What it does

The tool finds the specified feature type(s) in an input GFF3 and will output only the specified feature type. By selecting the inversion, everything except the specified feature type(s) will be included in the output GFF3.

For example, user may output only Shine_Dalgarno_sequence type features, or, inverting that, output everything but Shine_Dalgarno_sequence type features. Any feature type used in the input GFF3 can be filtered; typical options would include gene, mRNA, CDS, tRNA, and terminator. The input name format must follow sequence ontology convention (http://www.sequenceontology.org/).