9OCF image
Deposition Date 2025-04-24
Release Date 2025-09-03
Last Version Date 2025-10-29
Entry Detail
PDB ID:
9OCF
Keywords:
VIRAL PROTEIN, TRANSFERASE
Title:
2.73A cryo-EM structure of the Measles Virus L-P in complex with ERdRp-0519
Biological Source:
Source Organism:
Measles virus strain Edmonston-B (Taxon ID: 70146)
Host Organism:
Spodoptera frugiperda
Method Details:
Experimental Method:
ELECTRON MICROSCOPY
Resolution:
2.73 Å
Aggregation State:
PARTICLE
Reconstruction Method:
SINGLE PARTICLE
9OCF validation report
Macromolecular Entities
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:RNA-directed RNA polymerase L
Chain IDs:A
Chain Length:2183
Number of Molecules:1
Biological Source:Measles virus strain Edmonston-B
UniProt ID:Q83626 Pfam ID:PF00946, PF14318
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Phosphoprotein
Gene (Uniprot):P/V
Chain IDs:B, C, D, E
Chain Length:509
Number of Molecules:4
Biological Source:Measles virus strain Edmonston-B
UniProt ID:Q83623 Pfam ID:PF13825, PF03210
Ligand Molecules
A1EF9
Primary Citation
Structural basis of measles virus polymerase inhibition by nonnucleoside inhibitor ERDRP-0519.
Nat Commun 16 9061 9061 (2025)
PMID: 41083444 DOI: 10.1038/s41467-025-64128-0

Abstact

ERDRP-0519 is a potent nonnucleoside inhibitor active against measles virus (MeV) and other Morbilliviruses. Here we report cryo-EM structures of the compound bound to MeV polymerase complexes at 2.73 Å and 2.48 Å resolution, revealing a unique binding pocket in the RdRp palm subdomain that overlaps the catalytic GDN motif. These findings clarify the basis of resistance mutations, including W671, and provide a foundation for designing next-generation Paramyxovirus antivirals.

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Primary Citation of related structures
9OCF