Hexon

Hexon is a term with multiple meanings across disciplines. In biology, hexon refers to the major capsid protein of adenoviruses. Hexon proteins assemble into trimers that form the facets of the icosahedral virus particle. The hexon layer is highly immunogenic and varies among adenovirus serotypes, a basis for antigenic diversity and a key focus in vaccine vector research and serology. Structural studies of hexon have elucidated how the adenovirus capsid accommodates fibers at the vertices.

In geometry, hexon is an archaic or less common term for a six-faced polyhedron; the standard modern term is hexahedron. The cube is a regular hexahedron; hexon may appear in historical texts or specific contexts where older nomenclature prevails.

In addition, Hexon may be encountered as a brand or corporate name, used by companies in various sectors such as manufacturing, design, or software. When encountered, the intended meaning usually depends on the accompanying context, since hexon lacks a single universally recognized definition beyond these usages.