Table 1.

Plasmid constructs.

Plasmid	Properties
	Promoter P1	Ribosome-binding site
pP1-(SD)-hIFNγ	(+)	(+) (1 × SD)
pΔP1-(ΔSD)-hIFNγ	(-)	(-)
pP1-(ΔSD)-hIFNγ	(+)	(-)
pP1-(4SD)-hIFNγ	(+)	(+) (4 × SD)