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Updated: Nov 16, 2025
Expression and Purification of Virus-like Particles for Vaccination
Published on: June 2, 2016
A novel method for the in vitro assembly of virus-like particles and multimeric proteins
Mabel Rodríguez1, Ricardo M Castro-Acosta1, Elias R Ruiz-Morales2
1Laboratorio Nacional para la Producción y Análisis de Moléculas y Medicamentos Biotecnológicos, Instituto de Biotecnología, Universidad Nacional Autónoma de México, CP 62210, Cuernavaca, Morelos, Mexico.
Objective:
To develop a method for the efficient assembly of viral or multimeric proteins into virus-like particles (VLP) or other macro structures.
Results:
Protein monomers were assembled by eliminating calcium ions through precipitation. The model protein, rotavirus VP6, assembled into stable, long nanotubes with better quality than the assemblies obtained directly from cell culture. Nanotube length was directly proportional to the initial concentration of VP6 monomers, in accordance with the classic nucleation theory of capsid assembly. The quality of the obtained assemblies was confirmed when the nanotubes were functionalized with metals, yielding unique nanobiomaterials. Assembly efficiency was improved in comparison with other previously proposed methods.
Conclusions:
The novel method presented here is simpler and faster than other reported methods for the assembly and disassembly of viral proteins, a step needed for most applications.
