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. 2017 Nov 22;8:2302. doi: 10.3389/fmicb.2017.02302

FIGURE 2.

FIGURE 2

Construction of recombinant EBV featuring a mutation in the LMP1 promoter. (A) Schematic arrangement of recombination of the EBV genome using tandemly arranged neomycin-resistance and streptomycin-sensitivity genes (Neo/st). The B95-8 ED-L1 LMP1 promoter (–360 to –11) was first replaced with the Neo/st cassette, which was then replaced with mutated sequences (ringed X) to construct mutant EBV-BACs. TR, terminal repeat; TR-L1p, TR leftward promoter 1 (distal LMP1 promoter); ED-L1p, EcoRI-Dhet fragment leftward promoter 1 (proximal LMP1 promoter). (B) Electrophoresis of recombinant virus genomes. Recombinant EBV genomes were digested with BamHI or EcoRI and resolved on an agarose gel.