NAME

Bio::SeqFeature::Gene::ExonI - Interface for a feature representing an exon

SYNOPSIS

See documentation of methods.

DESCRIPTION

A feature representing an exon. An exon in this definition is transcribed and at least for one particular transcript not spliced out of the pre-mRNA. However, it does not necessarily code for amino acid.

FEEDBACK

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AUTHOR - Hilmar Lapp

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APPENDIX

The rest of the documentation details each of the object methods. Internal methods are usually preceded with a _

is_coding

Title   : is_coding
Usage   : if($exon->is_coding()) {
                  # do something
          }
Function: Whether or not the exon codes for amino acid.
Returns : TRUE if the object represents a feature translated into protein,
          and FALSE otherwise.
Args    : 

cds

Title   : cds()
Usage   : $cds = $exon->cds();
Function: Get the coding sequence of the exon as a sequence object.

          The returned sequence object must be in frame 0, i.e., the first
          base starts a codon.

          An implementation may return undef, indicating that a coding
          sequence does not exist, e.g. for a UTR (untranslated region).

Returns : A L<Bio::PrimarySeqI> implementing object.
Args    :