic viruses that pose a persistent and growing menace to global health. They are enveloped single-stranded RNA viruses with positive polarity transmitted by arthropod vectors like mosquitoes or ticks, responsible for a significant and growing number of human deaths and illnesses. The 5'- and 3'-untranslated regions (UTRs) are highly structured and contain conserved cis-acting RNA elements that participate in viral translation, replication and host adaptation. Despite their role in fiaviviruses replication, few high-resolution structural studies have investigated the RNA elements required for viral replication. Here we report the NMR structures of stem-loop B from WNV and DENV4 viruses. Because this element is required for cyclization of the genome and the activity of the replicative viral enzymes, viral replication rates are sensitive to even small changes in these RNAs. Therefore, this work provides structural insight into a new drug target to reduce flavivirus replication rates.

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