This family consists of various caulimovirus viroplasmin proteins. The viroplasmin protein is encoded by gene VI and is the main component of viral inclusion bodies or viroplasms [2]. Inclusions are the site of viral assembly, DNA synthesis and accumulation [2]. Two domains exist within gene VI corresponding approximately to the 5' third and middle third of gene VI, these influence systemic infection in a light-dependent manner [1].

1: Identification of domains within gene VI of cauliflower mosaic virus that influence systemic infection of Nicotiana bigelovii in a light- dependent manner. Wintermantel WM, Anderson EJ, Schoelz JE; Virology 1993;196:789-798. PMID:8372449

2: DNA sequence of gene VI of cauliflower mosaic virus strain PV147. Volovitch M, Modjtahedi N, Chouikh Y, Yot P; Nucleic Acids Res 1990;18:5297-5297. PMID:2402462