{# #}
Column Type Explaination
agg_count integer how many peptides were aggregated together from the pep.xml file
assumed_charge integer Precursor ion charge used for search
calc_neutral_pep_mass double theoretical mass
protein_descr string single concatenated string of protein descriptions — used for text search — (see protein_descr)
eics float[] flat array of a matrix of [isoMax+2,rt,2] with isoMax+2 hits of retention time,intensity
eics_shape integer[] actual shape of eics matrix (Since the parquet storage only allows 1D arrays)
enrichment double Average Enrichment found from NNLS fitting
fail integer bit wise OR of failures and warnings of the envelope fit (0 means no problem!)
heavyCor double pearson R statistic between heavy distribution and the theoretical distribution
heavyCor2 double pearson R statistic between isotopeEnvelopes and the theoretical distribution
isLabelledRun boolean search hit was in a labelled run
is_decoy boolean if protein has a DECOY_ prefix
isotopeEnvelopes float[] Experimental Intensities from EIC Spectrum Data
isotopeRegressions float[] Explain?
labelledElementCount integer number of labelled atoms of this type on this peptide
labelledEnvelopes float[] weight calculated from NNLS fitting
maxIso integer maximum number of heavy isotopes considered for this peptide
modcol string string form of the modifications of this peptide '{mass1}@{position1}:{mass2}@{position2}...'. The mass is formatted to 3 decimal places
modifications
ColumnTypeExplaination
monoDelta double mass difference of static or variable modification
monoMass double modified mass of aminoacid
position integer modified aminoacid position in peptide [ranging from 1 to peptide length]
list of modifications
monoFitParams float[] array of 4 gaussian curve fitted params: mu, sigma, scale, baseline
mz double calc_neutral_pep_mass/assumed_charge + H+
mzranges float[] array of [maxIso+2,2] mz min and max for each isotope of the peptide
num_missed_cleavages integer Number of sample enzyme cleavage sites internal to peptide
observed_mz double precursor_neutral_mass/assumed_charge + H+
peptide string the peptide as amino acid string e.g. FYLQPLPPAEAAAR
peptideprophet_probability double Peptide Prophet probability
precursor_neutral_mass double observed mass
protein_descr string[] list of decriptions of the proteins (from some database)
proteins string[] list of protein IDs
relativeIsotopeAbundance double see here
retention_time_sec double retention time associated with start_scan
run string run associated with this search hit
result_index integer relates back to index of original pepxml (for debugging)