Table 2. Developed VZV BAC and degron containing VZV recombinants.

Gene	Protein	Function	Terminus attached	Resulting VZV
ORF4	IE4	regulator of mRNA export	N	replication conditional
ORF6	ORF6p	DNA primase	C	not viable
ORF9	ORF9p	tegument protein	C	replication conditional
ORF10	ORF10p	transcriptional activator	N or C	not replication conditional
ORF29	ORF29p	ssDNA binding protein	N or C	not viable
ORF52	ORF52p	DNA helicase	C	not viable
ORF55	ORF55p	DNA helicase	C	not replication conditional
ORF61	ORF61p	transcriptional regulator	N or C	not viable
ORF62	IE62	major transcriptional activator	N or C	not replication conditional
ORF63	IE63	transcriptional regulator	C	replication conditional