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Table 1 Genes with ≥20 fold-change for at least two time points after HgCl2 exposure (n = 25)

From: Transcriptional responses of Escherichia coli during recovery from inorganic or organic mercury exposure

Gene ID

Gene Name

Product Description

Hg t10

Hg t30

Hg t60

PMA t10

PMA t30

PMA t60

b1112

bhsA

Biofilm, cell surface and signaling defects, YhcN family

1949

563

94

46

21

n.s.

b4458

oxyS

OxyS sRNA activates genes that detoxify oxidative damage

1524

1292

150

10

6

n.s.

b4249

bdcA

c-di-GMP-binding biofilm dispersal mediator protein

596

79

7

16

2

n.s.

b3686

ibpB

Chaperone, heat-inducible protein of HSP20 family

402

124

281

37

211

9

b0812

dps

Stress-induced Fe-binding and storage protein

339

52

n.s.

4

2

n.s.

b4248

yjgH

Putative reactive intermediate deaminase, UPF0076 family

296

24

3

6

2

n.s.

b0849

grxA

Glutaredoxin 1

246

33

n.s.

14

4

n.s.

b1144

ymfJ

Function unknown, e14 prophage

185

39

n.s.

3

3

n.s.

b2582

trxC

Thioredoxin 2, zinc-binding; Trx2

134

50

7

24

24

n.s.

b1147

ymfL*

Function unknown, e14 prophage

95

29

n.s.

n.s.

3

n.s.

b1146

croE*

Cro-like repressor, e14 prophage

90

40

n.s.

n.s.

n.s.

n.s.

b3687

ibpA

Chaperone, heat-inducible protein of HSP20 family

86

19

41

10

28

4

b2531

iscR

Transcriptional repressor for isc operon; contains Fe-S cluster

62

48

9

12

18

n.s.

b1148

ymfM*

Function unknown, e14 prophage

49

21

n.s.

n.s.

n.s.

n.s.

b4599

yneM

function unknown, membrane-associated; regulated by PhoPQ

38

36

n.s.

3

3

n.s.

b2673

nrdH

NrdH-redoxin reducing oxidized NrdEF

35

127

21

7

14

n.s.

b4030

psiE

Pho regulon, regulated by phoB and cAMP

35

64

17

38

59

n.s.

b1684

sufA

Scaffold protein for assembly of iron-sulfur clusters

32

39

5

n.s.

3

n.s.

b1748

astC

Succinylornithine transaminase; carbon starvation protein

30

31

25

34

36

n.s.

b4663

azuC

Function unknown; membrane-associated

27

25

36

41

49

n.s.

b0484

copA

Copper-, silver-translocating P-type ATPase efflux pump

25

20

n.s.

5

n.s.

−10

b2674

nrdI

Flavodoxin required for NrdEF cluster assembly

21

73

22

4

7

n.s.

b1747

astA*

Arginine succinyltransferase, arginine catabolism

10

20

29

9

14

n.s.

b1020

phoH

ATP-binding protein, function unknown

8

71

221

61

365

n.s.

b4002

zraP

Zn-dependent periplasmic chaperone

3

27

43

n.s.

n.s.

−3

  1. Table is sorted by Hg at 10 min column. n.s. = not significantly different from unexposed culture and boldface highlights actual values ≥20-fold. Gene names in boldface have a ≥ 20 differential expression response to both Hg and PMA in at least one time point (n = 8). Genes marked with an asterisk (*) had fewer than 11 average read counts for at least 2 time points in the unexposed condition and were operationally defined as being “off” in that condition. Such genes constituted, the lowest 15th percentile of all genes, based on raw read counts normalized across all libraries and across all biological replicates
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BMC Genomics

ISSN: 1471-2164

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