Given that the transcriptome data used for analysis here originated from AcMNPV infection of High Five cells and baculovirus protein expression profiles may differ between infection hosts [18,29], the divergence between the expected and observed transcriptional strengths of the 39k, orf75, and ctx promoters in this report may be due to host specific factors or promoter sequence selection. Here, CYP27A1 is linked to infection.