Virus-like particles

Virus-like particles consist of one or more structural proteins that, when expressed recombinantly, have the ability to self-assemble. Proteins can be arranged in single, double or triple layers. The VLPs of human papilloma virus (HPV) are formed by a single structural protein that forms the basic capsid of the particle. https://www.creative-biolabs.com/vaccine/virus-like-particles-based-vaccines.htm