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Vaccinia virus (VACV) encodes DNA polymerase and additional proteins that enable cytoplasmic replication. We confirmed the ability of VACV DNA ligase mutants to replicate and tested the hypothesis that cellular ligases compensate for loss of viral gene expression. RNA silencing of human DNA ligase I expression and a small molecule inhibitor of human DNA ligase I severely reduced replication of viral...
Vaccinia virus encodes a 90-kDa protein conserved in all poxviruses, with DNA primase and nucleoside triphosphatase activities. DNA primase products, synthesized with a single stranded ϕX174 DNA template, were resolved as dinucleotides and long RNAs on denaturing polyacrylamide and agarose gels. Following phosphatase treatment, the dinucleotides GpC and ApC in a 4:1 ratio were identified by nearest...
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