| NCBI BLAST+ (and the older NCBI "legacy" BLAST) can output in a range of formats including text, tabular and a more detailed XML format. You can do a lot of things with tabular files in Galaxy (sorting, filtering, joins, etc), however until BLAST+ 2.2.28 the tabular output never included the hit descriptions (titles) found in the other output formats. This tool turns a BLAST XML file into a simple tabular file containing one row per query sequence, containing the query identifier and then the three (by default) top hit descriptions (i.e. the first three). If a query doesn''t have that many hits, then these entries are left blank. This tool can also be used with the tabular output from BLAST+ instead, provided the relevant columns are provided. The default settings will work with the default 25 column extended output from the BLAST+ tools wrapped in Galaxy. Note if a query has no hits, it does not appear in the BLAST tabular output. |
hg clone https://testtoolshed.g2.bx.psu.edu/repos/peterjc/blastxml_to_top_descr