root › Viruses › Riboviria › Pararnavirae › Artverviricota › Revtraviricetes › Ortervirales › Retroviridae › Orthoretrovirinae › Gammaretrovirus › Gammaretrovirus porConc › Porcine type-C oncovirus › Porcine endogenous retrovirus › Porcine endogenous retrovirus E