Completed Cells, Biochemistry & Physiology Infection & Immunity

Virus Structures

In plain English

AI plain-English summary

Flu virus particles can switch from harmless-looking spheres into long, thread-like filaments, and no one knows what these filaments actually do. David Bhella and Edward Hutchinson at the University of Glasgow are using advanced microscopy to find out. The team studies several dangerous viruses—respiratory syncytial virus, herpes simplex, and Zika—but influenza is their main target. When flu virus is grown in the lab, it forms spherical particles. But virus taken directly from infected patients also produces long filaments, and animal studies show these filaments are important for transmission. The researchers want to identify which viral and host proteins build these filaments and how their structure relates to the virus’s ability to spread. To do this, they are developing new methods to determine the shape of virus-related molecules inside cells. This is fundamental science: there is no immediate treatment or vaccine on the horizon. But understanding how flu particles change shape could eventually reveal new vulnerabilities in the virus, pointing toward drugs that block transmission rather than just treating symptoms. Similar structural studies of other viruses have already led to effective vaccines and antivirals.

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Dr David Bhella, Lead Investigator and Dr Edward Hutchinson as a Co-Investigator, MRC-University of Glasgow Centre for Virus Research (CVR) University of Glasgow. The virus structure programme aims to understand how proteins are assembled into functional virus particles. We are investigating several viruses of medical and veterinary importance including respiratory syncytial virus (RSV), herpes simplex virus and Zika virus, with a primary focus on influenza (flu) virus. Flu viruses cause frequent outbreaks of respiratory infections and can cause severe disease. When we grow flu virus in the lab, it typically produces spherical virus particles. On the other hand, flu that has recently been isolated from clinical infections is also able to form extremely long, filamentous virus particles. These function of these filaments is unknown, though they have been shown to be important for transmission in animals. We are therefore working to define the role filaments play during flu infections. More broadly, we are investigating the identity and structure of the virus and host proteins that make up virus particles and how these relate to viruses’ form and function. To do so, we are developing new approaches to studying virus composition and structure; in particular, by pioneering methods for determining the shape of virus-related molecules within the cell. These studies may allow us to define new ways to treat flu and other viruses.

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Researchers

David Bhella (Principal Investigator)

Related Research

Grants with similar aims, by meaning.

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The structure and function of the human respiratory syncytial virus M2-1 protein and its critical interaction with viral cofactors
Structural Studies on Viruses, Viral Proteins and Cell Interactions
Structural studies of lipid-enveloped viruses by cryo-EM

Original classification

Intramural

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