Table 1

qsc genes in P. aeruginosa

ClassificationIdentity*Signal response
30C12-HSLC4-HSLBoth
Class I
 qsc100Peptide synthetase (2,535,711)65369
 qsc101No match (2,065,297)1451184
 qsc102No match (2,067,716)3501400
 qsc103No match (4,375,793)85195
 qsc104Polyamine binding protein (2,935,208)728
 qsc105FAD-binding protein (2,927,668)40142
 qsc106A&BNo match (5,467,402 for 106A)9110
 qsc107No match (2,538,070)44250
Class II
 qsc108ORF 5 (2,720,329)1317
 qsc109Bacitracin synthetase 3 (2,678,258)1318
 qsc110A&BPyoverdine synthetase D (2,676,014 for 100A)1017
 qsc111Pyoverdine synthetase D (2,671,429)1117
 qsc112A&BAculeacin A acylase (2,636,707 for 112A)15112
 qsc113Transmembrane protein (4,566,558)515
 qsc114No match (3,128,663)917
 qsc115§No match (131,753)415
 qsc116No match (934,322)515
Class III
 qsc117§ACP-like protein (2,031,833)2222186
 qsc118RhII (3,889,744)381470
 qsc119RhlAB (3,890,793)97100
 qsc120Chloramphenicol resistance (3,745,609)3724
 qsc1213-Oxoacyl ACP synthase (3,742,723)1327105
 qsc122A&BCytochrome p450 (3,742,173 for 122A)21090
 qsc1239-Cis retinol dehydrogenase (3,740,171)142896
 qsc124A&BPyoverdine synthetase D (3,739,430 for 124A)3550148
 qsc125Zeaxanthin synthesis (3,737,612)2065140
 qsc126Pristanimycin I synthase 3 & 4 (3,734,193)3524
 qsc127No match (3,728,924)5215
 qsc128Hydrogen cyanide synthase HcnB (2,412,909)191242
 qsc129A&BCellulose binding protein p40 (931,539)151100
 qsc130glc operon transcription activator (6,023,975)5114
 qsc131PhzC (4,715,256)50168742
Class IV
 qsc132A&BUnknown (B. pertusis) (4,721,118 for 132A)1140
 qsc133A&BAcrB (4,709,375 for 133A)119
 qsc134Saframycin Mx1 synthetase A (4,556,461)6128
 qsc135Cytochrome C precursor (3,395,532)316
 qsc136No match (1,221,771)7310
 qsc137Asparagine synthetase (66,507)1110
 qsc138No match (58,785,410)3532
  • * The bold letters indicate matches were to known P. aeruginosa genes. The numbers in parenthesis are the chromosomal locations of the insertions (OriC is defined as base number 1). 

  • The signal response is given as β-galactosidase activity in cells grown in the presence of the indicated signal(s) divided by the β-galactosidase activity of cells grown in the absence of added signals. Maximum responses are indicated. 

  • The lacZ insertions in these strains are in the opposite orientation of the ORFs described in the P. aeruginoas Genome Project web site. We have indicated that the insertions are in locations with no reported identity. 

  • § Insertions do not lie in but are near the putative ORFs indicated. In qsc117 the insertion is 129 bp downstream of the ACP ORF and interrupts a potential rho-independent transcription terminator. The qsc115 insertion is 60 bp upstream of the ORF.