public static void TestFlashLfq()
{
// get the raw file paths
SpectraFileInfo raw = new SpectraFileInfo(Path.Combine(TestContext.CurrentContext.TestDirectory, @"sliced-raw.raw"), "a", 0, 0, 0);
SpectraFileInfo mzml = new SpectraFileInfo(Path.Combine(TestContext.CurrentContext.TestDirectory, @"sliced-mzml.mzml"), "a", 0, 1, 0);
// create some PSMs
var pg = new ProteinGroup("MyProtein", "gene", "org");
Identification id1 = new Identification(raw, "EGFQVADGPLYR", "EGFQVADGPLYR", 1350.65681, 94.12193, 2, new List <ProteinGroup> {
pg
});
Identification id2 = new Identification(raw, "EGFQVADGPLYR", "EGFQVADGPLYR", 1350.65681, 94.05811, 2, new List <ProteinGroup> {
pg
});
Identification id3 = new Identification(mzml, "EGFQVADGPLYR", "EGFQVADGPLYR", 1350.65681, 94.12193, 2, new List <ProteinGroup> {
pg
});
Identification id4 = new Identification(mzml, "EGFQVADGPLYR", "EGFQVADGPLYR", 1350.65681, 94.05811, 2, new List <ProteinGroup> {
pg
});
// create the FlashLFQ engine
FlashLFQEngine engine = new FlashLFQEngine(new List <Identification> {
id1, id2, id3, id4
}, normalize: true);
// run the engine
var results = engine.Run();
// check raw results
Assert.That(results.Peaks[raw].Count == 1);
Assert.That(results.Peaks[raw].First().Intensity > 0);
Assert.That(!results.Peaks[raw].First().IsMbrFeature);
Assert.That(results.PeptideBaseSequences["EGFQVADGPLYR"].GetIntensity(raw) > 0);
Assert.That(results.PeptideModifiedSequences["EGFQVADGPLYR"].GetIntensity(raw) > 0);
Assert.That(results.ProteinGroups["MyProtein"].GetIntensity(raw) > 0);
// check mzml results
Assert.That(results.Peaks[mzml].Count == 1);
Assert.That(results.Peaks[mzml].First().Intensity > 0);
Assert.That(!results.Peaks[mzml].First().IsMbrFeature);
Assert.That(results.PeptideBaseSequences["EGFQVADGPLYR"].GetIntensity(mzml) > 0);
Assert.That(results.PeptideModifiedSequences["EGFQVADGPLYR"].GetIntensity(mzml) > 0);
Assert.That(results.ProteinGroups["MyProtein"].GetIntensity(mzml) > 0);
// check that condition normalization worked
int int1 = (int)System.Math.Round(results.Peaks[mzml].First().Intensity, 0);
int int2 = (int)System.Math.Round(results.Peaks[raw].First().Intensity, 0);
Assert.That(int1 == int2);
// test peak output
results.WriteResults(
Path.Combine(TestContext.CurrentContext.TestDirectory, @"peaks.tsv"),
Path.Combine(TestContext.CurrentContext.TestDirectory, @"modSeq.tsv"),
Path.Combine(TestContext.CurrentContext.TestDirectory, @"baseSeq.tsv"),
Path.Combine(TestContext.CurrentContext.TestDirectory, @"protein.tsv"));
}
public static void TestPeakSplittingRight()
{
string fileToWrite = "myMzml.mzML";
string peptide = "PEPTIDE";
double intensity = 1e6;
Loaders.LoadElements(Path.Combine(TestContext.CurrentContext.TestDirectory, @"elements.dat"));
// generate mzml file
// 1 MS1 scan per peptide
MsDataScan[] scans = new MsDataScan[10];
double[] intensityMultipliers = { 1, 3, 5, 10, 5, 3, 1, 1, 3, 1 };
for (int s = 0; s < scans.Length; s++)
{
ChemicalFormula cf = new Proteomics.AminoAcidPolymer.Peptide(peptide).GetChemicalFormula();
IsotopicDistribution dist = IsotopicDistribution.GetDistribution(cf, 0.125, 1e-8);
double[] mz = dist.Masses.Select(v => v.ToMz(1)).ToArray();
double[] intensities = dist.Intensities.Select(v => v * intensity * intensityMultipliers[s]).ToArray();
// add the scan
scans[s] = new MsDataScan(massSpectrum: new MzSpectrum(mz, intensities, false), oneBasedScanNumber: s + 1, msnOrder: 1, isCentroid: true,
polarity: Polarity.Positive, retentionTime: 1.0 + s / 10.0, scanWindowRange: new MzRange(400, 1600), scanFilter: "f",
mzAnalyzer: MZAnalyzerType.Orbitrap, totalIonCurrent: intensities.Sum(), injectionTime: 1.0, noiseData: null, nativeId: "scan=" + (s + 1));
}
// write the .mzML
IO.MzML.MzmlMethods.CreateAndWriteMyMzmlWithCalibratedSpectra(new FakeMsDataFile(scans),
Path.Combine(TestContext.CurrentContext.TestDirectory, fileToWrite), false);
// set up spectra file info
SpectraFileInfo file1 = new SpectraFileInfo(Path.Combine(TestContext.CurrentContext.TestDirectory, fileToWrite), "", 0, 0, 0);
// create some PSMs
var pg = new ProteinGroup("MyProtein", "gene", "org");
Identification id1 = new Identification(file1, peptide, peptide,
new Proteomics.AminoAcidPolymer.Peptide(peptide).MonoisotopicMass, 1.3 + 0.001, 1, new List <ProteinGroup> {
pg
});
// create the FlashLFQ engine
FlashLFQEngine engine = new FlashLFQEngine(new List <Identification> {
id1
});
// run the engine
var results = engine.Run();
ChromatographicPeak peak = results.Peaks.First().Value.First();
Assert.That(peak.Apex.RetentionTime == 1.3);
Assert.That(peak.SplitRT == 1.6);
Assert.That(!peak.IsotopicEnvelopes.Any(p => p.RetentionTime > 1.6));
Assert.That(peak.IsotopicEnvelopes.Count == 6);
}
private void RunFlashLfq()
{
// read IDs
var ids = new List <Identification>();
foreach (var identFile in identFilesForDataGrid)
{
ids = ids.Concat(PsmReader.ReadPsms(identFile.FilePath, false, spectraFileInfo)).ToList();
}
// run FlashLFQ engine
try
{
flashLfqEngine = new FlashLFQEngine(
allIdentifications: ids,
normalize: flashLfqEngine.Normalize,
ppmTolerance: flashLfqEngine.PpmTolerance,
isotopeTolerancePpm: flashLfqEngine.IsotopePpmTolerance,
matchBetweenRuns: flashLfqEngine.MatchBetweenRuns,
matchBetweenRunsPpmTolerance: flashLfqEngine.MbrPpmTolerance,
integrate: flashLfqEngine.Integrate,
numIsotopesRequired: flashLfqEngine.NumIsotopesRequired,
idSpecificChargeState: flashLfqEngine.IdSpecificChargeState,
requireMonoisotopicMass: flashLfqEngine.RequireMonoisotopicMass,
silent: false,
optionalPeriodicTablePath: null,
maxMbrWindow: flashLfqEngine.MbrRtWindow,
advancedProteinQuant: flashLfqEngine.AdvancedProteinQuant);
results = flashLfqEngine.Run();
}
catch (Exception ex)
{
MessageBox.Show("FlashLFQ has crashed with the following error: " + ex.Message, "Error", MessageBoxButton.OK, MessageBoxImage.Hand);
}
// write output
try
{
OutputWriter.WriteOutput(Directory.GetParent(spectraFileInfo.First().FullFilePathWithExtension).FullName, results, outputFolderPath);
}
catch (Exception ex)
{
MessageBox.Show("Could not write FlashLFQ output: " + ex.Message, "Error", MessageBoxButton.OK, MessageBoxImage.Hand);
}
}
public static void TestFlashLFQ()
{
// get the raw file paths
RawFileInfo raw = new RawFileInfo(Path.Combine(TestContext.CurrentContext.TestDirectory, @"sliced-raw.raw"));
RawFileInfo mzml = new RawFileInfo(Path.Combine(TestContext.CurrentContext.TestDirectory, @"sliced-mzml.mzml"));
// create some PSMs
Identification id1 = new Identification(raw, "EGFQVADGPLYR", "EGFQVADGPLYR", 1350.65681, 94.12193, 2, new List <string> {
"MyProtein"
});
Identification id2 = new Identification(raw, "EGFQVADGPLYR", "EGFQVADGPLYR", 1350.65681, 94.05811, 2, new List <string> {
"MyProtein"
});
Identification id3 = new Identification(mzml, "EGFQVADGPLYR", "EGFQVADGPLYR", 1350.65681, 94.12193, 2, new List <string> {
"MyProtein"
});
Identification id4 = new Identification(mzml, "EGFQVADGPLYR", "EGFQVADGPLYR", 1350.65681, 94.05811, 2, new List <string> {
"MyProtein"
});
// create the FlashLFQ engine
FlashLFQEngine engine = new FlashLFQEngine(new List <Identification> {
id1, id2, id3, id4
});
// run the engine
var results = engine.Run();
// check raw results
Assert.That(results.peaks[raw].Count == 1);
Assert.That(results.peaks[raw].First().intensity > 0);
Assert.That(!results.peaks[raw].First().isMbrFeature);
Assert.That(results.peptideBaseSequences["EGFQVADGPLYR"].intensities[raw] > 0);
Assert.That(results.peptideModifiedSequences["EGFQVADGPLYR"].intensities[raw] > 0);
Assert.That(results.proteinGroups["MyProtein"].intensities[raw] > 0);
// check mzml results
Assert.That(results.peaks[mzml].Count == 1);
Assert.That(results.peaks[mzml].First().intensity > 0);
Assert.That(!results.peaks[mzml].First().isMbrFeature);
Assert.That(results.peptideBaseSequences["EGFQVADGPLYR"].intensities[mzml] > 0);
Assert.That(results.peptideModifiedSequences["EGFQVADGPLYR"].intensities[mzml] > 0);
Assert.That(results.proteinGroups["MyProtein"].intensities[mzml] > 0);
// test peak output
List <string> output = new List <string>()
{
FlashLFQ.ChromatographicPeak.TabSeparatedHeader
};
foreach (var peak in results.peaks.SelectMany(p => p.Value))
{
output.Add(peak.ToString());
}
Assert.That(output.Count == 3);
// test peptide base sequence output
output = new List <string>()
{
Peptide.TabSeparatedHeader
};
foreach (var pep in results.peptideBaseSequences)
{
output.Add(pep.Value.ToString());
}
Assert.That(output.Count == 2);
// test peptide mod sequence output
output = new List <string>()
{
Peptide.TabSeparatedHeader
};
foreach (var pep in results.peptideModifiedSequences)
{
output.Add(pep.Value.ToString());
}
Assert.That(output.Count == 2);
// test protein output
output = new List <string>()
{
ProteinGroup.TabSeparatedHeader
};
foreach (var protein in results.proteinGroups)
{
output.Add(protein.Value.ToString());
}
Assert.That(output.Count == 2);
}
public static void Main(string[] args)
{
// parameters
List <string> acceptedSpectrumFileFormats = new List <string> {
".RAW", ".MZML"
};
// setup parameters
var p = new FluentCommandLineParser <ApplicationArguments>();
p.SetupHelp("?", "help")
.Callback(text => Console.WriteLine(
"Valid arguments:\n" +
"--idt [string|identification file path (TSV format)]\n" +
"--rep [string|directory containing spectrum data files]\n" +
"--out [string|output directory]\n" +
"--ppm [double|ppm tolerance]\n" +
"--iso [double|isotopic distribution tolerance in ppm]\n" +
"--sil [bool|silent mode]\n" +
"--int [bool|integrate features]\n" +
"--mbr [bool|match between runs]\n" +
"--mrt [double|maximum MBR window in minutes]\n" +
"--chg [bool|use only precursor charge state]\n" +
"--rmm [bool|require observed monoisotopic mass peak]\n" +
"--nis [int|number of isotopes required to be observed]\n" +
"--nor [bool|normalize intensity results]\n" +
"--pro [bool|advanced protein quantification]\n"
));
p.Setup(arg => arg.PsmInputPath) // PSMs file
.As("idt").
Required();
p.Setup(arg => arg.RawFilesPath) // spectrum files
.As("rep").
Required();
p.Setup(arg => arg.OutputPath) // output path
.As("out");
p.Setup(arg => arg.PpmTolerance) // ppm tolerance
.As("ppm");
p.Setup(arg => arg.IsotopePpmTolerance) // isotope ppm tolerance
.As("iso");
p.Setup(arg => arg.Silent) // do not display output messages
.As("sil");
p.Setup(arg => arg.Integrate) // integrate
.As("int");
p.Setup(arg => arg.MatchBetweenRuns) // match between runs
.As("mbr");
p.Setup(arg => arg.MbrRtWindow) // maximum match-between-runs window in minutes
.As("mrt");
p.Setup(arg => arg.IdSpecificChargeState) // only use PSM-identified charge states
.As("chg");
p.Setup(arg => arg.RequireMonoisotopicMass) // require observation of monoisotopic peak
.As("rmm");
p.Setup(arg => arg.NumIsotopesRequired) // num of isotopes required
.As("nis");
p.Setup(arg => arg.Normalize) // normalize
.As("nor");
p.Setup(arg => arg.AdvancedProteinQuant) // advanced protein quant
.As("pro");
// args are OK - run FlashLFQ
if (!p.Parse(args).HasErrors&& p.Object.PsmInputPath != null)
{
if (!File.Exists(p.Object.PsmInputPath))
{
if (!p.Object.Silent)
{
Console.WriteLine("Could not locate identification file " + p.Object.PsmInputPath);
}
return;
}
if (!Directory.Exists(p.Object.RawFilesPath))
{
if (!p.Object.Silent)
{
Console.WriteLine("Could not locate folder " + p.Object.RawFilesPath);
}
return;
}
string assumedPathToExpDesign = Path.Combine(p.Object.RawFilesPath, "ExperimentalDesign.tsv");
if (p.Object.Normalize && !File.Exists(assumedPathToExpDesign))
{
if (!p.Object.Silent)
{
Console.WriteLine("Could not find experimental design file (required for normalization): " + assumedPathToExpDesign);
}
return;
}
// set up spectra file info
// get experimental design info for normalization
List <SpectraFileInfo> spectraFileInfos = new List <SpectraFileInfo>();
IEnumerable <string> files = Directory.GetFiles(p.Object.RawFilesPath)
.Where(f => acceptedSpectrumFileFormats.Contains(Path.GetExtension(f).ToUpperInvariant()));
if (p.Object.Normalize)
{
var experimentalDesign = File.ReadAllLines(assumedPathToExpDesign)
.ToDictionary(v => v.Split('\t')[0], v => v);
foreach (var file in files)
{
string filename = Path.GetFileNameWithoutExtension(file);
var expDesignForThisFile = experimentalDesign[filename];
var split = expDesignForThisFile.Split('\t');
string condition = split[1];
int biorep = int.Parse(split[2]);
int fraction = int.Parse(split[3]);
int techrep = int.Parse(split[4]);
// experimental design info passed in here for each spectra file
spectraFileInfos.Add(new SpectraFileInfo(fullFilePathWithExtension: file,
condition: condition,
biorep: biorep - 1,
fraction: fraction - 1,
techrep: techrep - 1));
}
}
else
{
foreach (var file in files)
{
spectraFileInfos.Add(new SpectraFileInfo(fullFilePathWithExtension: file,
condition: "",
biorep: 0,
fraction: 0,
techrep: 0));
}
}
// set up IDs
List <Identification> ids;
try
{
ids = PsmReader.ReadPsms(p.Object.PsmInputPath, p.Object.Silent, spectraFileInfos);
}
catch (Exception e)
{
Console.WriteLine("Problem reading PSMs: " + e.Message);
return;
}
if (ids.Any())
{
if (!p.Object.Silent)
{
Console.WriteLine("Setup is OK; read in " + ids.Count + " identifications; starting FlashLFQ engine");
}
// make engine with desired settings
FlashLFQEngine engine = new FlashLFQEngine(
allIdentifications: ids,
normalize: p.Object.Normalize,
ppmTolerance: p.Object.PpmTolerance,
isotopeTolerancePpm: p.Object.IsotopePpmTolerance,
matchBetweenRuns: p.Object.MatchBetweenRuns,
matchBetweenRunsPpmTolerance: p.Object.MbrPpmTolerance,
integrate: p.Object.Integrate,
numIsotopesRequired: p.Object.NumIsotopesRequired,
idSpecificChargeState: p.Object.IdSpecificChargeState,
requireMonoisotopicMass: p.Object.RequireMonoisotopicMass,
silent: p.Object.Silent,
optionalPeriodicTablePath: null,
maxMbrWindow: p.Object.MbrRtWindow,
advancedProteinQuant: p.Object.AdvancedProteinQuant);
// run
var results = engine.Run();
// output
OutputWriter.WriteOutput(p.Object.PsmInputPath, results, p.Object.OutputPath);
}
else
{
if (!p.Object.Silent)
{
Console.WriteLine("No peptide IDs for the specified spectra files were found! " +
"Check to make sure the spectra file names match between the ID file and the spectra files");
}
}
}
else if (p.Parse(args).HasErrors == false && p.Object.PsmInputPath == null)
{
// no errors - just requesting help?
}
else
{
Console.WriteLine("Invalid arguments - type \"--help\" for valid arguments");
}
}
public static void TestFlashLfqMatchBetweenRunsProteinQuant()
{
List <string> filesToWrite = new List <string> {
"mzml_1", "mzml_2"
};
List <string> pepSequences = new List <string> {
"PEPTIDE", "PEPTIDEV", "PEPTIDEVV", "PEPTIDEVVV", "PEPTIDEVVVV"
};
double intensity = 1e6;
double[] file1Rt = new double[] { 1.01, 1.02, 1.03, 1.04, 1.05 };
double[] file2Rt = new double[] { 1.015, 1.030, 1.036, 1.050, 1.065 };
Loaders.LoadElements(Path.Combine(TestContext.CurrentContext.TestDirectory, @"elements.dat"));
// generate mzml files (5 peptides each)
for (int f = 0; f < filesToWrite.Count; f++)
{
// 1 MS1 scan per peptide
MsDataScan[] scans = new MsDataScan[5];
for (int p = 0; p < pepSequences.Count; p++)
{
ChemicalFormula cf = new Proteomics.AminoAcidPolymer.Peptide(pepSequences[p]).GetChemicalFormula();
IsotopicDistribution dist = IsotopicDistribution.GetDistribution(cf, 0.125, 1e-8);
double[] mz = dist.Masses.Select(v => v.ToMz(1)).ToArray();
double[] intensities = dist.Intensities.Select(v => v * intensity).ToArray();
double rt;
if (f == 0)
{
rt = file1Rt[p];
}
else
{
rt = file2Rt[p];
}
// add the scan
scans[p] = new MsDataScan(massSpectrum: new MzSpectrum(mz, intensities, false), oneBasedScanNumber: p + 1, msnOrder: 1, isCentroid: true,
polarity: Polarity.Positive, retentionTime: rt, scanWindowRange: new MzRange(400, 1600), scanFilter: "f",
mzAnalyzer: MZAnalyzerType.Orbitrap, totalIonCurrent: intensities.Sum(), injectionTime: 1.0, noiseData: null, nativeId: "scan=" + (p + 1));
}
// write the .mzML
IO.MzML.MzmlMethods.CreateAndWriteMyMzmlWithCalibratedSpectra(new FakeMsDataFile(scans),
Path.Combine(TestContext.CurrentContext.TestDirectory, filesToWrite[f] + ".mzML"), false);
}
// set up spectra file info
SpectraFileInfo file1 = new SpectraFileInfo(Path.Combine(TestContext.CurrentContext.TestDirectory, filesToWrite[0] + ".mzML"), "a", 0, 0, 0);
SpectraFileInfo file2 = new SpectraFileInfo(Path.Combine(TestContext.CurrentContext.TestDirectory, filesToWrite[1] + ".mzML"), "a", 1, 0, 0);
// create some PSMs
var pg = new ProteinGroup("MyProtein", "gene", "org");
var myMbrProteinGroup = new ProteinGroup("MyMbrProtein", "MbrGene", "org");
Identification id1 = new Identification(file1, "PEPTIDE", "PEPTIDE",
new Proteomics.AminoAcidPolymer.Peptide("PEPTIDE").MonoisotopicMass, file1Rt[0] + 0.001, 1, new List <ProteinGroup> {
pg
});
Identification id2 = new Identification(file1, "PEPTIDEV", "PEPTIDEV",
new Proteomics.AminoAcidPolymer.Peptide("PEPTIDEV").MonoisotopicMass, file1Rt[1] + 0.001, 1, new List <ProteinGroup> {
pg
});
Identification id3 = new Identification(file1, "PEPTIDEVV", "PEPTIDEVV",
new Proteomics.AminoAcidPolymer.Peptide("PEPTIDEVV").MonoisotopicMass, file1Rt[2] + 0.001, 1, new List <ProteinGroup> {
myMbrProteinGroup
});
Identification id4 = new Identification(file1, "PEPTIDEVVV", "PEPTIDEVVV",
new Proteomics.AminoAcidPolymer.Peptide("PEPTIDEVVV").MonoisotopicMass, file1Rt[3] + 0.001, 1, new List <ProteinGroup> {
pg
});
Identification id5 = new Identification(file1, "PEPTIDEVVVV", "PEPTIDEVVVV",
new Proteomics.AminoAcidPolymer.Peptide("PEPTIDEVVVV").MonoisotopicMass, file1Rt[4] + 0.001, 1, new List <ProteinGroup> {
pg
});
Identification id6 = new Identification(file2, "PEPTIDE", "PEPTIDE",
new Proteomics.AminoAcidPolymer.Peptide("PEPTIDE").MonoisotopicMass, file2Rt[0] + 0.001, 1, new List <ProteinGroup> {
pg
});
Identification id7 = new Identification(file2, "PEPTIDEV", "PEPTIDEV",
new Proteomics.AminoAcidPolymer.Peptide("PEPTIDEV").MonoisotopicMass, file2Rt[1] + 0.001, 1, new List <ProteinGroup> {
pg
});
// missing ID 8 - MBR feature
Identification id9 = new Identification(file2, "PEPTIDEVVV", "PEPTIDEVVV",
new Proteomics.AminoAcidPolymer.Peptide("PEPTIDEVVV").MonoisotopicMass, file2Rt[3] + 0.001, 1, new List <ProteinGroup> {
pg
});
Identification id10 = new Identification(file2, "PEPTIDEVVVV", "PEPTIDEVVVV",
new Proteomics.AminoAcidPolymer.Peptide("PEPTIDEVVVV").MonoisotopicMass, file2Rt[4] + 0.001, 1, new List <ProteinGroup> {
pg
});
// test with top3 protein quant engine
FlashLFQEngine engine = new FlashLFQEngine(new List <Identification> {
id1, id2, id3, id4, id5, id6, id7, id9, id10
}, matchBetweenRuns: true);
var results = engine.Run();
Assert.That(results.ProteinGroups["MyMbrProtein"].GetIntensity(file1) > 0);
Assert.That(results.ProteinGroups["MyMbrProtein"].GetIntensity(file2) == 0);
// test with advanced protein quant engine
engine = new FlashLFQEngine(new List <Identification> {
id1, id2, id3, id4, id5, id6, id7, id9, id10
}, matchBetweenRuns: true, advancedProteinQuant: true);
results = engine.Run();
Assert.That(results.ProteinGroups["MyMbrProtein"].GetIntensity(file1) > 0);
Assert.That(results.ProteinGroups["MyMbrProtein"].GetIntensity(file2) == 0);
}
public static void TestFlashLfqAdvancedProteinQuant()
{
List <string> filesToWrite = new List <string> {
"mzml_1", "mzml_2"
};
List <string> pepSequences = new List <string> {
"PEPTIDE", "MYPEPTIDE", "VVVVVPEPTIDE"
};
double[,] amounts = new double[2, 3] {
{ 1000000, 1000000, 1000000 },
{ 2000000, 2000000, 900000 }
};
Loaders.LoadElements(Path.Combine(TestContext.CurrentContext.TestDirectory, @"elements.dat"));
// generate mzml files (3 peptides each)
for (int f = 0; f < filesToWrite.Count; f++)
{
// 1 MS1 scan per peptide
MsDataScan[] scans = new MsDataScan[3];
for (int p = 0; p < pepSequences.Count; p++)
{
ChemicalFormula cf = new Proteomics.AminoAcidPolymer.Peptide(pepSequences[p]).GetChemicalFormula();
IsotopicDistribution dist = IsotopicDistribution.GetDistribution(cf, 0.125, 1e-8);
double[] mz = dist.Masses.Select(v => v.ToMz(1)).ToArray();
double[] intensities = dist.Intensities.Select(v => v * amounts[f, p]).ToArray();
// add the scan
scans[p] = new MsDataScan(massSpectrum: new MzSpectrum(mz, intensities, false), oneBasedScanNumber: p + 1, msnOrder: 1, isCentroid: true,
polarity: Polarity.Positive, retentionTime: 1.0 + (p / 10.0), scanWindowRange: new MzRange(400, 1600), scanFilter: "f",
mzAnalyzer: MZAnalyzerType.Orbitrap, totalIonCurrent: intensities.Sum(), injectionTime: 1.0, noiseData: null, nativeId: "scan=" + (p + 1));
}
// write the .mzML
IO.MzML.MzmlMethods.CreateAndWriteMyMzmlWithCalibratedSpectra(new FakeMsDataFile(scans),
Path.Combine(TestContext.CurrentContext.TestDirectory, filesToWrite[f] + ".mzML"), false);
}
// set up spectra file info
SpectraFileInfo file1 = new SpectraFileInfo(Path.Combine(TestContext.CurrentContext.TestDirectory, filesToWrite[0] + ".mzML"), "a", 0, 0, 0);
SpectraFileInfo file2 = new SpectraFileInfo(Path.Combine(TestContext.CurrentContext.TestDirectory, filesToWrite[1] + ".mzML"), "a", 1, 0, 0);
// create some PSMs
var pg = new ProteinGroup("MyProtein", "gene", "org");
Identification id1 = new Identification(file1, "PEPTIDE", "PEPTIDE", 799.35996, 1.01, 1, new List <ProteinGroup> {
pg
});
Identification id2 = new Identification(file1, "MYPEPTIDE", "MYPEPTIDE", 1093.46377, 1.11, 1, new List <ProteinGroup> {
pg
});
Identification id3 = new Identification(file1, "VVVVVPEPTIDE", "VVVVVPEPTIDE", 1294.70203, 1.21, 1, new List <ProteinGroup> {
pg
});
Identification id4 = new Identification(file2, "PEPTIDE", "PEPTIDE", 799.35996, 1.01, 1, new List <ProteinGroup> {
pg
});
Identification id5 = new Identification(file2, "MYPEPTIDE", "MYPEPTIDE", 1093.46377, 1.11, 1, new List <ProteinGroup> {
pg
});
Identification id6 = new Identification(file2, "VVVVVPEPTIDE", "VVVVVPEPTIDE", 1294.70203, 1.21, 1, new List <ProteinGroup> {
pg
});
// create the FlashLFQ engine
FlashLFQEngine engine = new FlashLFQEngine(new List <Identification> {
id1, id2, id3, id4, id5, id6
}, normalize: false, advancedProteinQuant: true);
// run the engine
var results = engine.Run();
// third peptide should be low-weighted
// protein should be ~sum of first two peptide intensities (a little lower, because some smaller isotope peaks get skipped)
double file1ProteinIntensity = results.ProteinGroups["MyProtein"].GetIntensity(file1);
Assert.That(file1ProteinIntensity < 2e6);
Assert.That(file1ProteinIntensity > 1e6);
double file2ProteinIntensity = results.ProteinGroups["MyProtein"].GetIntensity(file2);
Assert.That(file2ProteinIntensity < 4e6);
Assert.That(file2ProteinIntensity > 3e6);
}
public static void TestFlashLfqMergeResults()
{
SpectraFileInfo rawA = new SpectraFileInfo(Path.Combine(TestContext.CurrentContext.TestDirectory, @"sliced-raw.raw"), "a", 0, 0, 0);
SpectraFileInfo mzmlA = new SpectraFileInfo(Path.Combine(TestContext.CurrentContext.TestDirectory, @"sliced-mzml.mzml"), "a", 0, 1, 0);
// create some PSMs
var pgA = new ProteinGroup("MyProtein", "gene", "org");
Identification id1A = new Identification(rawA, "EGFQVADGPLYR", "EGFQVADGPLYR", 1350.65681, 94.12193, 2, new List <ProteinGroup> {
pgA
});
Identification id2A = new Identification(rawA, "EGFQVADGPLYR", "EGFQVADGPLYR", 1350.65681, 94.05811, 2, new List <ProteinGroup> {
pgA
});
Identification id3A = new Identification(mzmlA, "EGFQVADGPLYR", "EGFQVADGPLYR", 1350.65681, 94.12193, 2, new List <ProteinGroup> {
pgA
});
Identification id4A = new Identification(mzmlA, "EGFQVADGPLYR", "EGFQVADGPLYR", 1350.65681, 94.05811, 2, new List <ProteinGroup> {
pgA
});
// create the FlashLFQ engine
FlashLFQEngine engineA = new FlashLFQEngine(new List <Identification> {
id1A, id2A, id3A, id4A
});
// run the engine
var resultsA = engineA.Run();
SpectraFileInfo rawB = new SpectraFileInfo(Path.Combine(TestContext.CurrentContext.TestDirectory, @"sliced-raw.raw"), "b", 0, 0, 0);
SpectraFileInfo mzmlB = new SpectraFileInfo(Path.Combine(TestContext.CurrentContext.TestDirectory, @"sliced-mzml.mzml"), "b", 0, 1, 0);
// create some PSMs
var pgB = new ProteinGroup("MyProtein", "gene", "org");
Identification id1 = new Identification(rawB, "EGFQVADGPLYR", "EGFQVADGPLYR", 1350.65681, 94.12193, 2, new List <ProteinGroup> {
pgB
});
Identification id2 = new Identification(rawB, "EGFQVADGPLYR", "EGFQVADGPLYR", 1350.65681, 94.05811, 2, new List <ProteinGroup> {
pgB
});
Identification id3 = new Identification(mzmlB, "EGFQVADGPLYR", "EGFQVADGPLYR", 1350.65681, 94.12193, 2, new List <ProteinGroup> {
pgB
});
Identification id4 = new Identification(mzmlB, "EGFQVADGPLYR", "EGFQVADGPLYR", 1350.65681, 94.05811, 2, new List <ProteinGroup> {
pgB
});
// create the FlashLFQ engine
FlashLFQEngine engineB = new FlashLFQEngine(new List <Identification> {
id1, id2, id3, id4
});
// run the engine
var resultsB = engineB.Run();
resultsA.MergeResultsWith(resultsB);
Assert.AreEqual(4, resultsA.Peaks.Count);
Assert.AreEqual(1, resultsA.PeptideBaseSequences.Count);
Assert.AreEqual(1, resultsA.PeptideModifiedSequences.Count);
Assert.AreEqual(1, resultsA.ProteinGroups.Count);
Assert.AreEqual(4, resultsA.SpectraFiles.Count);
}
