TABLE 7.

ΔnlpB, ΔyraP, and ΔyfgL exhibit synthetic phenotypes with strains lacking periplasmic chaperones

RecipientP1 donor strainsa
surA::CmdegP::KmΔskp zae::Tn10ΔfkpA::Cm
ΔnlpBvs+++
ΔyraPvs+++
ΔyfgLvs++vs
  • a vs indicates that colonies appeared after 48 hr on LB at 30°C; for comparison, single mutants formed colonies after 18 hr at 30°C. A plus sign indicates that the phenotype of the double mutant was the same as that of the single mutant.