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How do I get the complete spliced nucleotide seq...

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How do I get the complete spliced nucleotide sequence from the CDS section?

You can use the spliced_seq method. For example:

 my $seq_obj = $db->get_Seq_by_id($gi);
 foreach my $feat ( $seq_obj->top_SeqFeatures ) {
 if ( $feat->primary_tag eq 'CDS' ) {
   my $cds_obj = $feat->spliced_seq;
   print "CDS sequence is ",$cds_obj->seq,"\n";
 }
}

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