Subfamily: Firstpapillomavirinae

Genus: Etapapillomavirus

Distinguishing features

Members of this genus are associated with cutaneous lesions in birds. Unlike the prototypical E6 protein which contains two zinc-binding motifs, the etapapillomavirus E6 protein contains a single zinc-binding motif. These papillomaviruses contain an E9 protein of unknown function. No E8^E2 or E1^E4 proteins have been identified. 

Virion

See discussion under family description. 

Genome organization and replication

See discussion under family description. 

Biology

See discussion under family description. 

Species demarcation criteria

Putative novel papillomavirus genome with complete genome sequence data available and that is <70% related to papillomaviruses within the genus.