To use your own set of sequences as a sequence bank ready to be search for with BLAST, you have to convert your sequences to a BLAST binary file. This transformation requires to use the NCBI tool called formatdb. This tool is capable of converting the file(s) containing your set of sequences (FASTA formatted) into a binary indexed file fully optimized to speedup the BLAST search.

Starting with release 2.3, KoriBlast allows you to prepare easily your own sequence banks without the need to know how to use formatdb. KoriBlast hides to you the complexity of this tool by providing a dialogue box where you specify the set of FASTA files that have to be converted to a BLAST sequence bank.

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