Figure 5From: Hepatitis A virus (HAV) packaging size limitSchematic representation of the HAV construct containing the EMCV IRES at the 5'NTR and the Bsd resistance gene at the 2A-2B junction. The EMCV IRES was inserted into the HAV 5'NTR in pHAVvec9-Bsd. The construct containing both the EMCV IRES at the 5'NTR and the Bsd resistance gene at the 2A-2B junction was termed pHAVvec9-Bsd-IRES.Back to article page