PSM level filters

This page shows an overview of filters, which could be applied to PSM level filtering. These may be used for exporting, but also for the protein inference.

Most of these filters are applicable for PSMs and PSM sets.

For score filtering, see Score Filters.

filter	short	type	explanation
Charge	charge_filter	numeric
Delta mass	delta_mass_filter	numeric	filters against a mass shift from measured against theoretical mass
delta PPM	delta_ppm_filter	numeric	filters against a mass shift from measured against theoretical mass in PPM
m/z	mz_filter	numeric
number of accessions	nr_accessions_per_psm_filter	numeric	filters against the number of different accessions of a PSM
number of PSMs	nr_psms_per_psm_set_filter	numeric	filters against the number of PSMs in a PSM set
Accessions	psm_accessions_filter	literal_list	filters against the accessions in the list of accessions
Description	psm_description_filter	literal_list	filters against the description in the list of descriptions
File names	psm_file_list_filter	literal_list	filters against the file names, the PSMs are in
Missed cleavages	psm_missed_cleavages_filter	numerical
Modifications	psm_modifications_filter	modification
Rank	psm_rank_filter	numerical	filters against the rank, which must be calculated before
Sequence	psm_sequence_filter	literal	filters against the amino acid sequence
Unique	psm_unique_filter	boolean	a PSM is considered "unique", if it has only one accession in the database
Source ID	source_id_filter	literal	filters against the source ID, not each search engine and peak file combination return valid source IDs!