Members of the only species in this genus are associated with cutaneous lesions in birds and does not contain an E6 ORF, but contains an E9 protein of unknown function. No E8^E2 or E1^E4 proteins have been identified.
See discussion under family description.
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.
Members of this genus produce cutaneous infections in horses.
See discussion under family description.
See discussion under family description.
Infections are associated with cutaneous papillomas in ungulates.
See discussion under family description.
See discussion under family description.
These viruses are associated with fibropapillomas in their respective ungulate hosts. Trans-species transmission occurs, where it induces non-productive sarcoids. The E5 protein, located in the region between the early and late genes, has transforming properties.
See discussion under family description.
Members of this genus are typically found on the skin and oral mucosa of primates. Infections are usually asymptomatic. However, some infections cause cutaneous lesions in their host and are histologically distinguishable by intracytoplasmic inclusion bodies. The members of the species Gammapapillomavirus 6 do not contain an E6 ORF, but encode a putative E10 protein in the same location.
The papillomaviruses within the subfamily Firstpapillomavirinae are associated with amniote (reptile, bird, and mammalian) hosts. These viruses contain the core viral proteins (E1, E2, L1, and L2) and at least one additional accessory protein (E5, E6 or E7).
The exemplar isolate of the single species in this genus (the only genus in the Secondpapillomavirinae) was associated with skin lesions of fish, gilt-head (sea) bream (Sparus aurata), and has the smallest papillomavirus genome known. The genome consists of the core viral proteins (E1, E2, L1, and L2).
