Table 2 Statistics of PTM Site based on PTM types with the Top 10 ratio

Disulfide bond

1,750

1,230

0.703

Ubiquitination

34,507

21,824

0.633

Proteolytic Cleavage

1,569

987

0.629

Acetylation

11,612

6,760

0.582

Phosphorylation

355,203

203,830

0.574

Sumorylation

1,180

673

0.570

S-nitrosylation

1,286

695

0.540

N-linked Glycosylation

65,121

21,215

0.326

Methylation

6,166

1,761

0.286

Sulfation

8,614

2,433

0.282

O-linked Glycosylation

91,678

21,335

0.233

Other PTMs

20,696

7,670

0.371

Total

599,382

290,413

0.485