sf.setStrand("-");
genomic.addSequenceFeature(sf);
// exon (sub-type) at (start + exon_variant) length 101
sf = new SequenceFeature("coding_exon", "", 10500, 10600, 0f, null);
sf.setStrand("-");
genomic.addSequenceFeature(sf);
// exon (sub-type) at (start + exon_variant) length 101
sf = new SequenceFeature("coding_exon", "", 10500, 10600, 0f, null);