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Table 1 Quantified log 2 fold changes in response to iron-limitation

From: Role of oxygen and the OxyR protein in the response to iron limitation in Rhodobacter sphaeroides

Cluster

 

Oxic conditions

Anoxic conditions

Gene

Description

2.4.1 WT

2.4.1ΔoxyR

2.4.1 WT

2.4.1ΔoxyR

Cluster I

     

 RSP_0069

fliC, flagellar protein

-2.89

-2.33

-1.17

-1.05

 RSP_0850

mbfA, ferritin-like protein

-1.23

-1.09

-1.53

-1.01

 RSP_2395

ccpA, cytochrome c peroxidase

0.01

0.46

-0.81

-0.33

 RSP_6158

puc2A, light-harvesting complex

-5.63

-6.33

-1.01

-1.89

Cluster II

     

 RSP_0261

bchY, photopigment biosynthesis

-1.44

-2.21

-0.66

-0. 22

 RSP_0285

bchN, photopigment biosynthesis

-5.88

-4.84

-0.32

-0.63

 RSP_0288

bchL, photopigment biosynthesis

-4.12

-5.06

-0.44

-0.78

 RSP_0679

hemC, Vitamin B12 synthesis

-1.15

-1.50

0.16

-0.28

 RSP_1565

appA, blue light sensor

-1.85

-1.12

-0.82

-0.45

Cluster III

     

 RSP_0920

exbB, biopolymer transport protein

5.94

0.10***

3.03

3.02

 RSP_0921

exbD, biopolymer transport protein

4.38

0.96**

2.28

2.11

 RSP_0922

tonB, iron transporter

1.83

0.30**

1.63

1.34

 RSP_1438

ABC ferric transporter

3.02

-0.46**

2.47

2.15

 RSP_1547

bfd, bacterioferritin associated ferredoxin

3.21

0.91*

2.22

1.95

 RSP_1548

irpA, iron-regulated protein

5.40

0.78**

3.67

2.57

 RSP_2913

afuA, ABC siderophore transporter

6.08

2.02**

2.25

2.03

 RSP_6006

hemP, hemin uptake protein

5.51

2.16***

2.73

2.66

Cluster IV

     

 RSP_0130

metI, methionine uptake transporter

3.07

3.84

2.34

1.78

 RSP_1109

cysK, cysteine synthase

2.23

3.07

3.23

3.27

 RSP_1818

feoA1, ferrous iron transport protein

-1.12

-1.21

0.58

0.51

 RSP_3323

putative flavoprotein

1.90

1.56

2.84

2.64

 RSP_3696

cysA, ABC sulfate transporter

3.96

3.65

2.23

1.03*

 RSP_3697

cysP, ABC sulfate transporter

4.01

3.34

3.39

3.68

 RSP_6020

feoA2, ferrous iron transport protein

0.04

-0.17

1.37

1.18

Cluster V

     

 RSP_0994

phaD, NADH dehydrogenase

0.29

-0.46

-1.61

-1.35

 RSP_2311

groEL, chaperonin

1.49

-1.06**

1.80

1.61

 RSP_3567

znuB, ABC zinc transporter

0.08

0.03

-0.57

-0.13

Cluster VI

     

 RSP_0434

sufD, iron-regulated ABC transporter

3.40

-1.47***

0.40

0.69

 RSP_0437

sufC, iron-regulated ABC transporter

1.75

-0.83***

-1.35

-0.66

 RSP_0439

hypothetical protein

1.49

-0.76**

-0.72

-0.38

 RSP_0440

sufB, iron-regulated ABC transporter

2.60

-1.04*

0.01

0.44

 RSP_0443

iscR, iron sulfur cluster regulator

2.45

0.28*

-0.76

0.47

 RSP_0906

sitC, ABC Mn2+ transporter

2.91

0.95*

0.50

-0.35

 RSP_3568

znuC, ABC zinc transporter

1.22

-0.71**

0.29

0.92

Other genes

     

 RSP_0601

rpoH II , RNA polymerase sigma factor

1.52

-1.16***

0.48

0.88

 RSP_1092

rpoE, sigma factor

0.84

-1.58***

0.75

0.59

 RSP_2779

katE, catalase

1.19

-1.13*

0.88

1.38

  1. Real-time RT-PCR was used to investigate the relative expression of strongly regulated genes in oxic or anoxic conditions. Values are normalised to rpoZ and to the control under normal iron conditions. The data represent the mean of at least three independent experiments. A p-value was computed using the student’s t test. Variations were considered statistically significant when the p-value was ≤0.05.
  2. *significant at p ≤0.05; **significant at p ≤0.01; ***significant at p ≤0.001.
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BMC Genomics

ISSN: 1471-2164

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