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Table 1 Human CSF proteins displaying differential expression in AD patients

From: Differentially charged isoforms of apolipoprotein E from human blood are potential biomarkers of Alzheimer’s disease

Spot number

Protein name/Protein ID/Uniprot Accession Number/RefSeq

33 N versus 33D

33 N versus 44D

N versus D

Molecular weight

pI

429

Serum albumin, Chain A; ALBU_HUMAN P02768/NP_000468.1

-1.29

-1.37

-1.33

69,366.68

5.92

P = 0.00034

541

Transferrin variant; Q53H26_HUMAN Q53H26 /IP|00022463

-1.53

-1.50

-1.51

77,079.85

6.68

P = 0.0011

575

alpha 1-B glycoprotein; A1BG_HUMAN P04217/NP_570602.2

-1.22

-1.18

-1.20

54,272.56

5.58

P = 0.0013

579

alpha 1-B glycoprotein; A1BG_HUMAN P04217/NP_570602.2

-1.31

-1.31

-1.31

54,272.56

5.56

P = 0.0015

614

Transferrin variant; Q53H26_HUMAN Q53H26/IP|00022463

+1.70

+1.64

+1.67

770,79.85

7.04

P = 0.0024

990

Apolipoprotein H (beta-2-glycoprotein I) APOH_HUMAN P02749/NP_000033.2

+1.67

+1.60

+1.63

38,298.16

8.34

P = 0.0021

1000

Tubulin beta-2A chain; TBB2A_HUMAN Q13885/NP_001060.1

+1.29

+1.73

+1.51

49,906.67

4.78

P = 0.0058

1008

Keratin, type II cytoskeletal 1; K2C1_HUMAN P04264/NP_006112.3

+2.94

+2.62

+2.77

66,038.73

8.15

P = 0.002

1017

alpha-1-antitrypsin (SerpinA1); A1AT_HUMAN P01009/NP_000286.3

+1.86

+2.26

+2.06

P = 0.0021

46,739.55

5.37

1118

Pigment epithelium-derived factor (SerpinF1); PEDF_HUMAN P36955/NP_002606.3

+1.54

+1.99

+1.77

46,342.30

5.97

P = 7.4E-05

1188

ALB protein (growth-inhibiting protein 20), Isoform 2; ALBU_HUMAN P02768/NP_000468.1

+1.26

+1.23

+1.24

47,360.49

5.97

P = 0.0065

1268

Glutamine synthetase; GLNA_HUMAN; P15104/NP_001028216.1

-1.38

-1.55

-1.46

42,064.46

6.43

P = 0.0025

1278

Creatine kinase B-type; KCRB_HUMAN; P12277/NP_001814.2

-1.46

-1.40

-1.43

42,644.28

5.34

P = 0.0077

1324

Fructose-bisphosphate aldolase A; ALDOA_HUMAN P04075/NP_000025.1

-1.49

-1.53

-1.51

39,420.02

8.30

P = 0.0074

1332

Aspartate aminotransferase, cytoplasmic; AATC_HUMAN; P17174/NP_002070.1

-1.28

-1.49

-1.38

46,247.51

6.53

P = 0.0099

1363

Aspartate aminotransferase, cytoplasmic; AATC_HUMAN; P17174/NP_002070.1

-1.27

-1.41

-1.33

46,247.51

6.50

P = 0.0003

1451

Glyceraldehyde-3-phosphate dehydrogenase G3P_HUMAN P04406/NP_002037.2

-2.05

-1.75

-1.87

36,042.22

8.57

P = 0.0002

1454

Glyceraldehyde-3-phosphate dehydrogenase G3P_HUMAN P04406/NP_002037.2

-1.45

-1.42

-1.44

36,042.22

8.59

P = 0.013

1469

Glyceraldehyde-3-phosphate dehydrogenase G3P_HUMAN P04406/NP_002037.2

-1.58

-1.52

-1.55

36,042.22

8.63

P = 0.00094

1470

Glyceraldehyde-3-phosphate dehydrogenase G3P_HUMAN P04406/NP_002037.2

-1.80

-1.72

-1.75

36,042.22

8.67

P = 0.0005

1472

Clusterin; Apolipoprotein J; Complement-associated protein SP-40; CLUS_HUMAN; P10909/NP_001164609.1

+2.01

+2.01

+2.01

50,062.56

5.89

P = 5.10E-05

1521

Apolipoprotein E4; APOE_HUMAN P02649/NP_000032.1

+2.14

+3.34

+2.74

36,154.08

5.65

P = 0.00023

1523

Clusterin; Apolipoprotein J; Complement associated protein SP-40; CLUS_HUMAN; P10909/NP_001164609.1

+1.78

+2.17

+1.97

50,062.56

5.89

P = 3.50E-06

1527

Apolipoprotein E4; APOE_HUMAN P02649/NP_000032.1

+2.02

+2.42

+2.22

36,154.08

5.65

P = 1.30E-05

1535

Complement component 4A; C4A; Q5JNX2_HUMAN; Q5JNX2/IP|00643525

+1.85

+1.94

+1.89

~3,5000

6.43

P = 7.10E-05

1554

Transthyretin; TTHY_HUMAN; P02766/NP_000362.1

+2.05

+2.58

+2.32

15,887.03

5.52

P = 0.00078

1779

Ig Kappa chain C region; IGKC; IGKC_HUMAN; P01834/IP|00909649

-1.98

-2.14

-2.06

11,608.86

5.58

P = 0.0061

1845

Prostaglandin-H2 D-isomerase; cerebrin-28; PTGDS_HUMAN; P41222/NP_000945.3

+1.45

+1.51

+1.48

21,028.82

7.66

P = 0.0077

1912

Apolipoprotein A-1; ApoA1; APOA1-HUMAN; P02647/NP_000030.1

-1.78

-1.84

-1.81

30,777.83

5.56

P = 0.0037

1982

Superoxide dismutase [Mn], mitochondrial; SODM_HUMAN; P04179/NP_000627.2

+1.66

+1.62

+1.64

24,722.09

8.35

P = 0.0011

2067

Apolipoprotein A-1; ApoA1; APOA1-HUMAN; P02647/NP_000030.1

-1.95

-2.09

-2.02

30,777.83

5.56

P = 7.40E-06

2068

Apolipoprotein A-1; ApoA1; APOA1-HUMAN; P02647/NP_000030.1

-2.25

-2.24

-2.24

30,777.83

5.56

P = 0.00035

  1. The spot number is assigned by default by the DeCyder 2D 7.0 software, and is indicated on the gel image (Figure 3B). The protein name and the protein ID are obtained from the protein database maintained at the Protein Information Resource server, Georgetown University [37].
  2. The Uniprot accession number and the RefSeq number are protein identifiers retrieved from the Uniprot database based on the protein identification achieved by using mass spectrometry data [38]. Changes in protein expression are expressed as the log of the ratios between the corresponding spots’ volumes, and are automatically calculated with DeCyder 2D.
  3. The protein’s isoelectric point (pI) and molecular weight (Mw) are associated with the protein ID in PIR [37].