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Updated: May 29, 2026
09:08
Generation and Assembly of Virus-Specific Nucleocapsids of the Respiratory Syncytial Virus
Published on: July 27, 2021
Structural insights into the Nipah virus nucleocapsid assembly
Ge Yang1, Dmytro Kompaniiets1, Dong Wang1
1Section of Transcription & Gene Regulation, The Hormel Institute, University of Minnesota, Austin, MN, USA.
Communications Biology
|May 27, 2026
Summary
Nipah virus (NiV) nucleocapsid structure reveals key interactions essential for its assembly and stability. These findings offer potential targets for developing new antiviral therapies against this lethal henipavirus.
Area of Science:
- Virology
- Structural Biology
- Biochemistry
Background:
- Nipah virus (NiV) is a deadly zoonotic henipavirus posing a significant public health risk.
- The NiV nucleoprotein (N) is crucial for genome protection, forming the nucleocapsid with the RNA-dependent RNA polymerase (L) and phosphoprotein (P).
Purpose of the Study:
- To determine the cryo-electron microscopy (cryo-EM) structure of the NiV nucleocapsid complexed with L and P.
- To elucidate the molecular interactions governing NiV nucleocapsid assembly and stability.
Main Methods:
- Cryo-electron microscopy (cryo-EM) at 2.96 Å resolution.
- Analysis of N-N and N-RNA interfaces.
- Site-directed mutagenesis and minigenome assays for functional validation.
Main Results:
- The NiV nucleocapsid exhibits irregular helical packing and axis bending, reflecting its physiological state.
- Detailed analysis identified critical salt bridges, hydrogen bonds, and novel loop-mediated contacts at N-N and N-RNA interfaces.
- Functional assays confirmed the importance of these interactions for nucleocapsid stability.
Conclusions:
- The study provides high-resolution structural insights into NiV nucleocapsid assembly.
- Identified interactions represent potential vulnerabilities for antiviral drug development against Nipah virus.
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