Result Files

CoMPaseD generates four result files:

Column Name

Description

Identifier

Protein identifier from the input FASTA file.

Sequence_Len[aa]

Length of the protein in amino acids.

Group

Group that the protein is assigned to during protease score calculation.

Random_Sampling_x

Protein abundance in replicate x of the Monte Carlo Simulation. A value of zero indicates that the protein is not expressed in the corresponding sampling replicate. One column for each replicate.

  • RandomSampling.tsv - A file listing all peptides identified during a CoMPaseD analysis. Since this file can become quite large, its output can be suppressed by setting the parameter Sampling_output to false in the parameter file.

Column Name

Description

index

Internal peptide index.

peptide

Peptide sequence.

protein

Protein identifier from the input FASTA file.

location

Position of the peptides first amino acid in the protein sequence.

MC

Number of missed cleavage sites in peptide.

Enzyme

Protease that generated this peptide. Identical peptides produced by different proteases are listed as separate entries.

Sequence_Len[aa]

Length of the protein in amino acids.

Group

Group that the protein is assigned to during protease score calculation.

Random_Sampling_x

Protein abundance in replicate x of the Monte Carlo Simulation. One column for each replicate.

DeepMSPep_prediction

Predicted detectability by DeepMSPeptide.

subset

String that combines enzyme and MC information.

ID

Internal peptide index.

sampling_x

Presence (1) or absence (0) of the peptide in replicate x of the Monte Carlo simulation. One column for each replicate.

  • CoMPaseD_results.tsv - This file contains detailed data necessary for calculating protease scores across Monte Carlo simulations. Filtered columns include values calculated with a requirement of at least two unique peptides per protein, whereas unfiltered columns also include proteins identified by a single unique peptide. The file can be visualised in the Results tab of the GUI.

Column Number

Column Name

Description

1

Protease combination

Protease combination used in this iteration.

2

Protein group

Group for that the score was calculated.

3

Random sampling

Sampling replicate for that the score was calulated.

4

Protease score (unfiltered)

Prediceted protease score for current protease combination and sampling replicate considering all identified peptides.

5

Protease score (filtered)

Prediceted protease score for current protease combination and sampling replicate considering all peptides that belong to proteins identified by at least two peptides.

6

Total proteins identified (unfiltered)

Number of identified proteins in the current protease combination and sampling replicate considering all identified peptides.

7

Total number of peptides identified (unfiltered)

Total number of identified peptides in the current protease combination and sampling replicate considering all identified peptides.

8

Mean number of peptides per protein identified (unfiltered)

Average number of identified peptides per proteins in the current protease combination and sampling replicate considering all peptides.

9

Median number of peptides per protein identified (unfiltered)

Median number of identified peptides per proteins in the current protease combination and sampling replicate considering all peptides.

10

Mean protein coverage (unfiltered)

Average protein sequence coverage in the current protease combination and sampling replicate considering all peptides.

11

Median protein coverage (unfiltered)

Median protein sequence coverage in the current protease combination and sampling replicate considering all peptides.

12

Min peptides per protein for filtering

Number of peptides required for a protein to be identified under filtered criteria. Fixed to two currently.

13

Total proteins identified (filtered)

Number of identified proteins in the current protease combination and sampling replicate considering all peptides that belong to proteins identified by at least two peptides.

14

Total number of peptides identified (filtered)

Total number of identified peptides in the current protease combination and sampling replicate considering all peptides that belong to proteins identified by at least two peptides.

15

Mean number of peptides per protein identified (filtered)

Average number of identified peptides per proteins in the current protease combination and sampling replicate considering all peptides that belong to proteins identified by at least two peptides.

16

Median number of peptides per protein identified (filtered)

Median number of identified peptides per proteins in the current protease combination and sampling replicate considering all peptides that belong to proteins identified by at least two peptides.

17

Mean protein coverage (filtered)

Average protein sequence coverage in the current protease combination and sampling replicate considering all peptides that belong to proteins identified by at least two peptides.

18

Median protein coverage (filtered)

Median protein sequence coverage in the current protease combination and sampling replicate considering all peptides that belong to proteins identified by at least two peptides.

19

Protease combination trypsin

Helper column stating that the following columns refer to the values observed for trypsin as protease (control condition).

20

Total proteins identified (unfiltered) trypsin

Number of identified proteins in the tryptic digestion and the current sampling replicate considering all identified peptides.

21

Total number of peptides identified (unfiltered) trypsin

Total number of identified peptides in the tryptic digestion and the current sampling replicate considering all identified peptides.

22

Mean number of peptides per protein identified (unfiltered) trypsin

Average number of identified peptides per proteins in the tryptic digestion and the current sampling replicate considering all peptides.

23

Median number of peptides per protein identified (unfiltered) trypsin

Median number of identified peptides per proteins in the tryptic digestion and the current sampling replicate considering all peptides.

24

Mean protein coverage (unfiltered) trypsin

Average protein sequence coverage in the tryptic digestion and the current sampling replicate considering all peptides.

25

Median protein coverage (unfiltered) trypsin

Median protein sequence coverage in the tryptic digestion and the current sampling replicate considering all peptides.

26

Min peptides per protein for filtering trypsin

Number of peptides required for a protein to be identified under filtered criteria in the tryptic digestion. Fixed to two currently.

27

Total proteins identified (filtered) trypsin

Number of identified proteins in the tryptic digestion and the current sampling replicate considering all peptides that belong to proteins identified by at least two peptides.

28

Total number of peptides identified (filtered) trypsin

Total number of identified peptides in the tryptic digestion and the current sampling replicate considering all peptides that belong to proteins identified by at least two peptides.

29

Mean number of peptides per protein identified (filtered) trypsin

Average number of identified peptides per proteins in the tryptic digestion and the current sampling replicate considering all peptides that belong to proteins identified by at least two peptides.

30

Median number of peptides per protein identified (filtered) trypsin

Median number of identified peptides per proteins in the tryptic digestion and the current sampling replicate considering all peptides that belong to proteins identified by at least two peptides.

31

Mean protein coverage (filtered) trypsin

Average protein sequence coverage in the tryptic digestion and the current sampling replicate considering all peptides that belong to proteins identified by at least two peptides.

32

Median protein coverage (filtered) trypsin

Median protein sequence coverage in the tryptic digestion and the current sampling replicate considering all peptides that belong to proteins identified by at least two peptides.

33

Protein ID ratio (unfiltered)

Ratio between columns 6 and 20

34

Protein ID ratio (filtered)

Ratio between columns 13 and 27

35

Protein ID weight

Weighting factor of the number of identified proteins during protease score calculation.

36

Peptide ID ratio (unfiltered)

Ratio between columns 7 and 21

37

Peptide ID ratio (filtered)

Ratio between columns 14 and 28

38

Peptide ID weight

Weighting factor of the number of identified peptides during protease score calculation.

39

Protein coverage ratio (unfiltered)

Ratio between columns 10 and 24

40

Protein coverage ratio (filtered)

Ratio between columns 17 and 31

41

Protein coverage weight

Weighting factor of the protein coverage during protease score calculation.

  • CoMPaseD_results_summary.tsv - This file summarises the predicted protease scores, including the average and standard deviation, for all protease combinations and protein groups. The values are provided unfiltered (i.e. considering all identified unique peptides) and filtered (i.e. considering only peptides for proteins that are identified by at leat two unique peptides).

Column Name

Description

Protease combination

Individual protease or combination of proteases for this row.

Protein group

Group for that the score was calculated.

Mean_score_unfiltered

Average protease score based on unfiltered data.

Protease SD_score_unfiltered

Standard deviation of the protease score between sampling replicates calculated from unfiltered data.

Mean_score_filtered

Average protease score based on filtered data.

Protease SD_score_filtered

Standard deviation of the protease score between sampling replicates calculated from filtered data.


ProteinAbundance.tsv

Identifier

Sequence_Len[aa]

Group

Random_sampling_1

Random_sampling_2

AL009126.3_prot_CAB11777.1_1

446

large_proteins

0.000497626

3.51E-05

AL009126.3_prot_CAB11777.1_2

378

large_proteins

0

0.002066499

AL009126.3_prot_CAB11777.1_3

71

medium_proteins

0

0.000109971

AL009126.3_prot_CAB11777.1_4

370

large_proteins

5.68E-06

0

AL009126.3_prot_CAB11777.1_5

81

medium_proteins

3.36E-05

0.000395656


RandomSampling.tsv

index

peptide

protein

location

MC

Enzyme

Identifier

Sequence_Len[aa]

Group

Random_sampling_1

Random_sampling_2

DeepMSPep_prediction

subset

ID

sampling_1

sampling_2

397

AALELLQVEYKELEVMDSPE

AL009126.3_prot_CAB15238.1_3421

111

5

glu-c

AL009126.3_prot_CAB15238.1_3421

745

large_proteins

1.17683e-05

2.80666e-05

0.546137

glu-c__5

397

0

1

1459

AEGKTVMLVSLDGEAAGLVAVADTLKDTSRKAVARLKE

AL009126.3_prot_CAB15355.2_3532

605

5

glu-c

AL009126.3_prot_CAB15355.2_3532

802

large_proteins

0.0002083

0.0

0.484481

glu-c__5

1459

0

0

2494

AGKALADYLLSKNLYFEVYTDDHLLSPFDGE

AL009126.3_prot_CAB15602.1_3775

84

5

glu-c

AL009126.3_prot_CAB15602.1_3775

286

large_proteins

0.000523

0.000129

0.815637

glu-c__5

2494

1

0

2751

AGYTPMLQQYLKLKAEHQDAFLFFRLGDFYEMFFED

AL009126.3_prot_CAB13577.2_1779

2

5

glu-c

AL009126.3_prot_CAB13577.2_1779

858

large_proteins

0.0001213

0.0

0.617249

glu-c__5

2751

0

0

2836

AHNVKTRNFHTQEALYVLEKEFGSELPYMLTENAE

AL009126.3_prot_CAB15641.1_3816

195

5

glu-c

AL009126.3_prot_CAB15641.1_3816

254

large_proteins

0.00051

0.004293

0.827224

glu-c__5

2836

0

1


CoMPaseD_results.tsv

Protease combination

Protein group

Random sampling

Protease score (unfiltered)

Protease score (filtered)

Total proteins identified (unfiltered)

Total number of peptides identified (unfiltered)

Mean number of peptides per protein identified (unfiltered)

Median number of peptides per protein identified (unfiltered)

Mean protein coverage (unfiltered)

Median protein coverage (unfiltered)

Min peptides per protein for filtering

Total proteins identified (filtered)

Total number of peptides identified (filtered)

Mean number of peptides per protein identified (filtered)

Median number of peptides per protein identified (filtered)

Mean protein coverage (filtered)

Median protein coverage (filtered)

Protease combination trypsin

Total proteins identified (unfiltered) trypsin

Total number of peptides identified (unfiltered) trypsin

Mean number of peptides per protein identified (unfiltered) trypsin

Median number of peptides per protein identified (unfiltered) trypsin

Mean protein coverage (unfiltered) trypsin

Median protein coverage (unfiltered) trypsin

Min peptides per protein for filtering trypsin

Total proteins identified (filtered) trypsin

Total number of peptides identified (filtered) trypsin

Mean number of peptides per protein identified (filtered) trypsin

Median number of peptides per protein identified (filtered) trypsin

Mean protein coverage (filtered) trypsin

Median protein coverage (filtered) trypsin

Protein ID ratio (unfiltered)

Protein ID ratio (filtered)

Protein ID weight

Peptide ID ratio (unfiltered)

Peptide ID ratio (filtered)

Peptide ID weight

Protein coverage ratio (unfiltered)

Protein coverage ratio (filtered)

Protein coverage weight

lysarginase

large_proteins

sampling_1

0.991033528

0.988085663

1741

9586

5.506031017

3

0.229539862

0.142857143

2

1157

9002

7.780466724

4

0.3100638

0.23566879

trypsin

1822

9584

5.260153677

2

0.225389713

0.141463415

2

1261

9023

7.155432197

4

0.294220951

0.224264706

0.955543359

0.917525773

1

1.000208681

0.997672614

1

1.01841321

1.053846772

1

lysarginase

large_proteins

sampling_2

0.991713591

0.988836114

1726

9650

5.590961761

3

0.230335557

0.147518687

2

1188

9112

7.67003367

4

0.301459803

0.223596148

trypsin

1767

9629

5.449349179

3

0.231181224

0.144615385

2

1218

9080

7.454844007

4

0.305178172

0.230672836

0.976796831

0.975369458

1

1.002180912

1.003524229

1

0.996341974

0.987815742

1

lysarginase

large_proteins

sampling_3

0.989773687

0.992397163

1739

9650

5.549166187

2

0.22425363

0.139534884

2

1165

9076

7.79055794

4

0.300496672

0.219298246

trypsin

1809

9627

5.32172471

2

0.222858461

0.134110787

2

1193

9011

7.553227158

4

0.302405791

0.227722772

0.961304588

0.976529757

1

1.002389114

1.007213406

1

1.006260337

0.993686897

1

lysarginase

large_proteins

sampling_4

0.998754169

0.994863905

1729

9620

5.563909774

3

0.229890039

0.144781145

2

1150

9041

7.86173913

4

0.309665507

0.235915328

trypsin

1755

9594

5.466666667

3

0.227948936

0.145922747

2

1193

9032

7.570829841

5

0.303453218

0.231343284

0.985185185

0.963956412

1

1.002710027

1.000996457

1

1.008515518

1.020471985

1

lysarginase

large_proteins

sampling_5

0.985180868

0.980941375

1745

9725

5.573065903

2

0.223660864

0.137870855

2

1160

9140

7.879310345

4

0.301024102

0.232362468

trypsin

1746

9699

5.554982818

3

0.234399096

0.145454545

2

1183

9136

7.7227388

4

0.312849496

0.232323232

0.999427262

0.980557904

1

1.002680689

1.000437828

1

0.954188252

0.962201012

1

lysarginase

large_proteins

sampling_6

0.986787078

0.990287818

1652

9647

5.839588378

3

0.227821016

0.150684932

2

1125

9120

8.106666667

4

0.301925487

0.232727273

trypsin

1750

9631

5.503428571

2.5

0.224190039

0.140801179

2

1171

9052

7.730145175

4

0.30092716

0.238095238

0.944

0.960717336

1

1.001661302

1.007512152

1

1.016195977

1.003317503

1


CoMPaseD_results_summary.tsv

Protease combination

Protein group

Mean_score_unfiltered

SD_score_unfiltered

Mean_score_filtered

SD_score_filtered

trypsin - lysarginase - glu-c - chymotrypsin - lys-c

large_proteins

2.354363188

0.008808405

2.458483168

0.012681445

trypsin - lysarginase - glu-c - lys-c

large_proteins

2.123887564

0.008527206

2.211297635

0.012756247

trypsin - lysarginase - chymotrypsin - lys-c

large_proteins

2.116116367

0.006825438

2.203260086

0.009988885

trypsin - glu-c - chymotrypsin - lys-c

large_proteins

2.111351133

0.007827643

2.198311019

0.010794093