Genus

Genus: Alpharetrovirus

Subfamily: Orthoretrovirinae

Genus: Alpharetrovirus

 

Distinguishing features

Virus particles assemble at the plasma membrane and exhibit a “C-type” morphology. Viruses in the genus have an envelope TM protein with an internal fusion peptide flanked by two cysteines, whereas viruses in the other genera typically have an N-terminal fusion peptide. Many oncogene-containing members of the genus have been isolated.