Protein Columns: /Documentation/Archive/20.7

Protein Column	Column Abbrev	Description
Protein		The name of the sequence from the protein database.
SequenceMass		The mass of the sequence calculated by adding the masses of its amino acids.
Peptides	PP Peps	The number of filtered peptides in the run that were matched to this sequence.
UniquePeptides	PP Unique	The number of unique filtered peptides in the run that were matched to this sequence.
AACoverage		The percent of the amino acid sequence covered by the matched, filtered peptides.
BestName		A best name, either an accession number or descriptive word, for the identified protein.
BestGeneName		The most useful gene name associated with the identified protein.
Description		Short description of the protein’s nature and function.
GroupNumber	Group	A group number assigned to the ProteinProphet group.
GroupProbability	Prob	ProteinProphet probability assigned to the protein group.
PctSpectrumIds	Spectrum Ids	Percentage of spectrum identifications belonging to this protein entry. As a semi-quantitative measure, larger numbers reflects higher abundance.
ErrorRate		The error rate associated with the ProteinProphet probability for the group.
ProteinProbability	Prob	ProteinProphet probability assigned to the protein(s).
FirstProtein		ProteinProphet entries can be composed of one or more indistinguishable proteins and are reflected as a protein group. This column represents the protein identifier, from the protein sequence database, for the first protein in a protein group.
FirstDescription		Protein description of the FirstProtein.
FirstGeneName		Gene name, if available, associated with the FirstProtein.
FirstBestName		The best protein name associated with the FirstProtein. This name may come from another protein database file.
RatioMean	L2H Mean	The light-to-heavy protein ratio generated from the mean of the underlying peptide ratios.
RatioStandardDev	L2H StdDev	The standard deviation of the light-to-heavy protein ratio.
RatioNumberPeptides	Ratio Peps	The number of quantified peptides contributing to the protein ratio.
Heavy2LightRatioMean	H2L Mean	The heavy-to-light protein ratio generated from the mean of the underlying peptide ratios.
Heavy2LightRatioStandardDev	H2L StdDev	The heavy-to-light standard deviation of the protein ratio.