Scientists have mapped the high-definition structure of important plant viruses

researchers at the University of Leeds and others in the United Kingdom have mapped the three-dimensional structure of a twin virus, revealing the unique structure of the twin virus at an atomic scale, helping to understand the mechanisms of reproduction and pathogenicity of such viruses and responding to related crop diseases.
The Bitroviral Department is one of the most widely speciesed plant viruses, containing more than 360 kinds of viruses, causing serious harm to corn, cotton, tomatoes and other crops worldwide, resulting in huge economic losses. The form of such viruses is particularly special, and the lack of understanding of their structure has hindered the study of pathogenicity.
team used advanced single-particle frozen electron mirror technology to map the three-dimensional structure of the fennel yellow vein virus, with a resolution of 3. 3 E (1 E equals 10 billionths of a meter) to determine the location of the vast majority of atoms in the virus. The paper was published in
Journal.
of the virus is a small piece of genetic material, usually wrapped in a protein shell, called a shell. Most viruses have spherical shells, while the twin viruses are two "twin" trophies that are connected together and wrapped in a single strand of DNA.
new structural diagram shows that the "bricks" that make up the shell of the twin virus are similar to other viruses in that they are three different shapes of the same protein molecule, but are constructed in a different way. In addition, the interaction between the DNA chain and the shell protein is different from other parts in the areas where the two crusts are connected.
the formation of twin virus particles is a long-standing challenge in related fields, and the researchers combined the new structural diagram with other data to propose a simple process for assembling virus particles. They plan to work out more details in further research to verify the feasibility of the process. (Source: Xinhua News Agency)