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. 2014 Feb 16;13(4):1823–1832. doi: 10.1021/pr401090d

Table 1. Comparison of SEQUEST and OMSSA Parameter Settings.

    OMSSA
  SEQUEST 0 1 2 3 4
max missed cleavage sites 1 1 1 1 1 1
precursor mass tolerance (Da) 3.0 3.0 1.5 2.0 1.5 1.5
fragment mass tolerance (Da) 1.0 1.0 0.5 0.8 0.5 1.0
precursor ion search type mono avg avg avg mono avg
fragment ion search type mono mono mono avg mono mono
mass tolerance charge scaling N/A none none none none linear