PTV-1 2A mediates co-translational separation
of NS1-mCherry and NEP by a mechanism termed “stop-carry on”
recoding (Sharma et al., 2012), generating two functional and independent
proteins. Although this approach has been successfully
used previously for the generation of recombinant fluorescentexpressing
IAV (Manicassamy et al., 2010; Nogales et al., 2014a),
we demonstrate the feasibility of using this same methodology for
the generation of IBVs encoding fluorescent proteins. Importantly,
the identity of the modified IBV-mCherry NS segment was confirmed
by RT-PCR