public static IAnnotatedTranscript GetAnnotatedTranscript(ITranscript transcript, IVariant leftShiftedVariant,
ISequence refSequence, IPredictionCache siftCache, IPredictionCache polyphenCache, AminoAcids aminoAcids)
{
var rightShiftedVariant = VariantRotator.Right(leftShiftedVariant, transcript, refSequence,
transcript.Gene.OnReverseStrand);
var leftAnnotation = AnnotateTranscript(transcript, leftShiftedVariant, aminoAcids, refSequence);
var rightAnnotation = ReferenceEquals(leftShiftedVariant, rightShiftedVariant)
? leftAnnotation
: AnnotateTranscript(transcript, rightShiftedVariant, aminoAcids, refSequence);
var consequences = GetConsequences(transcript, leftShiftedVariant, leftAnnotation.VariantEffect);
var hgvsCoding = HgvsCodingNomenclature.GetHgvscAnnotation(transcript, rightShiftedVariant, refSequence,
rightAnnotation.Position.RegionStartIndex, rightAnnotation.Position.RegionEndIndex);
var hgvsProtein = HgvsProteinNomenclature.GetHgvsProteinAnnotation(transcript,
rightAnnotation.RefAminoAcids, rightAnnotation.AltAminoAcids, rightAnnotation.TranscriptAltAllele,
rightAnnotation.Position, rightAnnotation.VariantEffect, rightShiftedVariant, refSequence, hgvsCoding,
leftShiftedVariant.Chromosome.UcscName == "chrM");
var predictionScores = GetPredictionScores(leftAnnotation.Position, leftAnnotation.RefAminoAcids,
leftAnnotation.AltAminoAcids, siftCache, polyphenCache, transcript.SiftIndex, transcript.PolyPhenIndex);
return(new AnnotatedTranscript(transcript, leftAnnotation.RefAminoAcids, leftAnnotation.AltAminoAcids,
leftAnnotation.RefCodons, leftAnnotation.AltCodons, leftAnnotation.Position, hgvsCoding, hgvsProtein,
predictionScores.Sift, predictionScores.PolyPhen, consequences, false));
}
AnnotateTranscript(ITranscript transcript, IVariant variant, ITranscript[] geneFusionCandidates)
{
var position = GetMappedPosition(transcript.TranscriptRegions, variant);
var geneFusionAnnotation = GeneFusionUtilities.GetGeneFusionAnnotation(variant.BreakEnds, transcript, geneFusionCandidates);
return(position, geneFusionAnnotation);
}
private static string GetHgvsFrameshiftNotation(ISequence refSequence, int cdsBegin, int cdsEnd,
string transcriptAltAllele, ITranscript transcript, bool isMitochondrial, string proteinId, int start,
int end)
{
var peptideSeq = transcript.Translation.PeptideSeq;
var altPeptideSeq = HgvsUtilities.GetAltPeptideSequence(refSequence, cdsBegin, cdsEnd, transcriptAltAllele, transcript, isMitochondrial);
if (start > end)
{
Swap.Int(ref start, ref end);
}
var frameshiftedParameters = HgvsUtilities.GetChangesAfterFrameshift(start, peptideSeq, altPeptideSeq);
start = frameshiftedParameters.Item1;
var refAminoAcid = frameshiftedParameters.Item2;
var altAminoAcid = frameshiftedParameters.Item3;
var refAbbreviation = AminoAcids.ConvertAminoAcidToAbbreviation(refAminoAcid);
if (altAminoAcid == AminoAcids.StopCodonChar)
{
return(HgvspNotation.GetSubstitutionNotation(proteinId, start, refAbbreviation, "Ter"));
}
var altAbbreviation = AminoAcids.ConvertAminoAcidToAbbreviation(altAminoAcid);
var countToStop = HgvsUtilities.GetNumAminoAcidsUntilStopCodon(altPeptideSeq, peptideSeq, start - 1, true);
return(HgvspNotation.GetFrameshiftNotation(proteinId, start, refAbbreviation, altAbbreviation, countToStop));
}
internal static ITranscript UpdatePredictions(this ITranscript t, int siftIndex, int polyphenIndex)
{
return(new Transcript(t.Chromosome, t.Start, t.End, t.Id, t.Translation, t.BioType, t.Gene,
t.TotalExonLength, t.StartExonPhase, t.IsCanonical, t.TranscriptRegions, t.NumExons,
t.MicroRnas, siftIndex, polyphenIndex, t.Source, t.CdsStartNotFound, t.CdsEndNotFound,
t.Selenocysteines, t.RnaEdits));
}
public static IAnnotatedTranscript GetAnnotatedTranscript(int variantEnd, ITranscript transcript)
{
bool isDownStream = variantEnd < transcript.Start == transcript.Gene.OnReverseStrand;
List <ConsequenceTag> consequences = Consequences.DetermineFlankingVariantEffects(isDownStream);
return(new AnnotatedTranscript(transcript, null, null, null, null, null, null, null, null, null, consequences, false));
}
private static IAnnotatedTranscript GetAnnotatedTranscript(IVariant variant, ISequence compressedSequence,
ITranscript transcript, Status annotationStatus, IPredictionCache siftCache, IPredictionCache polyphenCache)
{
IAnnotatedTranscript annotatedTranscript = null;
// ReSharper disable once SwitchStatementMissingSomeCases
switch (annotationStatus)
{
case Status.FlankingAnnotation:
annotatedTranscript =
FlankingTranscriptAnnotator.GetAnnotatedTranscript(variant.End, transcript);
break;
case Status.ReducedAnnotation:
annotatedTranscript = ReducedTranscriptAnnotator.GetAnnotatedTranscript(transcript, variant);
break;
case Status.RohAnnotation:
annotatedTranscript = RohTranscriptAnnotator.GetAnnotatedTranscript(transcript);
break;
case Status.FullAnnotation:
var acidsProvider = variant.Chromosome.UcscName == "chrM"
? MitoAminoAcidsProvider
: AminoAcidsProvider;
annotatedTranscript = FullTranscriptAnnotator.GetAnnotatedTranscript(transcript, variant,
compressedSequence, siftCache, polyphenCache, acidsProvider);
break;
}
return(annotatedTranscript);
}
public void DetermineExonicEffect(ITranscript transcript, IInterval variant, IMappedPosition position,
int coveredCdnaStart, int coveredCdnaEnd, int coveredCdsStart, int coveredCdsEnd, string altAllele,
bool startCodonInsertionWithNoImpact)
{
HasExonOverlap = position.ExonStart != -1 || position.ExonEnd != -1;
if (transcript.Translation != null)
{
var codingRegion = transcript.Translation.CodingRegion;
AfterCoding = IsAfterCoding(variant.Start, variant.End, transcript.End, codingRegion.End);
BeforeCoding = IsBeforeCoding(variant.Start, variant.End, transcript.Start, codingRegion.Start);
WithinCds = IsWithinCds(coveredCdsStart, coveredCdsEnd, codingRegion, variant);
IsCoding = !startCodonInsertionWithNoImpact && (position.CdsStart != -1 || position.CdsEnd != -1);
}
WithinCdna = IsWithinCdna(coveredCdnaStart, coveredCdnaEnd, transcript.TotalExonLength);
if (coveredCdsStart != -1 && coveredCdsEnd != -1)
{
var varLen = coveredCdsEnd - coveredCdsStart + 1;
var alleleLen = altAllele?.Length ?? 0;
HasFrameShift = position.CdsStart != -1 && position.CdsEnd != -1 && !Codons.IsTriplet(alleleLen - varLen);
}
OverlapWithMicroRna = IsMatureMirnaVariant(position.CdnaStart, position.CdnaEnd, transcript.MicroRnas,
transcript.BioType == BioType.miRNA);
}
public VariantEffect(TranscriptPositionalEffect transcriptEffect, ISimpleVariant variant, ITranscript transcript,
string referenAminoAcids, string alternateAminoAcids, string referenceCodons, string alternateCodons,
int?proteinBegin, string coveredReferenceAminoAcids, string coveredAlternateAminoAcids, VariantEffectCache cache = null)
{
_transcript = transcript;
_variant = variant;
_preCache = transcriptEffect;
_cache = cache ?? new VariantEffectCache();
_referenceAminoAcids = referenAminoAcids;
_alternateAminoAcids = alternateAminoAcids;
_referenceAminoAcidsLen = _referenceAminoAcids?.Length ?? 0;
_alternateAminoAcidsLen = _alternateAminoAcids?.Length ?? 0;
_coveredReferenceAminoAcids = coveredReferenceAminoAcids;
_coveredAlternateAminoAcids = coveredAlternateAminoAcids;
_referenceCodons = referenceCodons;
_alternateCodons = alternateCodons;
_referenceCodonsLen = _referenceCodons?.Length ?? 0;
_alternateCodonsLen = _alternateCodons?.Length ?? 0;
_isInsertion = variant.AltAllele.Length > variant.RefAllele.Length;
_isDeletion = variant.AltAllele.Length < variant.RefAllele.Length;
_proteinBegin = proteinBegin ?? -1;
}
public void OnStarted()
{
if (m_transcript == null)
m_transcript = m_boss.Get<ITranscript>();
m_transcript.Show();
}
public Debugger(ProcessStartInfo info, bool breakInMain)
{
Contract.Requires(info != null, "info is null");
ActiveObjects.Add(this);
m_thread = new DebuggerThread(this, breakInMain);
Boss boss = ObjectModel.Create("Application");
m_transcript = boss.Get<ITranscript>();
StepBy = StepSize.Line;
var options = new LaunchOptions();
// options.AgentArgs = "loglevel=1,logfile='/Users/jessejones/Source/Continuum/sdb.log'";
// We do this lame assignment to a static so that OnLaunched can be made a static
// method. Mono 2.6.7 doesn't GC asynchronously invoked delegates in a timely fashion
// (tho it does appear to collect them if more than ten stack up).
ms_debugger = this;
Unused.Value = VirtualMachineManager.BeginLaunch(info, Debugger.OnLaunched, options);
Broadcaster.Register("added breakpoint", this);
Broadcaster.Register("removing breakpoint", this);
Broadcaster.Register("toggled exceptions", this);
ms_running = true;
}
private static IInterval[] ConstructCdsIntervalsFromTranscript(ITranscript transcript)
{
var cdsIntervals = new List <IInterval>();
if (transcript.Translation == null)
{
return(null);
}
ICodingRegion codingRegion = transcript.Translation.CodingRegion;
List <ITranscriptRegion> exonRegions = transcript.TranscriptRegions.Where(x => x.Type == TranscriptRegionType.Exon).ToList();
if (codingRegion == null)
{
return(null); // no coding region
}
foreach (var exonRegion in exonRegions) // assume the exon regions are ordered
{
var exonCodingRegion = exonRegion.Intersects(codingRegion);
if (exonCodingRegion.Start == -1)
{
continue;
}
cdsIntervals.Add(new Interval(exonCodingRegion.Start, exonCodingRegion.End));
}
return(cdsIntervals.ToArray());
}
public static IAnnotatedTranscript GetAnnotatedTranscript(ITranscript transcript, IVariant variant, ITranscript[] geneFusionCandidates)
{
var annotation = AnnotateTranscript(transcript, variant, geneFusionCandidates);
var consequences = GetConsequences(transcript, variant, annotation.GeneFusion != null);
return(new AnnotatedTranscript(transcript, null, null, null, null, annotation.Position, null, null, null,
null, consequences, annotation.GeneFusion, false));
}
public static string GetHgvscAnnotation(ITranscript transcript, ISimpleVariant variant, ISequence refSequence,
int regionStart, int regionEnd)
{
// sanity check: don't try to handle odd characters, make sure this is not a reference allele,
// and make sure that we have protein coordinates
if (variant.Type == VariantType.reference || SequenceUtilities.HasNonCanonicalBase(variant.AltAllele))
{
return(null);
}
var onReverseStrand = transcript.Gene.OnReverseStrand;
var refAllele = onReverseStrand ? SequenceUtilities.GetReverseComplement(variant.RefAllele) : variant.RefAllele;
var altAllele = onReverseStrand ? SequenceUtilities.GetReverseComplement(variant.AltAllele) : variant.AltAllele;
// decide event type from HGVS nomenclature
var genomicChange = GetGenomicChange(transcript, onReverseStrand, refSequence, variant);
var variantStart = variant.Start;
var variantEnd = variant.End;
if (genomicChange == GenomicChange.Duplication)
{
(variantStart, variantEnd, refAllele, regionStart, regionEnd) = transcript.TranscriptRegions.ShiftDuplication(variantStart, altAllele, onReverseStrand);
}
var startPositionOffset = HgvsUtilities.GetCdnaPositionOffset(transcript, variantStart, regionStart);
var endPositionOffset = variantStart == variantEnd
? startPositionOffset
: HgvsUtilities.GetCdnaPositionOffset(transcript, variantEnd, regionEnd);
if (onReverseStrand)
{
var tmp = startPositionOffset;
startPositionOffset = endPositionOffset;
endPositionOffset = tmp;
}
// sanity check: make sure we have coordinates
if (startPositionOffset == null || endPositionOffset == null)
{
return(null);
}
var transcriptLen = transcript.End - transcript.Start + 1;
//_hgvs notation past the transcript
if (startPositionOffset.Position > transcriptLen || endPositionOffset.Position > transcriptLen)
{
return(null);
}
var hgvsNotation = new HgvscNotation(refAllele, altAllele, transcript.Id.WithVersion, genomicChange,
startPositionOffset, endPositionOffset, transcript.Translation != null);
// generic formatting
return(hgvsNotation.ToString());
}
public static IAnnotatedTranscript GetAnnotatedTranscript(int variantEnd, ITranscript transcript)
{
var isDownStream = variantEnd < transcript.Start == transcript.Gene.OnReverseStrand;
var consequence = new Consequences();
consequence.DetermineFlankingVariantEffects(isDownStream);
return(new AnnotatedTranscript(transcript, null, null, null, null, null, null, null, null, null,
consequence.GetConsequences(), false));
}
private static IEnumerable <ConsequenceTag> GetConsequences(ITranscript transcript, IVariant variant,
bool hasGeneFusionAnnotation)
{
var featureEffect = new FeatureVariantEffects(transcript, variant.Type, variant, true);
var consequence = new Consequences(null, featureEffect);
consequence.DetermineStructuralVariantEffect(variant.Type, hasGeneFusionAnnotation);
return(consequence.GetConsequences());
}
private static bool SkipGeneFusion(ITranscript transcript, ITranscript transcript2, IBreakEndPiece piece2)
{
return(transcript.Source != transcript2.Source ||
transcript2.Translation == null ||
transcript2.Gene.Symbol == transcript.Gene.Symbol ||
transcript2.Chromosome.Index == transcript.Chromosome.Index &&
transcript2.Chromosome.Index != piece2.Chromosome.Index ||
transcript2.Translation.CodingRegion.Overlaps(transcript.Translation.CodingRegion) ||
!transcript2.Translation.CodingRegion.Overlaps(piece2.Position, piece2.Position));
}
public Hac(IAttendance attendance, ICourses courses, IIpr ipr, IReportCard reportCard, IStudentInfo studentInfo,
ITranscript transcript)
{
_attendance = attendance;
_courses = courses;
_ipr = ipr;
_reportCard = reportCard;
_studentInfo = studentInfo;
_transcript = transcript;
}
private static List <ConsequenceTag> GetConsequences(ITranscript transcript, IVariant variant, VariantEffect variantEffect)
{
var featureEffect = new FeatureVariantEffects(transcript, variant.Type, variant.Start, variant.End,
variant.Behavior.StructuralVariantConsequence);
var consequence = new Consequences(variantEffect, featureEffect);
consequence.DetermineSmallVariantEffects();
return(consequence.GetConsequences());
}
public static IAnnotatedTranscript GetAnnotatedTranscript(ITranscript transcript, IVariant variant)
{
bool completeOverlap = variant.Contains(transcript);
var mappedPosition = completeOverlap ? null : GetMappedPosition(transcript.TranscriptRegions, variant);
List <ConsequenceTag> consequences = GetConsequences(transcript, variant);
return(new AnnotatedTranscript(transcript, null, null, null, null, mappedPosition, null, null, null, null,
consequences, completeOverlap));
}
public GeneFusionUtilitiesTests()
{
IGene mzt2BGene = new Gene(ChromosomeUtilities.Chr2, 0, 0, false, "MZT2B", 0, CompactId.Empty, CompactId.Empty);
IGene mzt2AGene = new Gene(ChromosomeUtilities.Chr2, 0, 0, true, "MZT2A", 0, CompactId.Empty, CompactId.Empty);
var transcriptRegions = new ITranscriptRegion[5];
transcriptRegions[0] = new TranscriptRegion(TranscriptRegionType.Exon, 1, 130181729, 130181797, 1, 61);
transcriptRegions[1] = new TranscriptRegion(TranscriptRegionType.Intron, 1, 130181798, 130182626, 61, 62);
transcriptRegions[2] = new TranscriptRegion(TranscriptRegionType.Exon, 2, 130182627, 130182775, 62, 210);
transcriptRegions[3] = new TranscriptRegion(TranscriptRegionType.Intron, 2, 130182776, 130190468, 210, 211);
transcriptRegions[4] = new TranscriptRegion(TranscriptRegionType.Exon, 3, 130190469, 130190713, 211, 455);
var codingRegion = new CodingRegion(130181737, 130190626, 1, 368, 369);
var translation = new Translation(codingRegion, CompactId.Empty, null);
_enst00000425361 = new Transcript(ChromosomeUtilities.Chr2, 130181737, 130190713, CompactId.Convert("ENST00000425361", 5), translation, BioType.other,
mzt2BGene, 0, 0, false, transcriptRegions, 0, null, 0, 0, Source.Ensembl, false, false, null, null);
_originTranscripts = new[] { _enst00000425361 };
var transcriptRegions2 = new ITranscriptRegion[10];
transcriptRegions2[0] = new TranscriptRegion(TranscriptRegionType.Exon, 5, 131464900, 131465047, 532, 679);
transcriptRegions2[1] = new TranscriptRegion(TranscriptRegionType.Intron, 4, 131465048, 131470205, 531, 532);
transcriptRegions2[2] = new TranscriptRegion(TranscriptRegionType.Exon, 4, 131470206, 131470343, 394, 531);
transcriptRegions2[3] = new TranscriptRegion(TranscriptRegionType.Intron, 3, 131470344, 131472067, 393, 394);
transcriptRegions2[4] = new TranscriptRegion(TranscriptRegionType.Exon, 3, 131472068, 131472182, 279, 393);
transcriptRegions2[5] = new TranscriptRegion(TranscriptRegionType.Intron, 2, 131472183, 131491875, 278, 279);
transcriptRegions2[6] = new TranscriptRegion(TranscriptRegionType.Exon, 2, 131491876, 131492024, 130, 278);
transcriptRegions2[7] = new TranscriptRegion(TranscriptRegionType.Intron, 1, 131492025, 131492206, 129, 130);
transcriptRegions2[8] = new TranscriptRegion(TranscriptRegionType.Exon, 1, 131492207, 131492335, 1, 129);
transcriptRegions2[9] = new TranscriptRegion(TranscriptRegionType.Intron, 0, 131492336, 131492341, 0, 0);
var codingRegion2 = new CodingRegion(131470316, 131492335, 1, 421, 423);
var translation2 = new Translation(codingRegion2, CompactId.Empty, null);
_enst00000427024 = new Transcript(ChromosomeUtilities.Chr2, 131464900, 131492335, CompactId.Convert("ENST00000427024", 5), translation2, BioType.other,
mzt2AGene, 0, 0, false, transcriptRegions2, 0, null, 0, 0, Source.Ensembl, false, false, null, null);
var transcriptRegions3 = new ITranscriptRegion[5];
transcriptRegions3[0] = new TranscriptRegion(TranscriptRegionType.Exon, 3, 131483960, 131484218, 366, 624);
transcriptRegions3[1] = new TranscriptRegion(TranscriptRegionType.Intron, 2, 131484219, 131491875, 365, 366);
transcriptRegions3[2] = new TranscriptRegion(TranscriptRegionType.Exon, 2, 131491876, 131492024, 217, 365);
transcriptRegions3[3] = new TranscriptRegion(TranscriptRegionType.Intron, 1, 131492025, 131492206, 216, 217);
transcriptRegions3[4] = new TranscriptRegion(TranscriptRegionType.Exon, 1, 131492207, 131492422, 1, 216);
var codingRegion3 = new CodingRegion(131484061, 131492376, 47, 523, 477);
var translation3 = new Translation(codingRegion3, CompactId.Empty, null);
var enst00000309451 = new Transcript(ChromosomeUtilities.Chr2, 131483960, 131492422, CompactId.Convert("ENST00000309451", 6), translation3, BioType.other,
mzt2AGene, 0, 0, false, transcriptRegions3, 0, null, 0, 0, Source.Ensembl, false, false, null, null);
_partnerTranscripts = new[] { _enst00000427024, enst00000309451 };
}
public PianoAnnotatedTranscript(ITranscript transcript, string referenceAminoAcids, string alternateAminoAcids, IMappedPositions mappedPositions, string upstreamAminoAcids,
string downStreamAminoAcids, IEnumerable <ConsequenceTag> consequences)
{
Transcript = transcript;
ReferenceAminoAcids = referenceAminoAcids;
AlternateAminoAcids = alternateAminoAcids;
MappedPositions = mappedPositions;
UpstreamAminoAcids = upstreamAminoAcids;
DownStreamAminoAcids = downStreamAminoAcids;
Consequences = consequences;
}
private static ISequence GetCodingSequence(ITranscript transcript, ISequence refSequence)
{
if (transcript.Translation == null)
{
return(null);
}
return(transcript.CodingSequence ?? (transcript.CodingSequence = new CodingSequence(refSequence,
transcript.Translation.CodingRegion, transcript.TranscriptRegions,
transcript.Gene.OnReverseStrand, transcript.StartExonPhase, transcript.RnaEdits)));
}
private IGeneralAttributes GetGeneralAttributes(ITranscript transcript)
{
string bioType = AnnotatedTranscript.GetBioType(transcript.BioType);
int internalGeneId = _geneToInternalId[transcript.Gene];
string geneId = transcript.Source == Source.Ensembl
? transcript.Gene.EnsemblId.WithVersion
: transcript.Gene.EntrezGeneId.WithVersion;
return(new GeneralAttributes(geneId, transcript.Gene.Symbol, transcript.Id.WithVersion,
transcript.Translation?.ProteinId?.WithVersion, bioType, transcript.IsCanonical, internalGeneId));
}
private static (string Hgvs, bool IsTranscriptSuffix) GetBreakEndHgvs(ITranscript transcript, int regionIndex,
int position, bool isGenomicSuffix)
{
var positionOffset = HgvsUtilities.GetCdnaPositionOffset(transcript, position, regionIndex);
var isTranscriptSuffix = isGenomicSuffix != transcript.Gene.OnReverseStrand;
var codingRegionLength = transcript.Translation.CodingRegion.CdnaEnd - transcript.Translation.CodingRegion.CdnaStart + 1;
var hgvsPosString = isTranscriptSuffix ? positionOffset.Value + "_" + codingRegionLength : 1 + "_" + positionOffset.Value;
var hgvs = transcript.Gene.Symbol + "{" + transcript.Id.WithVersion + "}" + ":c." + hgvsPosString;
return(hgvs, isTranscriptSuffix);
}
protected BaseFindInFiles(string directory, string[] include, string[] exclude)
{
m_directory = directory;
m_include = include;
m_exclude = exclude;
Boss boss = ObjectModel.Create("TextEditorPlugin");
m_encoding = boss.Get<ITextEncoding>();
boss = ObjectModel.Create("Application");
m_transcript = boss.Get<ITranscript>();
}
private static VariantEffect GetVariantEffect(ITranscript transcript, ISimpleVariant variant, IMappedPositions mappedPositions, string refAminoAcids, string altAminoAcids, string refCodons, string altCodons, bool insertionInStartAndNoImpact)
{
var positionalEffect = new TranscriptPositionalEffect();
positionalEffect.DetermineIntronicEffect(transcript.Introns, variant, variant.Type);
positionalEffect.DetermineExonicEffect(transcript, variant, mappedPositions, variant.AltAllele, insertionInStartAndNoImpact);
var variantEffect = new VariantEffect(positionalEffect, variant, transcript, refAminoAcids,
altAminoAcids,
refCodons, altCodons, mappedPositions.ProteinInterval.Start);
return(variantEffect);
}
private static void AddOverlappingTranscript(Status annotationStatus, ITranscript transcript, IInterval variant,
IList <IOverlappingTranscript> overlappingTranscripts)
{
if (annotationStatus == Status.SvCompleteOverlapAnnotation)
{
overlappingTranscripts.Add(new OverlappingTranscript(transcript.Id, transcript.Gene.Symbol, transcript.IsCanonical, false));
}
if (annotationStatus == Status.ReducedAnnotation)
{
var partialOverlap = !variant.Contains(transcript);
overlappingTranscripts.Add(new OverlappingTranscript(transcript.Id, transcript.Gene.Symbol, transcript.IsCanonical, partialOverlap));
}
}
private static TranscriptPositionalEffect GetPositionalEffect(ITranscript transcript, ISimpleVariant variant,
IMappedPosition position, string refAminoAcid, string altAminoAcid, int coveredCdnaStart,
int coveredCdnaEnd, int coveredCdsStart, int coveredCdsEnd)
{
bool startCodonInsertionWithNoImpact = variant.Type == VariantType.insertion &&
position.ProteinStart <= 1 &&
altAminoAcid.EndsWith(refAminoAcid);
var positionalEffect = new TranscriptPositionalEffect();
positionalEffect.DetermineIntronicEffect(transcript.TranscriptRegions, variant, variant.Type);
positionalEffect.DetermineExonicEffect(transcript, variant, position, coveredCdnaStart, coveredCdnaEnd,
coveredCdsStart, coveredCdsEnd, variant.AltAllele, startCodonInsertionWithNoImpact);
return(positionalEffect);
}
private void Write(ITranscript transcript)
{
var requiredFields = GetRequiredFields(transcript);
var attribs = GetGeneralAttributes(transcript);
WriteGene(transcript.Gene, requiredFields, attribs.GeneId, attribs.InternalGeneId);
WriteTranscript(transcript, requiredFields, attribs);
var exons = transcript.TranscriptRegions.GetExons();
var codingRegion = transcript.Translation?.CodingRegion;
foreach (var exon in exons)
{
WriteExon(exon, requiredFields, attribs, codingRegion);
}
}
private static Tuple <string, string, string, string> GetCodonsAndAminoAcids(ITranscript transcript, ISequence refSequence,
string transcriptRefAllele, string transcriptAltAllele, ISimpleVariant variant,
IMappedPositions mappedPositions, AminoAcids aminoAcidsProvider)
{
var codingSequence = transcript.Translation == null
? null
: new CodingSequence(refSequence, transcript.Translation.CodingRegion.Start,
transcript.Translation.CodingRegion.End, transcript.CdnaMaps, transcript.Gene.OnReverseStrand,
transcript.StartExonPhase);
// compute codons and amino acids
AssignCodonsAndAminoAcids(transcriptRefAllele, transcriptAltAllele, mappedPositions,
codingSequence, aminoAcidsProvider, out string referenceCodons,
out string alternateCodons, out string referenceAminoAcids, out string alternateAminoAcids);
return(Tuple.Create(referenceCodons ?? "", alternateCodons ?? "", referenceAminoAcids ?? "",
alternateAminoAcids ?? ""));
}
public AnnotatedTranscript(ITranscript transcript, string referenceAminoAcids, string alternateAminoAcids,
string referenceCodons, string alternateCodons, IMappedPosition mappedPosition, string hgvsCoding,
string hgvsProtein, PredictionScore sift, PredictionScore polyphen,
List <ConsequenceTag> consequences, bool?completeOverlap)
{
Transcript = transcript;
ReferenceAminoAcids = referenceAminoAcids;
AlternateAminoAcids = alternateAminoAcids;
ReferenceCodons = referenceCodons;
AlternateCodons = alternateCodons;
MappedPosition = mappedPosition;
HgvsCoding = hgvsCoding;
HgvsProtein = hgvsProtein;
Sift = sift;
PolyPhen = polyphen;
Consequences = consequences;
CompleteOverlap = completeOverlap;
}
public AnnotatedTranscript(ITranscript transcript, string referenceAminoAcids, string alternateAminoAcids,
string referenceCodons, string alternateCodons, IMappedPosition mappedPosition, string hgvsCoding,
string hgvsProtein, PredictionScore sift, PredictionScore polyphen,
IEnumerable <ConsequenceTag> consequences, IGeneFusionAnnotation geneFusionAnnotation)
{
Transcript = transcript;
ReferenceAminoAcids = referenceAminoAcids;
AlternateAminoAcids = alternateAminoAcids;
ReferenceCodons = referenceCodons;
AlternateCodons = alternateCodons;
MappedPosition = mappedPosition;
HgvsCoding = hgvsCoding;
HgvsProtein = hgvsProtein;
Sift = sift;
PolyPhen = polyphen;
Consequences = consequences;
GeneFusionAnnotation = geneFusionAnnotation;
PluginData = new List <IPluginData>();
}
public static IAnnotatedTranscript GetAnnotatedTranscript(ITranscript transcript, IVariant variant, ISequence refSequence,
AminoAcids aminoAcidsProvider)
{
var mappedPositions = MappedPositionsUtils.ComputeMappedPositions(variant.Start, variant.End, transcript);
var transcriptRefAllele = HgvsUtilities.GetTranscriptAllele(variant.RefAllele, transcript.Gene.OnReverseStrand);
var transcriptAltAllele = HgvsUtilities.GetTranscriptAllele(variant.AltAllele, transcript.Gene.OnReverseStrand);
var codonsAndAminoAcids = GetCodonsAndAminoAcids(transcript, refSequence, transcriptRefAllele, transcriptAltAllele, variant, mappedPositions, aminoAcidsProvider);
var referenceCodons = codonsAndAminoAcids.Item1;
var alternateCodons = codonsAndAminoAcids.Item2;
var referenceAminoAcids = codonsAndAminoAcids.Item3;
var alternateAminoAcids = codonsAndAminoAcids.Item4;
var insertionInStartCodonAndNoimpact = variant.Type == VariantType.insertion &&
mappedPositions.ProteinInterval.Start <= 1 &&
alternateAminoAcids.EndsWith(referenceAminoAcids);
var variantEffect = GetVariantEffect(transcript, variant, mappedPositions, referenceAminoAcids,
alternateAminoAcids, referenceCodons, alternateCodons, insertionInStartCodonAndNoimpact);
var consequences = GetConsequences(transcript, variant, variantEffect);
var proteinBegin = mappedPositions.ProteinInterval.Start == null
? -1
: mappedPositions.ProteinInterval.Start.Value;
var proteinEnd = mappedPositions.ProteinInterval.End == null
? -1
: mappedPositions.ProteinInterval.End.Value;
var upStreamAminoAcids = GetFlankingPeptides(transcript.Translation?.PeptideSeq, proteinBegin, proteinEnd, FlankingAminoAcidLength, true);
var downStreamAminoAcids = consequences.Contains(ConsequenceTag.frameshift_variant)? null: GetFlankingPeptides(transcript.Translation?.PeptideSeq, proteinBegin, proteinEnd, FlankingAminoAcidLength, false);
return(new PianoAnnotatedTranscript(transcript, referenceAminoAcids, alternateAminoAcids, mappedPositions, upStreamAminoAcids, downStreamAminoAcids, consequences));
}
private void DoWrite(Output type, string text)
{
if (m_transcript == null)
m_transcript = m_boss.Get<ITranscript>();
m_transcript.Write(type, text);
}
