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Table 2 A fragment of the comparison matrix

From: Label-free peptide profiling of Orbitrap™ full mass spectra

Mass MH+ ms2 triggered ms2 sequenced msInspect Peptrix Progenesis™ Sieve™
  (for fragmentation) (proteins found) Peak intensity (× 103) Sum peak intensities (× 103) Peak intensities(× 103) Peak intensities (× 103)
1741.6671 0 0 0 0 0 0
1741.7007 0 0 473 0 0 652985
1741.7447 1 1 30698 73319 133568 73185
1741.7638 1 0 277640 995497 107051 256383
1741.8094 1 0 3816 222852 14080 0
1741.8397 1 0 41071 146578 58422 78170
1741.8707 1 1 26311 92368 74067 2169410
1741.9122 0 0 3738 19527 6889 0
1741.9355 1 0 202031 95472 564808 273129
1741.9807 0 0 0 0 0 0
1742.008 0 0 1547 0 0 0
1742.0503 0 0 0 0 0 0
1742.0852 0 0 0 0 0 0
1742.12 0 0 0 0 0 0
1742.1472 0 0 0 0 0 101289
1742.193 0 0 0 0 0 45510
1742.2281 0 0 0 2691996 0 0
1742.2594 0 0 0 0 0 0
1742.2909 0 0 1407 69951 0 70092
1742.3208 0 0 0 0 0 3561843
1742.3641 0 0 2474 56134 0 106378
1742.3994 0 0 424 0 0 0
1742.4336 0 0 0 0 0 0
1742.4685 0 0 0 0 0 0
1742.5033 0 0 0 0 0 0
1742.5382 0 0 0 0 0 0
1742.573 0 0 0 0 0 0
1742.6079 0 0 0 0 0 0
1742.6389 0 0 0 0 621012 0
1742.6776 0 0 0 0 0 0
1742.7124 0 0 0 0 0 0
1742.7512 0 0 460 17303 0 60179
1742.7796 0 0 242 5676 0 467398
1742.8157 1 0 1002 67850 82288 43121
1742.8449 0 0 15846 10995 5417 56105
1742.8839 1 1 582 102837 26609 27587
1742.9085 0 0 15849 120678 69898 54135
1742.95 0 0 0 25553 8075 263965
1742.9913 0 0 0 0 0 0
1743.0287 0 0 1005 0 0 0
1743.0563 0 0 0 4248221 0 0
1743.0959 0 0 0 0 0 0
1743.1307 0 0 0 0 0 0
  1. A total of 4 peak-lists containing masses and intensities (1 for each matrix), together with one list of MS2 triggered masses and one list of the MS2 fragmented masses where sequencing succeeded were matched plus or minus 10 ppm with an artificial reference list or grid of masses with fixed distances of 20 ppm. The comparison matrix contains unoccupied space of MH+ mass values, roughly separated by the lines. The triple charged peptide mass 581.69 Da, which when recalculated to the MH+ value of 1743.0515 Da is only detected by Peptrix.