Members of this entry are encoded by genes in chlamydia-phage such as Chp2. These viruses have around eight genes and obligately infect intracellular bacterial pathogens of the genus Chlamydia. This protein is annotated as VP3 or structural protein (as if a protein of mature viral particles), however, it is displaced from procapsids as DNA is packaged, and therefore is more correctly described as a scaffolding protein.