The influence of the transient expression of dbp or BmRPSA on the polyhedrin promoter. Recombinant baculovirus Bacmid-Luc containing luc under the control of the polyhedrin gene promoter (as a control) was used to test the effect of BmRPSA and dbp on luc expression. The transient expression vector pSK-IE containing the IE promoter was able to promote the expression of the BmRPSA and dbp genes. The fluorescence intensity of BmN cells was quantified using a luminometer. Values are expressed as mean TSEM (n = 3). Similar results were obtained in three independent experiments.