ISDA: 9OD5

Deposition Date 2025-04-25

Release Date 2025-10-15

Last Version Date 2025-10-22

Entry Detail

PDB ID:

9OD5

Keywords:

RNA

Title:

Solution structure of the Ebola Transcriptional Regulatory Signal - configuration A

Biological Source:

Source Organism:

Ebola virus (Taxon ID: 1570291)

Host Organism:

in vitro transcription vector pT7-TP(deltai)

Method Details:

Experimental Method:

SOLUTION NMR

Conformers Calculated:

100

Conformers Submitted:

Selection Criteria:

structures with the lowest energy

Download Validation Report

Macromolecular Entities

Polymer Type:polyribonucleotide
Molecule:RNA (5'-R(*CP*UP*CP*CP*UP*UP*CP*UP*AP*AP*UP*UP*AP*UP*UP*AP*(AHE)P*AP*AP*GP*GP*AP*G)-3')
Chain IDs:A
Chain Length:23
Number of Molecules:1
Biological Source:Ebola virus

Ligand Molecules

Primary Citation

The Ebolavirus Transcription Regulatory Signal Equilibrates Between Two Structural Conformations to Affect VP30 Binding.

Edwards, J.M, Kachale, A, McCleery, S.R, Law, G.A, Patel, V, D'Souza, V.M, Pham, V.V.Show

J.Mol.Biol. 437 169464 169464 (2025)

PMID: 41015113 DOI: 10.1016/j.jmb.2025.169464

Abstact

The transcription of ebolavirus (EBOV) genomes is a major checkpoint in the viral life cycle. Altering the transcription regulatory signal (TRS), an RNA hairpin that forms in the 3' leader sequence of EBOV, affects transcription in a VP30-dependent manner. How this mechanistically occurs is currently unknown. Here, we find that the TRS primarily equilibrates between two structures that differ in their loops. Mutational studies demonstrate that the entire hairpin structure is important in directing both VP30 binding and regulating EBOV transcriptional activity, with the loop being the principal structural element. In doing so, we highlight that the TRS structure is a critical determinant of EBOV transcription.

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Protein

Chemical

Disease

Primary Citation of related structures

Abstact

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