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Table 1 A summary of the spectra, unique peptides, and protein numbers

From: Unrestrictive identification of post-translational modifications in the urine proteome without enrichment

 

Software

#PSMs(Peptide Spectrum Match)

#Peptides

#Proteins

Whole urine

MODa

39,144

6,194

1,994

PEAKS 6

47,857

9,878

1,606a

PTMs

MODa

7,100

1,602

734

PEAKS 6

20,329

3,891

1,578

In vivo PTMs

MODa

433

169

85

PEAKS 6

880

254

182

Percentage of in vivo PTMs in whole urine (%)

MODa

1.106

2.728

4.263

PEAKS 6

1.839

2.571

11.333

  1. aIn PEAKS 6, a protein represents a group of proteins sharing all identified peptides.