Table 1. Description of the 25 mass spectrometry experiment data sets used in this work.

ID in [7]

Unique peptides

UP

FR

PTM-1

PRIDE ID

Chemical tag

pH range

S2

13223

3022

69

6496

PXD000065

-

4.4-4.65

S3

28079

4364

72

12113

PXD000065

-

3.7-4.9

S4

26417

4799

72

10973

PXD000065

-

3.7-4.9

S5

17849

3299

72

8228

PXD000065

-

4.0-4.25

S6

17114

3427

72

8314

PXD000065

-

4.2-4.45

S7

18154

2754

72

7867

PXD000065

-

3.7-4.05

S8

23594

1456

54

9887

PXD0006291

TMT10

3.0-10.0

S9

32843

2448

72

12521

PXD0006291

TMT10

3.7-4.9

S10

28428

2073

49

12088

PXD006291

TMT10

3.0-10.0

S11

18042

1626

72

7779

PXD006291

TMT10

3.7-4.9

S12

10922

415

24

4227

PXD010006

TMT10

3.0-10.0

S13

720

86

3

238

PXD010006

TMT10

2.5-3.7

S14

38161

2935

46

17293

PXD010006

TMT10

3.0-10.0

S15

12473

367

22

5520

PXD005410

TMT10

3.0-10.0

S16

61651

3784

65

29439

PXD005410

TMT10

3.0-10.0

S17

3821

74

9

1565

PXD005410

TMT10

2.5-3.7

S18

11238

83

72*

4925

PXD000065

iTRAQ8

3.7-4.9

S19

2679

172

18

996

PXD017201

TMT10

3.0-10.0

S20

2692

157

16

897

PXD017201

TMT10

3.0-10.0

S21

2787

186

18

973

PXD017201

TMT10

3.0-10.0

S22

2847

185

19

929

PXD017201

TMT10

3.0-10.0

S23

2686

159

16

933

PXD017201

TMT10

3.0-10.0

S24

24129

1637

31

10957

PXD006291

TMT10

6.0-9.0

S25

30125

2317

42

13612

PXD006291

TMT10

6.0-11.0

[13]

26473

16419

18

7595

PXD018450

-

-

Notes. UP – the number of unmodified peptides, for which the RT conversion to virtual HI was possible; FR – number of fractions in the sample for which there was sufficient data for conversion; * – all fractions were treated as a single fraction; PTM-1 – the number of peptides with a single PTM.