Provided by: bioperl_1.6.924-3_all bug


       bp_unflatten_seq - unflatten a genbank or genbank-style feature file into a nested
       SeqFeature hierarchy


         bp_unflatten_seq.PLS -e 3 -gff ~/cvs/bioperl-live/t/data/

         bp_unflatten_seq.PLS --detail ~/cvs/bioperl-live/t/data/

         bp_unflatten_seq.PLS -i foo.embl --from embl --to chadoxml -o out.chado.xml

         bp_unflatten_seq.PLS --notypemap --detail --to asciitree -ethresh 2


       This script will unflatten a genbank or genbank-style file of SeqFeatures into a nested

       See Bio::SeqFeature::Tools::Unflattener

       In a GenBank/EMBL representation, features are 'flat' - for example, there is no link
       between an mRNA and a CDS, other than implicit links (eg via tags or via splice site
       coordinates) which may be hard to code for.

       This is most easily illustrated with the default output format, asciitree

       An unflattened genbank feature set may look like this (AB077698)

         Seq: AB077698
           databank_entry                                   1..2701[+]
               CDS hCHCR-G                                  80..1144[+]
               exon                                         80..1144[+]
             five_prime_UTR                                 1..79[+]
             located_sequence_feature                       137..196[+]
             located_sequence_feature                       239..292[+]
             located_sequence_feature                       617..676[+]
             located_sequence_feature                       725..778[+]
             three_prime_UTR                                1145..2659[+]
             polyA_site                                     1606..1606[+]
             polyA_site                                     2660..2660[+]

       Or like this (portion of AE003734)

           mRNA CG3320-RA
             CDS CG3320-PA                                53126..54971[-]
             exon                                         52204..53323[-]
             exon                                         53404..53631[-]
             exon                                         53688..53735[-]
             exon                                         53798..53918[-]
             exon                                         54949..55287[-]
           mRNA CG3320-RB
             CDS CG3320-PB                                53383..54971[-]
             exon                                         52204..53631[-]
             exon                                         53688..53735[-]
             exon                                         53798..53918[-]
             exon                                         54949..55287[-]

       The unflattening will also 'normalize' the containment hierarchy (in the sense of
       standardising it - e.g. making sure there is always a transcript record, even if genbank
       just specifies CDS and gene)

       By default, the GenBank types will be mapped to SO types

       See Bio::SeqFeature::Tools::TypeMapper


       -i|input FILE
           input file (can also be specified as last argument)

       -from FORMAT
           input format (defaults to genbank)

           probably doesnt make so much sense to use this for non-flat formats; ie other than

       -to FORMAT
           output format (defaults to asciitree)

           should really be a format that is nested SeqFeature aware; I think this is only
           asciitree, chadoxml and gff3

           with export to GFF3 format (pre-3 GFFs make no sense with unflattened sequences, as
           they have no set way of representing feature graphs)

       -o|output FILE
           outfile defaults to STDOUT

           show extra detail on features (asciitree mode only)

       -e|ethresh INT
           sets the error threshold on unflattening

           by default this script will throw a wobbly if it encounters weird stuff in the genbank
           file - raise the error threshold to signal these to be ignored (and reported on

           suppress use_magic in unflattening (see Bio::SeqFeature::Tools::Unflattener

           suppress type mapping (see Bio::SeqFeature::Tools::TypeMapper


       Bio::SeqFeature::Tools::Unflattener allows fine-grained control over the unflattening
       process - need to add more options to allow this control at the command line


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        Chris Mungall E<lt>cjm-at-bioperl.orgE<gt>