Genus

Genus: Xipapillomavirus

Subfamily: Firstpapillomavirinae

Genus: Xipapillomavirus

 

Distinguishing features

Infections by members of this genus cause true papillomas on the cutaneous or mucosal surfaces of ungulates. Most members of this genus do not encode an E6 protein. All viruses in this genus express an E10 protein from part of the genome typically occupied by E6. The E10 protein displays transforming properties. 

Genus

Genus: Etapapillomavirus

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.