MSFraggerAdapter

Peptide Identification with MSFragger.

Important note:

The Regents of the University of Michigan ("Michigan") grants us permission to redistribute

the MS Fragger application developed by Michigan within the OpenMS Pipeline and make available

for use on related service offerings supported by the University of Tubingen and the Center for

Integrative Bioinformatics.

Per the license agreement the use of the pipeline and associated materials is for academic

research, non-commercial or educational purposes. Any commercial use inquiries

must be directed to the University of Michigan Technology Transfer Office at

techtransfer@umich.edu. All right title and interest in MS Fragger shall remain with the

University of Michigan.

For details, please see the supplied license file or

https://raw.githubusercontent.com/OpenMS/THIRDPARTY/master/All/MSFragger/License.txt

Web Documentation for MSFraggerAdapter

Options

version
Version of the tool that generated this parameters file.
license
Set to yes, if you have read and agreed to the MSFragger license terms.
java_heapmemory
Maximum Java heap size (in MB)
reindex
Recalculate peptide to protein association using OpenMS. Annotates target-decoy information.
log
Name of log file (created only when specified)
debug
Sets the debug level
threads
Sets the number of threads allowed to be used by the TOPP tool
no_progress
Disables progress logging to command line
force
Overrides tool-specific checks
test
Enables the test mode (needed for internal use only)
precursor_mass_tolerance_lower
Lower precursor mass tolerance
precursor_mass_tolerance_upper
Upper precursor mass tolerance
precursor_mass_unit
Unit of precursor mass tolerance
precursor_true_tolerance
True precursor mass tolerance (window is +/- this value). Used for tie breaker of results (in spectrally ambiguous cases) and zero bin boosting in open searches (0 disables these features). This option is STRONGLY recommended for open searches.
precursor_true_unit
Unit of precursor true tolerance
fragment_mass_tolerance
Fragment mass tolerance (window is +/- this value)
fragment_mass_unit
Unit of fragment mass tolerance
isotope_error
Isotope correction for MS/MS events triggered on isotopic peaks. Should be set to 0 (disabled) for open search or 0/1/2 for correction of narrow window searches. Shifts the precursor mass window to multiples of this value multiplied by the mass of C13-C12.
search_enzyme_name
Name of the enzyme to be written to the pepXML file
search_enzyme_cutafter
Residues after which the enzyme cuts (specified as a string of amino acids)
search_enzyme_nocutbefore
Residues that the enzyme will not cut before
num_enzyme_termini
Number of enzyme termini (non-enzymatic (0), semi (1), fully (2)
allowed_missed_cleavage
Allowed number of missed cleavages
min_length
Minimum length of peptides to be generated during in-silico digestion
max_length
Maximum length of peptides to be generated during in-silico digestion
mass_range_min
Min mass of peptides to be generated (Da)
mass_range_max
Max mass of peptides to be generated (Da)
clip_nterm_m
Specifies the trimming of a protein N-terminal methionine as a variable modification
masses
Masses for variable modifications
syntaxes
Syntax Strings for variable modifications
unimod
Variable modifications in unimod syntax, is added to mass+syntax varmod list
enable_common
Enable common variable modifications (15.9949 M and 42.0106 [^)
not_allow_multiple_variable_mods_on_residue
Do not allow any one amino acid to be modified by multiple variable modifications
max_variable_mods_per_peptide
Maximum total number of variable modifications per peptide
max_variable_mods_combinations
Maximum allowed number of modified variably modified peptides from each peptide sequence, (maximum of 65534). If a greater number than the maximum is generated, only the unmodified peptide is considered
minimum_peaks
Minimum number of peaks in experimental spectrum for matching
use_topn_peaks
Pre-process experimental spectrum to only use top N peaks
minimum_ratio
Filters out all peaks in experimental spectrum less intense than this multiple of the base peak intensity
clear_mz_range_min
Removes peaks in this m/z range prior to matching (minimum value). Useful for iTRAQ/TMT experiments (i.e. 0.0 150.0)
clear_mz_range_max
Removes peaks in this m/z range prior to matching (maximum value). Useful for iTRAQ/TMT experiments (i.e. 0.0 150.0)
max_fragment_charge
Maximum charge state for theoretical fragments to match
override_charge
Ignores precursor charge and uses charge state specified in precursor_charge range (parameters: spectrum:precursor_charge_min and spectrum:precursor_charge_max)
precursor_charge_min
Min charge of precursor charge range to consider. If specified, also spectrum:override_charge must be set)
precursor_charge_max
Max charge of precursor charge range to consider. If specified, also spectrum:override_charge must be set)
track_zero_topn
Track top N unmodified peptide results separately from main results internally for boosting features. Should be set to a number greater than search:output_report_topN if zero bin boosting is desired
zero_bin_accept_expect
Ranks a zero-bin hit above all non-zero-bin hit if it has expectation less than this value
zero_bin_mult_expect
Multiplies expect value of PSMs in the zero-bin during results ordering (set to less than 1 for boosting)
add_topn_complementary
Inserts complementary ions corresponding to the top N most intense fragments in each experimental spectrum. Useful for recovery of modified peptides near C-terminus in open search. 0 disables this option
min_fragments_modeling
Minimum number of matched peaks in PSM for inclusion in statistical modeling
min_matched_fragments
Minimum number of matched peaks for PSM to be reported. MSFragger recommends a minimum of 4 for narrow window searching and 6 for open searches
output_report_topn
Reports top N PSMs per input spectrum
output_max_expect
Suppresses reporting of PSM if top hit has expectation greater than this threshold
localize_delta_mass
Include fragment ions mass-shifted by unknown modifications (recommended for open and mass offset searches) (0 for OFF, 1 for ON)
add_cterm_peptide
Statically add mass in Da to C-terminal of peptide
add_nterm_peptide
Statically add mass in Da to N-terminal of peptide
add_cterm_protein
Statically add mass in Da to C-terminal of protein
add_nterm_protein
Statically add mass in Da to N-terminal of protein
add_G_glycine
Statically add mass to glycine
add_A_alanine
Statically add mass to alanine
add_S_serine
Statically add mass to serine
add_P_proline
Statically add mass to proline
add_V_valine
Statically add mass to valine
add_T_threonine
Statically add mass to threonine
add_C_cysteine
Statically add mass to cysteine
add_L_leucine
Statically add mass to leucine
add_I_isoleucine
Statically add mass to isoleucine
add_N_asparagine
Statically add mass to asparagine
add_D_aspartic_acid
Statically add mass to aspartic_acid
add_Q_glutamine
Statically add mass to glutamine
add_K_lysine
Statically add mass to lysine
add_E_glutamic_acid
Statically add mass to glutamic_acid
add_M_methionine
Statically add mass to methionine
add_H_histidine
Statically add mass to histidine
add_F_phenylalanine
Statically add mass to phenylalanine
add_R_arginine
Statically add mass to arginine
add_Y_tyrosine
Statically add mass to tyrosine
add_W_tryptophan
Statically add mass to tryptophan
unimod
Fixed modifications in unimod syntax if specific mass is unknown, e.g. Carbamidomethylation (C). When multiple different masses are given for one aminoacid this parameter (unimod) will have priority.
decoy_string
String that was appended (or prefixed - see 'decoy_string_position' flag below) to the accessions in the protein database to indicate decoy proteins. If empty (default), it's determined automatically (checking for common terms, both as prefix and suffix).
decoy_string_position
Is the 'decoy_string' prepended (prefix) or appended (suffix) to the protein accession? (ignored if decoy_string is empty)
missing_decoy_action
Action to take if NO peptide was assigned to a decoy protein (which indicates wrong database or decoy string): 'error' (exit with error, no output), 'warn' (exit with success, warning message), 'silent' (no action is taken, not even a warning)
write_protein_sequence
If set, the protein sequences are stored as well.
write_protein_description
If set, the protein description is stored as well.
keep_unreferenced_proteins
If set, protein hits which are not referenced by any peptide are kept.
unmatched_action
If peptide sequences cannot be matched to any protein: 1) raise an error; 2) warn (unmatched PepHits will miss target/decoy annotation with downstream problems); 3) remove the hit.
aaa_max
Maximal number of ambiguous amino acids (AAAs) allowed when matching to a protein database with AAAs. AAAs are 'B', 'J', 'Z' and 'X'.
mismatches_max
Maximal number of mismatched (mm) amino acids allowed when matching to a protein database. The required runtime is exponential in the number of mm's; apply with care. MM's are allowed in addition to AAA's.
IL_equivalent
Treat the isobaric amino acids isoleucine ('I') and leucine ('L') as equivalent (indistinguishable). Also occurrences of 'J' will be treated as 'I' thus avoiding ambiguous matching.
allow_nterm_protein_cleavage
Allow the protein N-terminus amino acid to clip.
name
Enzyme which determines valid cleavage sites - e.g. trypsin cleaves after lysine (K) or arginine (R), but not before proline (P). Default: deduce from input
specificity
Specificity of the enzyme. Default: deduce from input. 'full': both internal cleavage sites must match. 'semi': one of two internal cleavage sites must match. 'none': allow all peptide hits no matter their context (enzyme is irrelevant).

Input Ports

Icon
The Java executable. Usually Java is on the system PATH. If Java is not found, use this parameter to specify the full path to Java [,opt.]
Icon
Path to the MSFragger executable to use; may be empty if the executable is globally available. [,opt.]
Icon
Input File with specta for MSFragger [mzML,mzXML]
Icon
Protein FASTA database file path [FASTA,fasta,fa,fas]

Output Ports

Icon
MSFragger output file [idXML]
Icon
MSFragger optional output file [pepXML]

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Views

MSFraggerAdapter Std Output
The text sent to standard out during the execution of MSFraggerAdapter.
MSFraggerAdapter Error Output
The text sent to standard error during the execution of MSFraggerAdapter. (If it appears in gray, it's the output of a previously failing run which is preserved for your trouble shooting.)

Workflows

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Links

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