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Table 6 For MsPI 1, Mascot 1 and Piums the mass tolerance was set to 0.3 Da; in the other cases it was set to 100 ppm. For MsPI 1, MsPI 2 and MsPI 3, score 1, 2 and 3 were respectively used with uniform distribution. For each band the position of the "true" protein in the significant candidate list, the length of that list either using or not using the knowledge about the MW of the band, the MW and the pI of the "true" protein, the number of matching masses and the sequence coverage are reported.

From: A Perl procedure for protein identification by Peptide Mass Fingerprinting

Gel band (#)

Software tool

Rank (# significant proteins without MW filtering)

Rank (# significant proteins with MW filtering)

MW (Da)

pI

Matches (#)

Coverage (%)

1

MsPI 1

2 (2)

1 (1)

123852

5.31

23

0.267

 

MsPI 2

7 (8)

1 (1)

123852

5.31

23

0.270

 

MsPI 3

2 (2)

1 (1)

123852

5.31

23

0.267

 

Mascot 1

1 (1)

1 (1)

124292

5.50

23

0.250

 

Mascot 2

1 (1)

1 (1)

124292

5.50

23

0.250

 

Piums

-

- (-)

-

-

21

0.242

2

MsPI 1

1 (2)

1 (1)

191785

5.32

36

0.252

 

MsPI 2

1 (4)

1 (1)

191785

5.32

35

0.252

 

MsPI 3

1 (2)

1 (1)

191785

5.32

35

0.252

 

Mascot 1

1 (1)

1 (1)

193260

5.48

36

0.250

 

Mascot 2

1 (3)

1 (1)

193260

5.48

35

0.250

 

Piums

1 (1)

-

-

-

36

0.257

3

MsPI 1

2 (8)

1 (1)

104981

5.08

21

0.245

 

MsPI 2

- (4)

- (-)

104981

5.08

21

0.245

 

MsPI 3

2 (4)

1 (1)

104981

5.08

21

0.245

 

Mascot 1

1 (2)

1 (1)

105245

5.27

21

0.240

 

Mascot 2

1 (6)

1 (2)

105245

5.27

21

0.240

 

Piums

- (-)

-

-

-

19

0.254

4

MsPI 1

2 (4)

1 (1)

95382

6.38

20

0.286

 

MsPI 2

1 (5)

1 (1)

95382

6.38

20

0.286

 

MsPI 3

1 (6)

1 (2)

95382

6.38

20

0.286

 

Mascot 1

1 (1)

1 (1)

96246

6.41

22

0.320

 

Mascot 2

1 (1)

1 (1)

96246

6.41

22

0.320

 

Piums

- (-)

-

-

-

19

0.341

5

MsPI 1

2 (8)

2 (3)

84351

4.70

28

0.418

 

MsPI 2

3 (3)

2 (2)

84351

4.70

28

0.418

 

MsPI 3

2 (12)

2 (3)

84351

4.70

28

0.418

 

Mascot 1

1 (2)

1 (2)

83554

4.97

35

0.480

 

Mascot 2

1 (3)

1 (2)

83554

4.97

34

0.480

 

Piums

1 (1)

-

-

-

28

0.364

6

MsPI 1

2 (8)

1 (1)

67900

7.37

24

0.515

 

MsPI 2

- (1)

- (-)

67900

7.37

23

0.509

 

MsPI 3

1 (6)

1 (1)

67900

7.37

23

0.509

 

Mascot 1

1 (2)

1 (1)

68519

7.58

24

0.510

 

Mascot 2

1 (4)

1 (2)

68519

7.58

23

0.500

 

Piums

- (-)

-

-

-

19

0.446

7

MsPI 1

1 (3)

1 (1)

53146

4.82

21

0.468

 

MsPI 2

1 (2)

1 (1)

53146

4.82

21

0.468

 

MsPI 3

1 (2)

1 (1)

53146

4.82

21

0.468

 

Mascot 1

1 (1)

1 (1)

53676

5.06

21

0.500

 

Mascot 2

1 (3)

1 (1)

53676

5.06

21

0.500

 

Piums

- (-)

-

-

-

16

0.413

8

MsPI 1

- (2)

- (-)

49674

4.53

8

0.232

 

MsPI 2

- (1)

- (-)

49674

4.53

8

0.232

 

MsPI 3

- (1)

- (-)

49674

4.53

8

0.232

 

Mascot 1

- (-)

- (-)

50095

4.78

8

0.230

 

Mascot 2

- (-)

- (-)

50095

4.78

8

0.230

 

Piums

- (-)

-

-

-

8

0.232

9

MsPI 1

1 (4)

1 (1)

45982

9.79

31

0.784

 

MsPI 2

1 (4)

1 (1)

45982

9.79

32

0.787

 

MsPI 3

1 (5)

1 (1)

45982

9.79

32

0.787

 

Mascot 1

1 (1)

1 (1)

46180

9.45

31

0.730

 

Mascot 2

1 (1)

1 (1)

46180

9.45

31

0.730

 

Piums

1 (1)

-

-

-

27

0.715

10

MsPI 1

1 (9)

1 (2)

41611

5.10

13

0.349

 

MsPI 2

2 (5)

2 (2)

41611

5.10

13

0.379

 

MsPI 3

1 (6)

1 (4)

41611

5.10

13

0.379

 

Mascot 1

1 (4)

1 (4)

42052

5.29

13

0.370

 

Mascot 2

1 (4)

1 (4)

42052

5.29

13

0.370

 

Piums

2 (2)

-

-

-

13

0.380