Capsomere

A capsomere is a subunit of the capsid, which is the protein shell of a virus. These protein subunits assemble to form the complete capsid. The arrangement of capsomeres determines the overall shape of the virus, which can be icosahedral, helical, or complex. Each capsomere is typically composed of one or more protein molecules. The specific type and number of capsomeres vary significantly between different virus species. This precise arrangement is crucial for the structural integrity of the virion and plays a role in the virus's interaction with host cells. The genetic material of the virus, whether DNA or RNA, is enclosed within the protective capsid formed by these capsomeres. Understanding the structure and function of capsomeres is essential for virology and the development of antiviral therapies.