TABLE 3.

Rnc70 restores λ plating on an HK022 lysogen^a

Strain	Presence of nun	Rnc	EOP
N9478	−		1.0
N9488	−	WT	1.0
N9487	−	Rnc70	1.0
N9480	+		<10−4
N9484	+	WT	<10−4
N9485	+	Rnc70	1.0

^aNun, when present, was provided by an HK022 lysogen. The Rnc column indicates the presence of either a wild type (WT)- or mutant (Rnc70)-overproducing rnc plasmid. Efficiencies of plating relative to that of N9478 were determined using λimm434 at 37°C.