8FFR image
Entry Detail
PDB ID:
8FFR
Keywords:
Title:
Revised structure of the rabies virus nucleoprotein-RNA complex
Biological Source:
PDB Version:
Deposition Date:
2022-12-09
Release Date:
2023-01-11
Method Details:
Experimental Method:
Resolution:
3.49 Å
R-Value Free:
0.25
R-Value Work:
0.22
R-Value Observed:
0.22
Space Group:
P 21 21 2
Macromolecular Entities
Polymer Type:polypeptide(L)
Description:Nucleoprotein
Chain IDs:A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, Q, R, S, T, U, V
Chain Length:450
Number of Molecules:22
Biological Source:Rabies virus CVS-11
Polymer Type:polyribonucleotide
Description:RNA (99-MER)
Chain IDs:W
Chain Length:99
Number of Molecules:1
Biological Source:synthetic construct
Polymer Type:polyribonucleotide
Description:RNA (99-MER)
Chain IDs:X
Chain Length:99
Number of Molecules:1
Biological Source:synthetic construct
Ligand Molecules
Primary Citation
Structure and Dynamics of the Unassembled Nucleoprotein of Rabies Virus in Complex with Its Phosphoprotein Chaperone Module.
Viruses 14 ? ? (2022)
PMID: 36560817 DOI: 10.3390/v14122813

Abstact

As for all non-segmented negative RNA viruses, rabies virus has its genome packaged in a linear assembly of nucleoprotein (N), named nucleocapsid. The formation of new nucleocapsids during virus replication in cells requires the production of soluble N protein in complex with its phosphoprotein (P) chaperone. In this study, we reconstituted a soluble heterodimeric complex between an armless N protein of rabies virus (RABV), lacking its N-terminal subdomain (NNT-ARM), and a peptide encompassing the N0 chaperon module of the P protein. We showed that the chaperone module undergoes a disordered-order transition when it assembles with N0 and measured an affinity in the low nanomolar range using a competition assay. We solved the crystal structure of the complex at a resolution of 2.3 Å, unveiling the details of the conserved interfaces. MD simulations showed that both the chaperon module of P and RNA-mediated polymerization reduced the ability of the RNA binding cavity to open and close. Finally, by reconstituting a complex with full-length P protein, we demonstrated that each P dimer could independently chaperon two N0 molecules.

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