Table I. Viability of E.coli and P.aeruginosa strains upon pfColA production.

	Wild type	E.coli		P.aeruginosa
		Wild type (cai)a	tatA-E	Wild type	tatC
pMMB67EH	+	+	+	+	+
pRR-pfColA67	–	+	+	–	+

The + and – indicate the strains that are able to support efficient growth when transformed with the pMM67EH vector or the plasmid pRR-pfColA67 encoding RR–pfColA. Wild type indicates the wild-type strains of E.coli and P.aeruginosa in contrast to the tat mutant derivatives.

^aThe strain carries the pImTc encoding the immunity protein Cai.