Table 1 Changes in protein abundance and transcript levels on selected genes after T. pseudonana cells were switched from 20,000 to 50 ppm CO2.

From: Responses of the marine diatom Thalassiosira pseudonana to changes in CO2 concentration: a proteomic approach

Accession No. (NCBI)

Accession No. (Swiss Prot)

Gel

Spot ID

Annotation

Functional group

Protein fold change

RNA fold change

220971674

B8C995

3–11

435

Translation elongation factor alpha

Protein synthesis

4.11

220973545

B8C239

3–11

431

RL4e, ribosomal protein 4e 60S large ribosomal subunit

Protein synthesis

3.86

220976737

B8BTB5

4–7

422

Transmembrane hypothetical protein (THP)

Carbon acquisition

3.71

388

220970433*

B8CCH0*

4–7

172

LCIP63

Unknown function

3.60

409

220969212

B8CGE1

3–11

549

Stress-inducible protein sti1 (BLAST)

Stress

3.42

2.27

220976737

B8BTB5

3–11

696

Transmembrane hypothetical protein (THP)

Carbon acquisition

3.41

388

209583601

B5YLS7

4–7

368

Triose-phosphate isomerase

Carbohydrate metabolism

3.20

220978199

B8BRE6

4–7

378

Light-repressed protein a

Protein synthesis

2.90

1.83

220969257

B8CFA9

4–7

380

Ascorbate peroxidase

Stress

2.61

220970433*

B8CCH0*

3–11

408

LCIP63

Unknown function

2.40

409

220972037

B8C7S8

4–7

585

Hypothetical protein THAPSDRAFT_7881

Unknown function

2.32

220978087

B8BQS1

3–11

926

Protein with CP12 domain (BLAST)

Photosynthesis

2.29

2.15

220978087

B8BQS1

4–7

425

Protein with CP12 domain (BLAST)

Photosynthesis

2.23

2.15

220975793

B8BX06

3–11

627

14–3–3-like protein

Degradation & signalling

2.13

220969044

B8CGL9

4–7

317

Ferredoxin-NADP reductase

Photosynthesis

2.06

220974564

B8BZK1

4–7

342

Phosphomannomutase

Carbohydrate metabolism

2.06

220976367

B8BU33

3–11

875

Fucoxanthin-chlorophyll a/c light-harvesting protein

Photosynthesis

1.99

220969044

B8CGL9

3–11

541*

Ferredoxin-NADP reductase

Photosynthesis

1.74

220969727

B8CEN5

4–7

389

Glycoprotein fp21 (BLAST)

Unknown function

1.67

589908182

W8VYH0

4–7

420

Delta carbonic anhydrase

Carbon acquisition

1.65

220974490

B8BZ41

4–7

266

Phosphofructokinase

Carbohydrate metabolism

−1.45

224011563

B5YLQ5

3–11

366

Mitochondrial chaperonin

Chaperone

−1.51

125987721

A0T0R6

4–7

207

ATP synthase CF1 beta chain

Energy/ATP

−1.54

209586260

B5YN92

3–11

914

Phosphoglycerate kinase (BLAST)

Photosynthesis

−1.55

220968997

B8CGK1

4–7

588

Glutamine synthetase (BLAST)

Nitrogen metabolism

−1.56

220970599

B8CCE1

4–7

322

Pseudouridylate synthase

Protein synthesis

−1.57

125987749

A0T0 × 9

3–11

684

30S ribosomal protein S3, chloroplastic

Protein synthesis

−1.58

209586260

B5YN92

3–11

915

Phosphoglycerate kinase (BLAST)

Photosynthesis

−1.60

220976316

B8BTR4

4–7

515

Transketolase

Carbohydrate metabolism

−1.61

220969226

B8CGI1

3–11

672

Demethylmenaquinone methyltransferase (BLAST)

Secondary metabolism

−1.61

220968997

B8CGK1

4–7

590

Glutamine synthetase (BLAST)

Nitrogen metabolism

−1.61

220968642

B8LCI4

4–7

593

Phosphoglycerate dehydrogenase (BLAST)

Nitrogen metabolism

−1.63

220975991

B8BY55

4–7

199

S-adenosylmethionine synthetase

Nitrogen metabolism

−1.65

220970584

B8CCA0

4–7

269

Aspartate-ammonia ligase

Nitrogen metabolism

−1.65

209586260

B5YN92

3–11

461

Phosphoglycerate kinase (BLAST)

Photosynthesis

−1.68

220973284

B8C635

3–11

369

Heat shock protein 70

Chaperone

−1.69

220969617

B8CET1

3–11

921

PEFG, plastid translation factor EF-G (BLAST)

Protein synthesis

−1.70

118411188

A0T0 × 0

3–11

427

60 kDa chaperonin

Chaperone

−1.71

125987721

A0T0R6

3–11

860

ATP synthase CF1 beta chain

Energy/ATP

−1.76

220977307

B8BT02

4–7

233

Aspartate aminotransferase

Nitrogen metabolism

−1.77

220970665

B8CCS6

3–11

438

Serine hydroxymethyltransferase

Nitrogen metabolism

−1.80

118411103

A0T0N5

4–7

541

Rubisco small subunit

Photosynthesis

−1.82

209583569

B5YLM0

4–7

182

Histidinol dehydrogenase

Nitrogen metabolism

−1.82

220977520

B8BQU2

3–11

919

Glyceraldehyde-3-phosphate dehydrogenase precursor

Photosynthesis

−1.88

220970292

B8CDB3

3–11

857

Geranylgeranyl reductase (BLAST)

Secondary metabolism

−1.92

220972213

B8C6C6

3–11

849

Mitochondrial ATPase, inner membrane

Energy/ATP

−1.98

118411103

A0T0N5

4–7

542

Rubisco small subunit

Photosynthesis

−2.00

220968222

B8LDL7

4–7

592

N-acetyl-glutamate-gamma-semialdehyde dehydrogenase

Nitrogen metabolism

−2.07

220971973

B8C8K9

4–7

526

RS1, ribosomal protein 1, partial

Protein synthesis

−2.07

209585841

B5YMV8

3–11

350

Regulation, link with ATP synthase (BLAST)

Energy/ATP

−2.19

125987721

A0T0R6

3–11

415

ATP synthase CF1 beta chain

Energy/ATP

−2.22

220977926

B8BT70

3–11

847

Oxidoreductase

Carbohydrate metabolism

−2.28

220977307

B8BT02

4–7

524

Aspartate aminotransferase

Nitrogen metabolism

−2.29

220977307

B8BT02

4–7

226

Aspartate aminotransferase

Nitrogen metabolism

−2.56

209586260

B5YN92

3–11

848

Phosphoglycerate kinase (BLAST)

Photosynthesis

−2.66

220972213

B8C6C6

3–11

897

Mitochondrial ATPase, inner membrane

Energy/ATP

−3.43

  1. The proteins highlighted in this study were selected stringently by combining different criteria: the highest confident peptide spectral matches obtained by mass spectrometry, and by matching experimental isoelectric points, and molecular masses to theoretical values.