Hi out there.

We posted this awhile back and got no response. Does anyone have any 
suggestions at all on our problem with UTR regions not displaying 
correctly with exons made up partly of a CDS region and a UTR region in 
GFF3?

  --Bob Muller, TAIR

Amie Radenbaugh wrote:
> Hi All,
>
> We are having trouble getting the FastaDumper plug-in to work in parallel 
> with our other CDS and mRNA (Protein Coding) tracks. When we first added the 
> FastaDumper plug-in to the .conf file, all of the basic functionality worked, 
> but when trying to download a decorated FASTA file for a CDS sequence, the 
> FastaDumper failed to label the CDS regions correctly. We then introduced a 
> new element to our .gff file which specifies an entire CDS span (translation 
> start to translation end) as other groups such as FlyBase have done. This 
> fixed the problem with labeling the CDS regions using the FastaDumper, but it 
> introduced new problems on our mRNA track. The UTR regions do not get 
> displayed correctly when an exon is made up partly of a CDS region and partly 
> of a UTR region.
>
> Here is an excerpt from our GFF3 file where the problem occurs:
>
> Chr1  TAIR71  chromosome      1       30432563        .       .       .       
> ID=Chr1;Name=Chr1
> Chr1  TAIR71  gene    1512900 1518804 .       -       .       
> ID=AT1G05230;Note=protein_coding_gene;Name=AT1G05230
> Chr1  TAIR71  mRNA    1512900 1517247 .       -       .       
> ID=AT1G05230.1;Parent=AT1G05230;Name=AT1G05230.1;Index=1
> Chr1  TAIR71  protein 1513387 1517023 .       -       .       
> ID=AT1G05230.1-CDS_SPAN;Name=AT1G05230.1;Derives_from=AT1G05230.1
> Chr1  TAIR71  exon    1517175 1517247 .       -       .       
> Parent=AT1G05230.1
> Chr1  TAIR71  five_prime_UTR  1517175 1517247 .       -       .       
> Parent=AT1G05230.1
> Chr1  TAIR71  exon    1516782 1517056 .       -       .       
> Parent=AT1G05230.1
> Chr1  TAIR71  five_prime_UTR  1517024 1517056 .       -       .       
> Parent=AT1G05230.1
> Chr1  TAIR71  CDS     1516782 1517023 .       -       0       
> Parent=AT1G05230.1-CDS_SPAN;Name=AT1G05230.1-CDS
> Chr1  TAIR71  exon    1516586 1516703 .       -       .       
> Parent=AT1G05230.1
> Chr1  TAIR71  CDS     1516586 1516703 .       -       1       
> Parent=AT1G05230.1-CDS_SPAN;Name=AT1G05230.1-CDS
> Chr1  TAIR71  exon    1515820 1516008 .       -       .       
> Parent=AT1G05230.1
> Chr1  TAIR71  CDS     1515820 1516008 .       -       0       
> Parent=AT1G05230.1-CDS_SPAN;Name=AT1G05230.1-CDS
> Chr1  TAIR71  exon    1515037 1515450 .       -       .       
> Parent=AT1G05230.1
> Chr1  TAIR71  CDS     1515037 1515450 .       -       0       
> Parent=AT1G05230.1-CDS_SPAN;Name=AT1G05230.1-CDS
> Chr1  TAIR71  exon    1514861 1514962 .       -       .       
> Parent=AT1G05230.1
> Chr1  TAIR71  CDS     1514861 1514962 .       -       0       
> Parent=AT1G05230.1-CDS_SPAN;Name=AT1G05230.1-CDS
> Chr1  TAIR71  exon    1514589 1514789 .       -       .       
> Parent=AT1G05230.1
> Chr1  TAIR71  CDS     1514589 1514789 .       -       0       
> Parent=AT1G05230.1-CDS_SPAN;Name=AT1G05230.1-CDS
> Chr1  TAIR71  exon    1514349 1514523 .       -       .       
> Parent=AT1G05230.1
> Chr1  TAIR71  CDS     1514349 1514523 .       -       0       
> Parent=AT1G05230.1-CDS_SPAN;Name=AT1G05230.1-CDS
> Chr1  TAIR71  exon    1513993 1514264 .       -       .       
> Parent=AT1G05230.1
> Chr1  TAIR71  CDS     1513993 1514264 .       -       2       
> Parent=AT1G05230.1-CDS_SPAN;Name=AT1G05230.1-CDS
> Chr1  TAIR71  exon    1513824 1513919 .       -       .       
> Parent=AT1G05230.1
> Chr1  TAIR71  CDS     1513824 1513919 .       -       0       
> Parent=AT1G05230.1-CDS_SPAN;Name=AT1G05230.1-CDS
> Chr1  TAIR71  exon    1513373 1513743 .       -       .       
> Parent=AT1G05230.1
> Chr1  TAIR71  CDS     1513387 1513743 .       -       0       
> Parent=AT1G05230.1-CDS_SPAN;Name=AT1G05230.1-CDS
> Chr1  TAIR71  three_prime_UTR 1513373 1513386 .       -       .       
> Parent=AT1G05230.1
> Chr1  TAIR71  exon    1512900 1513292 .       -       .       
> Parent=AT1G05230.1
> Chr1  TAIR71  three_prime_UTR 1512900 1513292 .       -       .       
> Parent=AT1G05230.1
>
> Here are our CDS and mRNA tracks:
>
> [ProteinCoding]
> feature         = mRNA
> glyph           = processed_transcript
> bgcolor         = steelblue
> fgcolor         = blue
> utr_color       = lightblue
> label density   = 50
> bump density    = 150
> description     = 0
> link            = /servlets/TairObject?name=$name&type=gene
> key             = Protein Coding Gene Models
> category        = Gene
> citation        = This track shows the transcript of the genes in this 
> section of the chromosome.
>
> [CDS]
> feature         = protein
> glyph           = cds
> height          = 30
> sixframe        = 1
> ignore_empty_phase      = 1
> frame0f         = cadetblue
> frame1f         = blue
> frame2f         = darkblue
> frame0r         = darkred
> frame1r         = red
> frame2r         = crimson
> category        = Gene
> key             = CDS
> citation        = This track shows coding segments for the genes in this 
> section of the chromosome.
>
> We are using Bio::DB::SeqFeature::Store. It would be great if anyone has any 
> tips on how to get the FastaDumper working together with the appropriate 
> labeling of CDS and mRNA tracks.
>
> Thanks,
> Amie
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