Figure 1From: Human coronavirus 229E encodes a single ORF4 protein between the spike and the envelope genesSchematic overview of group 1b accessory protein genes between the S and E gene. PEDV (NC_003436), HCoV-NL63 (NC_005831) and HCoV-229E (NC_002645), the truncated forms of PEDV (P40) and (P80) are based on previous published data [7].Back to article page