| Bio::Tools::Spidey::Exon(3pm) | User Contributed Perl Documentation | Bio::Tools::Spidey::Exon(3pm) |
Bio::Tools::Spidey::Exon - A single exon determined by an alignment
# See Bio::Tools::Spidey::Results for a description of the context.
# an instance of this class is-a Bio::SeqFeature::SimilarityPair
# coordinates of the exon (recommended way):
print "exon from ", $exon->start(),
" to ", $exon->end(), "\n";
# the same (feature1() inherited from Bio::SeqFeature::FeaturePair)
print "exon from ", $exon->feature1()->start(),
" to ", $exon->feature1()->end(), "\n";
# also the same (query() inherited from Bio::SeqFeature::SimilarityPair):
print "exon from ", $exon->query()->start(),
" to ", $exon->query()->end(), "\n";
# coordinates on the matching EST (recommended way):
print "matches on EST from ", $exon->est_hit()->start(),
" to ", $exon->est_hit()->end(), "\n";
# the same (feature2() inherited from Bio::SeqFeature::FeaturePair)
print "matches on EST from ", $exon->feature2()->start(),
" to ", $exon->feature2()->end(), "\n";
# also the same (subject() inherited from Bio::SeqFeature::SimilarityPair):
print "exon from ", $exon->subject()->start(),
" to ", $exon->subject()->end(), "\n";
This class inherits from Bio::SeqFeature::SimilarityPair and represents an exon on a genomic sequence determined by similarity, that is, by aligning an EST sequence (using Spidey in this case). Consequently, the notion of query and subject is always from the perspective of the genomic sequence: query refers to the genomic seq, subject to the aligned EST hit. Because of this, $exon->start(), $exon->end() etc will always return what you expect.
To get the coordinates on the matching EST, refer to the properties of the feature returned by est_hit().
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The rest of the documentation details each of the object methods. Internal methods are usually preceded with a _
Title : percentage_id Usage : $obj->percentage_id Function: This is the percent id as reported by Spidey Returns : value of percentage_id Args :
Title : est_hit
Usage : $est_feature = $obj->est_hit();
Function: Returns the EST hit pointing to (i.e., aligned to by Spidey) this
exon (i.e., genomic region). At present, merely a synonym for
$obj->feature2().
Returns : An Bio::SeqFeatureI implementing object.
Args :
Title : mismatches
Usage : $obj->mismatches;
Function: Returns the mismatches of the cDNA to (i.e., aligned to by Spidey) this
exon (i.e., genomic region).
Returns : value of mismatches.
Args :
Title : gaps
Usage : $obj->gaps;
Function: Returns the gaps of the cDNA to (i.e., aligned to by Spidey) this
exon (i.e., genomic region).
Returns : value of gaps.
Args :
Title : donor
Usage : $obj->donor;
Function: Returns 0 if a splice donor site does not exist, or
1 if a splice donor site exists
Returns : value of existence of donor splice site (0 or 1)
Args :
Title : acceptor
Usage : $obj->acceptor;
Function: Returns 0 if a splice acceptor site does not exist, or
1 if a splice acceptor site exists
Returns : value of existence of acceptor splice site (0 or 1)
Args :
| 2018-10-27 | perl v5.26.2 |