FIG. 1.

Structure of the PRV virion. PRV virions are composed of four structural elements. The double-stranded DNA genome is housed in an icosahedral capsid. The tegument is a collection of approximately 12 proteins organized into at least two layers, one which interacts with envelope proteins and one that is closely associated with the capsid. The envelope is a lipid bilayer infused with transmembrane proteins, many of which are modified by glycosylation. Listed are proteins thought to be components of the virion; however, not all proteins are represented in the cartoon.