TABLE 2.

Canonical SOS boxes within promoter regions that are not bound by LexA

Gene	Sequencea	Positionb	No. of mismatches	Fold inductionc
flhO	aGAACgaAcGTTCc	−44	5	−1.4
yckD	CGAAtAatgGTTCG	−75	4	1.4
yobQ	gGAACgcATGTTtt	−110	5	1.4
yokF	aGAACAaAcaTTCt	−17	5	1.8
yopS	gGAACgTgcGTTCt	−119	5	1.3
yopT	aGAACgcAcGTTCc	−51	5	1.3
yorL	aGAACtTgTGTTtt	−15	5	1.4
yuiC	gGAACAatgaTTCG	−13	5	1.0
Two 5′-GAAC-3′ mismatches
azlB	CGAAtAaAaaTTCG	−57	4	1.2
ctaA	aaAACAcATaTTCG	−70	4	1.2
ctpA	CGAAtAagaaTTCG	−53	5	1.1
icd	CaAACAaAaaTTCG	−200	4	1.3
yprA	CaAACAaATaTTCG	−32	3	1.5
yvsG	CaAACATAcaTTCt	−70	4	2.3
Destabilizing mismatches
appC	CGAACAaATtTTCa	−178	3	−2.8
divIC	CGAAacaATGTTtG	−146	4	−1.2
dltA	CGAAtAccgGTTCa	−39	5	−1.2
dnaX	CGAAacaAgGTTCa	−42	5	2.2d
hxlA	tGAACAataaTTCG	−33	5	1.4
menE	CaAACATcaGTTCa	−127	4	1.1
oxdC	CGAAaAgAaGTTtG	−184	4	1.3
recO	gGAACgTATtTTCt	−151	4	−1.3
recQ	gGAACAgcgGTTCa	−46	5	1.1
rocC	CaAACcaccGTTCa	−58	6	1.4
sigE	CGAAaATgctTTCG	−90	4	1.2
sigF	gGAACAacgaTTCG	−55	5	1.2
xkdJ	tGAACAgcTGTTtG	−60	4	1.1
ydjJ	CaAACATtcGTTCa	−87	4	1.2
ycgM	tGAACgctgGTTtt	−60	7	3.1
yqaL	tGAACtTccGTTtG	−70	5	−1.2
yraH	aGAAtcgcTGTTTt	−159	7	6.2
yrdC	aGAACgcATtTTCc	−108	5	1.1

^aLowercase and uppercase nucleotides indicate nonconsensus and consensus, respectively. Destabilizing mismatches are shown in boldface.

^bLocation of the 3′ end relative to the ATG codon of the respective gene.

^cFold induction following treatment with MC in wild-type cells; data also listed in Tables 4 and 6.

^dThe dnaX gene is induced about twofold in both wild-type and recA mutant cells.