TABLE 7.

Plasmids used in this study

Plasmid	Construction	Replication origin	Antibiotic resistance marker	Host vector
pIL910	USR 1500 bp of dgc2::KmR::DSR 1500 bp of dgc2	ColE1	ApR, KmR	pBlueScript SK II (+)
pIL985	Sph I-dgc2-BamH I	ColE1	CmR	pPBHLI18
pIL1007	Sph I-USR400 bp of dgc2::dgc2-BamH I	ColE1	CmR	pIL985
pIL1018	Sph I-USR400 bp of dgc2::dgc2[AA]-BamH I	ColE1	CmR	pIL1007
pIL1019	Sph I-USR400 bp of dgc2::dgc2[∆cat]-BamH I	ColE1	CmR	pIL1007
pIL1195	USR1500 bp of pde1::KmR ::lacIq::Ptrc::LBDG_36750 (pde1)::DSR 1500 bp of pde1	ColE1	ApR, KmR	pBR322
pIL1205	LBDG21990_KmR ::lacIq::Ptrc::yhjH::LBDG_22000	ColE1	ApR, KmR	pIL1195