TABLE 3.

Conservation of enhancer sequences in Nidovirales

VirusCoronavirus groupEnhancer elementaMost 3′ geneb
TGEV1a+7
FIPV1a+7
CCoV1a+7
HCoV 229E1bN
Porcine epidemic diarrhea virus1bN
MHV2aN
SARS-CoV2bN
IBV3aN
Equine arteritis arterivirusArteriviridaeN
  • a The presence of an enhancer element, a distal sequence complementary to a proximal sequence segment, is indicated by the symbol +.

  • b For each virus, the most 3′ gene in the genome is indicated.