示例#1
0
        private void Rescore(string msAlignFilePath, string outputFilePath)
        {
            var parser    = new TsvFileParser(msAlignFilePath);
            var sequences = parser.GetData("Peptide");
            var scanNums  = parser.GetData("Scan(s)").Select(s => Convert.ToInt32(s)).ToArray();
            var charges   = parser.GetData("Charge").Select(c => Convert.ToInt32(c)).ToArray();

            var rows    = parser.GetRows();
            var headers = parser.GetHeaders();

            using (var writer = new StreamWriter(outputFilePath))
            {
                writer.WriteLine("{0}\t{1}", string.Join("\t", headers), IcScores.GetScoreNames());
                for (var i = 0; i < parser.NumData; i++)
                {
                    var row    = rows[i];
                    var seqStr = SimpleStringProcessing.GetStringBetweenDots(sequences[i]);
                    if (seqStr == null || seqStr.Contains("("))
                    {
                        continue;                                         //TODO: currently ignore ids with modifications
                    }
                    var composition = AASet.GetComposition(seqStr);
                    //var sequence = new Sequence(seqStr, AASet);
                    //if (sequence == null)
                    //{
                    //    Console.WriteLine("Ignore illegal sequence: {0}", seqStr);
                    //    continue;
                    //}
                    var charge  = charges[i];
                    var scanNum = scanNums[i];

                    var scores = _topDownScorer.GetScores(AminoAcid.ProteinNTerm, seqStr, AminoAcid.ProteinCTerm, composition, charge, scanNum);
                    if (scores == null)
                    {
                        continue;
                    }

                    writer.WriteLine("{0}\t{1}", row, scores);
                }
            }
        }
示例#2
0
        public void TestPrSm()
        {
            var methodName = MethodBase.GetCurrentMethod().Name;

            TestUtils.ShowStarting(methodName);

            //const string specFilePath = @"C:\cygwin\home\kims336\Data\TopDownYufeng\raw\yufeng_column_test2.raw";
            //const string annotation =
            //    "_.MKTKLSVLSAAMLAATLTMMPAVSQAAIPQSVEGQSIPSLAPMLERTTPAVVSVAVSGTHVSKQRVPDVFRYFFGPNAPQEQVQERPFRGLGSGVIIDADKGYIVTNNHVIDGADDIQVG" +
            //    "LHDGREVKAKLIGTDSESDIALLQIEAKNLVAIKTSDSDELRVGDFAVAIGNPFGLGQTV" +
            //    "TSGIVSALGRSGLGIEMLENFIQTDAAINSGNSGGALVNLKGELIGINTAIVAPNGGNVG" +
            //    "IGFAIPANMVKNLIAQIAEHGEVRRGVLGIAGRDLDSQLAQGFGLDTQHGGFVNEVSAGS" +
            //    "AAEKAGIKAGDIIVSVDGRAIKSFQELRAKVATMGAGAKVELGLIRDGDKKTVNVTLGEA" +
            //    "NQTTEKAAGAVHPMLQGASLENASKGVEITDVAQGSPAAMSGLQKGDLIVGINRTAVKDL" +
            //    "KSLKELLKDQEGAVALKIVRGKSMLYLVLR._";
            //var aaSet = new AminoAcidSet();

            //const int charge = 60;
            //const int ms2ScanNum = 46661;

            const string specFilePath = @"D:\Research\Data\Jon\AH_SF_mouseliver_3-1_Intact_2_6Feb14_Bane_PL011402.raw";

            if (!File.Exists(specFilePath))
            {
                Assert.Ignore(@"Skipping test {0} since file not found: {1}", methodName, specFilePath);
            }

            const int    ms2ScanNum = 19011;
            const int    charge     = 7;
            const string annotation = "_.SKVSFKITLTSDPRLPYKVLSVPESTPFTAVLKFAAEEFKVPAATSAIITNDGIGINPAQTAGNVFLKHGSELRIIPRDRVGSC._";

            var acetylN    = new SearchModification(Modification.Acetylation, '*', SequenceLocation.ProteinNTerm, true);
            var modVal     = Modification.RegisterAndGetModification("AddVal", new Composition(5, 9, 1, 1, 0));
            var searchMods = AminoAcid.StandardAminoAcidCharacters.Select(residue => new SearchModification(modVal, residue, SequenceLocation.Everywhere, false)).ToList();

            searchMods.Add(acetylN);
            const int numMaxModsPerProtein = 1;
            var       aaSet = new AminoAcidSet(searchMods, numMaxModsPerProtein);

            var graph = SequenceGraph.CreateGraph(aaSet, annotation);

            Console.WriteLine("NumProteoforms: " + graph.GetNumProteoformCompositions());

            var run       = InMemoryLcMsRun.GetLcMsRun(specFilePath, 1.4826, 1.4826);
            var ms2Scorer = new ProductScorerBasedOnDeconvolutedSpectra(run, 1, 15);

            ms2Scorer.GetScorer(ms2ScanNum);
            var scorer = ms2Scorer.GetMs2Scorer(ms2ScanNum);

            Assert.NotNull(scorer, "Scorer is null!");

            for (var i = 0; i < graph.GetNumProteoformCompositions(); i++)
            {
                graph.SetSink(i);
                Console.WriteLine("ModComb: " + graph.GetModificationCombinations()[i]);
                var score = graph.GetFragmentScore(scorer);
                Console.WriteLine("Fast search score: " + score);
                var composition = graph.GetSinkSequenceCompositionWithH2O();

                var informedScorer = new InformedTopDownScorer(run, aaSet, 1, 30, new Tolerance(10));
                var refinedScore   = informedScorer.GetScores(AminoAcid.ProteinNTerm, SimpleStringProcessing.GetStringBetweenDots(annotation), AminoAcid.ProteinCTerm, composition, charge, ms2ScanNum);
                Console.WriteLine("Modifications: {0}", refinedScore.Modifications);
                Console.WriteLine("Composition: {0}", composition);
                Console.WriteLine("RefinedScores: {0}", refinedScore);
            }
        }
示例#3
0
        public void FilteringEfficiencyQcShew()
        {
            var methodName = MethodBase.GetCurrentMethod().Name;

            Utils.ShowStarting(methodName);

            var sw = new System.Diagnostics.Stopwatch();

            sw.Start();
            const string rawFilePath = @"C:\cygwin\home\kims336\Data\TopDownQCShew\raw\QC_ShewIntact_2ug_3k_CID_4Apr14_Bane_PL011402.raw";

            if (!File.Exists(rawFilePath))
            {
                Assert.Ignore(@"Skipping test {0} since file not found: {1}", methodName, rawFilePath);
            }

            var run = InMemoryLcMsRun.GetLcMsRun(rawFilePath, 1.4826, 1.4826);

            sw.Stop();

            Console.WriteLine(@"Reading run: {0:f4} sec", sw.Elapsed.TotalSeconds);

            const int minPrecursorCharge = 3;
            const int maxPrecursorCharge = 30;
            const int tolerancePpm       = 10;
            var       tolerance          = new Tolerance(tolerancePpm);

            sw.Reset();
            sw.Start();
            var ms1BasedFilter = new Ms1IsotopeAndChargeCorrFilter(run, new Tolerance(10.0), minPrecursorCharge, maxPrecursorCharge, 3000, 50000, 0.7, 0.7, 0.7, 40);

            //var ms1BasedFilter = new Ms1IsotopeCorrFilter(run, minPrecursorCharge, maxPrecursorCharge, 15, 0.5, 40);

            sw.Stop();

            Console.WriteLine(@"Ms1 filter: {0:f4} sec", sw.Elapsed.TotalSeconds);

            ISequenceFilter ms1Filter = ms1BasedFilter;

            sw.Reset();
            sw.Start();
            const double minProteinMass = 3000.0;
            const double maxProteinMass = 30000.0;
            var          minBinNum      = ProductScorerBasedOnDeconvolutedSpectra.GetBinNumber(minProteinMass);
            var          maxBinNum      = ProductScorerBasedOnDeconvolutedSpectra.GetBinNumber(maxProteinMass);
            var          numComparisons = 0L;

            for (var binNum = minBinNum; binNum <= maxBinNum; binNum++)
            {
                var mass = ProductScorerBasedOnDeconvolutedSpectra.GetMz(binNum);
                numComparisons += ms1Filter.GetMatchingMs2ScanNums(mass).Count();
            }
            sw.Stop();

            Console.WriteLine(@"Calculating #matches per bin: {0:f4} sec", sw.Elapsed.TotalSeconds);

            //const string prot =
            //    "ADVFHLGLTKAMLDGATLAIVPGDPERVKRIAELMDNATFLASHREYTSYLAYADGKPVVICSTGIGGPSTSIAVEELAQLGVNTFLRVGTTGAIQPHVNVGDVIVTQASVRLDGASLHFAPMEFPAVANFECTTAMVAACRDAGVEPHIGVTASSDTFYPGQERYDTVTGRVTRRFAGSMKEWQDMGVLNYEMESATLFTMCATQGWRAACVAGVIVNRTQQEIPDEATMKKTEVSAVSIVVAAAKKLLA";
            //var protMass = (new AminoAcidSet().GetComposition(prot) + Composition.H2O).Mass;
            //Console.WriteLine("************ScanNums: " + string.Join("\t", ms1Filter.GetMatchingMs2ScanNums(protMass)));

            const string resultFilePath = @"C:\cygwin\home\kims336\Data\TopDownQCShew\MSAlign\NoMod.tsv";

            if (!File.Exists(resultFilePath))
            {
                Assert.Ignore(@"Skipping test {0} since file not found: {1}", methodName, resultFilePath);
            }

            var tsvReader = new TsvFileParser(resultFilePath);
            var scanNums  = tsvReader.GetData("Scan(s)");
            var charges   = tsvReader.GetData("Charge");
            var scores    = tsvReader.GetData("E-value");
            var sequences = tsvReader.GetData("Peptide");

            //const string resultFilePath = @"C:\cygwin\home\kims336\Data\TopDownQCShew\raw\QC_ShewIntact_2ug_3k_CID_4Apr14_Bane_PL011402_N30_C30.tsv";
            //var tsvReader = new TsvFileParser(resultFilePath);
            //var scanNums = tsvReader.GetData("ScanNum");
            //var charges = tsvReader.GetData("Charge");
            //var scores = tsvReader.GetData("Score");
            //var sequences = tsvReader.GetData("Sequence");

            var aaSet = new AminoAcidSet();

            var seqSet             = new HashSet <string>();
            var allSeqSet          = new HashSet <string>();
            var numUnfilteredSpecs = 0;
            var totalSpecs         = 0;

            for (var i = 0; i < scores.Count; i++)
            {
                var score = Convert.ToDouble(scores[i]);
                if (score > 1E-4)
                {
                    continue;
                }
                //if (score < 10) continue;

                var scanNum = Convert.ToInt32(scanNums[i]);
                var charge  = Convert.ToInt32(charges[i]);

                var sequence = SimpleStringProcessing.GetStringBetweenDots(sequences[i]);
                if (sequence == null || sequence.Contains("("))
                {
                    continue;
                }
                //var sequence = sequences[i];
                var composition = aaSet.GetComposition(sequence) + Composition.H2O;

                var precursorIon = new Ion(composition, charge);
                var isValid      = run.GetSpectrum(scanNum) is ProductSpectrum spec && spec.IsolationWindow.Contains(precursorIon.GetMostAbundantIsotopeMz());
                if (!isValid)
                {
                    continue;
                }
                ++totalSpecs;

                var precursorScanNum = run.GetPrecursorScanNum(scanNum);
                var precursorSpec    = run.GetSpectrum(precursorScanNum);
                var corr1            = precursorSpec.GetCorrScore(precursorIon, tolerance, 0.1);

                var nextScanNum = run.GetNextScanNum(scanNum, 1);
                var nextSpec    = run.GetSpectrum(nextScanNum);
                var corr2       = nextSpec.GetCorrScore(precursorIon, tolerance, 0.1);

                var corr3 = ms1Filter.GetMatchingMs2ScanNums(composition.Mass).Contains(scanNum) ? 1 : 0;
                if (corr3 == 1)
                {
                    numUnfilteredSpecs++;
                    seqSet.Add(sequences[i]);
                }
                allSeqSet.Add(sequences[i]);

                var corrMax = new[] { corr1, corr2, corr3 }.Max();

                Console.WriteLine("{0}\t{1}\t{2}\t{3}\t{4}\t{5}\t{6}", scanNum, precursorScanNum, corr1, nextScanNum, corr2, corr3, corrMax);
            }

            Console.WriteLine("TotalNumComparisons: {0}", numComparisons);
            Console.WriteLine("AverageNumComparisons: {0:f2}", numComparisons / (double)(maxBinNum - minBinNum + 1));
            Console.WriteLine("SuccessRate: {0:f2} {1} / {2}", numUnfilteredSpecs / (double)totalSpecs, numUnfilteredSpecs, totalSpecs);
            Console.WriteLine("NumUniqueSequences: {0:f2}, {1} / {2}", seqSet.Count / (double)allSeqSet.Count, seqSet.Count, allSeqSet.Count);

            Console.WriteLine(@"Elapsed Time: {0:f4} sec", sw.Elapsed.TotalSeconds);
        }