What is the function of the vaccinia virus in T7 driven VSV minigenome?

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Didier Poncet

I guess it is a vaccinia recombinant virus that expresses the T7 polymerase to transcribe the VSV genome cloned downstream a T7 promoter.

Joyce Sweeney Gibbons

I believe you are correct, Didier. It produces more of the T7 . I assumed since the MG was done in BSRT7 cells that would be the sole source of T7 but I was wrong. Thank you for the clarification!