return EnsemblSeqType.GENOMIC;
}
+ @Override
+ protected String getObjectType()
+ {
+ return OBJECT_TYPE_GENE;
+ }
+
/**
* Returns an alignment containing the gene(s) for the given gene or
* transcript identifier, or external identifier (e.g. Uniprot id). If given a
continue;
}
- parseChromosomeLocations(geneAlignment);
-
if (geneAlignment.getHeight() == 1)
{
+ // ensure id has 'correct' case for the Ensembl identifier
+ geneId = geneAlignment.getSequenceAt(0).getName();
+
+ findGeneLoci(geneAlignment.getSequenceAt(0), geneId);
+
getTranscripts(geneAlignment, geneId);
}
if (al == null)
}
/**
+ * Calls the /lookup/id REST service, parses the response for gene
+ * coordinates, and if successful, adds these to the sequence. If this fails,
+ * fall back on trying to parse the sequence description in case it is in
+ * Ensembl-gene format e.g. chromosome:GRCh38:17:45051610:45109016:1.
+ *
+ * @param seq
+ * @param geneId
+ */
+ void findGeneLoci(SequenceI seq, String geneId)
+ {
+ GeneLociI geneLoci = new EnsemblLookup(getDomain()).getGeneLoci(geneId);
+ if (geneLoci != null)
+ {
+ seq.setGeneLoci(geneLoci.getSpeciesId(), geneLoci.getAssemblyId(),
+ geneLoci.getChromosomeId(), geneLoci.getMap());
+ }
+ else
+ {
+ parseChromosomeLocations(seq);
+ }
+ }
+
+ /**
* Parses and saves fields of an Ensembl-style description e.g.
* chromosome:GRCh38:17:45051610:45109016:1
*
- * @param alignment
+ * @param seq
*/
- private void parseChromosomeLocations(AlignmentI alignment)
+ boolean parseChromosomeLocations(SequenceI seq)
{
- for (SequenceI seq : alignment.getSequences())
+ String description = seq.getDescription();
+ if (description == null)
{
- String description = seq.getDescription();
- if (description == null)
+ return false;
+ }
+ String[] tokens = description.split(":");
+ if (tokens.length == 6 && tokens[0].startsWith(DBRefEntry.CHROMOSOME))
+ {
+ String ref = tokens[1];
+ String chrom = tokens[2];
+ try
{
- continue;
- }
- String[] tokens = description.split(":");
- if (tokens.length == 6 && tokens[0].startsWith(DBRefEntry.CHROMOSOME))
+ int chStart = Integer.parseInt(tokens[3]);
+ int chEnd = Integer.parseInt(tokens[4]);
+ boolean forwardStrand = "1".equals(tokens[5]);
+ String species = ""; // not known here
+ int[] from = new int[] { seq.getStart(), seq.getEnd() };
+ int[] to = new int[] { forwardStrand ? chStart : chEnd,
+ forwardStrand ? chEnd : chStart };
+ MapList map = new MapList(from, to, 1, 1);
+ seq.setGeneLoci(species, ref, chrom, map);
+ return true;
+ } catch (NumberFormatException e)
{
- String ref = tokens[1];
- String chrom = tokens[2];
- try
- {
- int chStart = Integer.parseInt(tokens[3]);
- int chEnd = Integer.parseInt(tokens[4]);
- boolean forwardStrand = "1".equals(tokens[5]);
- String species = ""; // dunno yet!
- int[] from = new int[] { seq.getStart(), seq.getEnd() };
- int[] to = new int[] { forwardStrand ? chStart : chEnd,
- forwardStrand ? chEnd : chStart };
- MapList map = new MapList(from, to, 1, 1);
- seq.setGeneLoci(species, ref, chrom, map);
- } catch (NumberFormatException e)
- {
- System.err.println("Bad integers in description " + description);
- }
+ System.err.println("Bad integers in description " + description);
}
}
+ return false;
}
/**
- * Converts a query, which may contain one or more gene or transcript
- * identifiers, into a non-redundant list of gene identifiers.
+ * Converts a query, which may contain one or more gene, transcript, or
+ * external (to Ensembl) identifiers, into a non-redundant list of gene
+ * identifiers.
*
* @param accessions
* @return
*/
List<String> getGeneIds(String accessions)
{
- List<String> geneIds = new ArrayList<String>();
+ List<String> geneIds = new ArrayList<>();
for (String acc : accessions.split(getAccessionSeparator()))
{
- if (isGeneIdentifier(acc))
- {
- if (!geneIds.contains(acc))
- {
- geneIds.add(acc);
- }
- }
-
/*
- * if given a transcript id, look up its gene parent
+ * First try lookup as an Ensembl (gene or transcript) identifier
*/
- else if (isTranscriptIdentifier(acc))
+ String geneId = new EnsemblLookup(getDomain()).getGeneId(acc);
+ if (geneId != null)
{
- String geneId = new EnsemblLookup(getDomain()).getParent(acc);
- if (geneId != null && !geneIds.contains(geneId))
+ if (!geneIds.contains(geneId))
{
geneIds.add(geneId);
}
}
- else if (isProteinIdentifier(acc))
- {
- String tscriptId = new EnsemblLookup(getDomain()).getParent(acc);
- if (tscriptId != null)
- {
- String geneId = new EnsemblLookup(getDomain())
- .getParent(tscriptId);
-
- if (geneId != null && !geneIds.contains(geneId))
- {
- geneIds.add(geneId);
- }
- }
- // NOTE - acc is lost if it resembles an ENS.+ ID but isn't actually
- // resolving to one... e.g. ENSMICP00000009241
- }
- /*
- * if given a gene or other external name, lookup and fetch
- * the corresponding gene for all model organisms
- */
else
{
+ /*
+ * if given a gene or other external name, lookup and fetch
+ * the corresponding gene for all model organisms
+ */
List<String> ids = new EnsemblSymbol(getDomain(), getDbSource(),
- getDbVersion()).getIds(acc);
- for (String geneId : ids)
+ getDbVersion()).getGeneIds(acc);
+ for (String id : ids)
{
- if (!geneIds.contains(geneId))
+ if (!geneIds.contains(id))
{
- geneIds.add(geneId);
+ geneIds.add(id);
}
}
}
}
/**
- * Attempts to get Ensembl stable identifiers for model organisms for a gene
- * name by calling the xrefs symbol REST service to resolve the gene name.
- *
- * @param query
- * @return
- */
- protected String getGeneIdentifiersForName(String query)
- {
- List<String> ids = new EnsemblSymbol(getDomain(), getDbSource(),
- getDbVersion()).getIds(query);
- if (ids != null)
- {
- for (String id : ids)
- {
- if (isGeneIdentifier(id))
- {
- return id;
- }
- }
- }
- return null;
- }
-
- /**
* Constructs all transcripts for the gene, as identified by "transcript"
* features whose Parent is the requested gene. The coding transcript
* sequences (i.e. with introns omitted) are added to the alignment.
int transcriptLength = 0;
final char[] geneChars = gene.getSequence();
int offset = gene.getStart(); // to convert to 0-based positions
- List<int[]> mappedFrom = new ArrayList<int[]>();
+ List<int[]> mappedFrom = new ArrayList<>();
for (SequenceFeature sf : splices)
{
* transfer features to the new sequence; we use EnsemblCdna to do this,
* to filter out unwanted features types (see method retainFeature)
*/
- List<int[]> mapTo = new ArrayList<int[]>();
+ List<int[]> mapTo = new ArrayList<>();
mapTo.add(new int[] { 1, transcriptLength });
MapList mapping = new MapList(mappedFrom, mapTo, 1, 1);
EnsemblCdna cdna = new EnsemblCdna(getDomain());
/**
* Returns a list of the transcript features on the sequence whose Parent is
* the gene for the accession id.
+ * <p>
+ * Transcript features are those of type "transcript", or any of its sub-types
+ * in the Sequence Ontology e.g. "mRNA", "processed_transcript". We also
+ * include "NMD_transcript_variant", because this type behaves like a
+ * transcript identifier in Ensembl, although strictly speaking it is not in
+ * the SO.
*
* @param accId
* @param geneSequence
protected List<SequenceFeature> getTranscriptFeatures(String accId,
SequenceI geneSequence)
{
- List<SequenceFeature> transcriptFeatures = new ArrayList<SequenceFeature>();
+ List<SequenceFeature> transcriptFeatures = new ArrayList<>();
String parentIdentifier = GENE_PREFIX + accId;
- // todo optimise here by transcript type!
+
List<SequenceFeature> sfs = geneSequence.getFeatures()
- .getPositionalFeatures();
+ .getFeaturesByOntology(SequenceOntologyI.TRANSCRIPT);
+ sfs.addAll(geneSequence.getFeatures().getPositionalFeatures(
+ SequenceOntologyI.NMD_TRANSCRIPT_VARIANT));
for (SequenceFeature sf : sfs)
{
- if (isTranscript(sf.getType()))
+ String parent = (String) sf.getValue(PARENT);
+ if (parentIdentifier.equalsIgnoreCase(parent))
{
- String parent = (String) sf.getValue(PARENT);
- if (parentIdentifier.equals(parent))
- {
- transcriptFeatures.add(sf);
- }
+ transcriptFeatures.add(sf);
}
}
}
/**
- * Answers true for a feature of type 'gene' (or a sub-type of gene in the
- * Sequence Ontology), whose ID is the accession we are retrieving
+ * Answers a list of sequence features (if any) whose type is 'gene' (or a
+ * subtype of gene in the Sequence Ontology), and whose ID is the accession we
+ * are retrieving
*/
@Override
- protected boolean identifiesSequence(SequenceFeature sf, String accId)
+ protected List<SequenceFeature> getIdentifyingFeatures(SequenceI seq,
+ String accId)
{
- if (SequenceOntologyFactory.getInstance().isA(sf.getType(),
- SequenceOntologyI.GENE))
+ List<SequenceFeature> result = new ArrayList<>();
+ List<SequenceFeature> sfs = seq.getFeatures()
+ .getFeaturesByOntology(SequenceOntologyI.GENE);
+ for (SequenceFeature sf : sfs)
{
- String id = (String) sf.getValue(ID);
- if ((GENE_PREFIX + accId).equals(id))
+ // NB features as gff use 'ID'; rest services return as 'id'
+ String id = (String) sf.getValue("ID");
+ if ((GENE_PREFIX + accId).equalsIgnoreCase(id))
{
- return true;
+ result.add(sf);
}
}
- return false;
+ return result;
}
/**
if (isTranscript(type))
{
String parent = (String) sf.getValue(PARENT);
- if (!(GENE_PREFIX + accessionId).equals(parent))
+ if (!(GENE_PREFIX + accessionId).equalsIgnoreCase(parent))
{
return false;
}
}
/**
- * Answers false. This allows an optimisation - a single 'gene' feature is all
- * that is needed to identify the positions of the gene on the genomic
- * sequence.
- */
- @Override
- protected boolean isSpliceable()
- {
- return false;
- }
-
- /**
* Override to do nothing as Ensembl doesn't return a protein sequence for a
* gene identifier
*/
git://source.jalview.org / jalview.git / blobdiff