Each of the P450s was co-expressed with CPR via simultaneous infection of Sf9 cells through two recombinant viruses (P450-recombinant baculovirus (P450rbv) with an MOI of 0.5 and CPR-recombinant baculovirus (CPRrbv) with an MOI of 0.05) in a standard suspension culture [28]. Here, POR is linked to infection.