SDS-PAGE of OMPs from recombinant strains that were cultivated at 30°C and were grown for an additional 2 h after induction (A) and recombinant strains that were cultivated at 24°C and were grown for an additional 4 h after induction (B). Lane 1, MC4100; lane 2, MC4100(pTCdP); lane 3, MC4100(pTCHP1); lane 4, MC4100(pTCHP2); lane 5, MC4100(pTCHP3); lanes 6 and 7, MC4100(pTCHP6); lane 8, MC4100(pTCHP12).