I need to perform an action (or series of actions) on an 454 dataset using
Galaxy, and have not been able to figure out the necessary steps, even
after looking through the toolbar expressions and using custom search.
My file is a fasta and has the standard format:


Each of the 100,000 sequences within this file contains a specific tag,
which is the first 8 nucleotides.
There are 19 tags total. I would like to identify these tags and add an
identifier of the tag to the sequence name.
Therefore, if I am looking for the first tag (CTGAGTCA), the output would
look like:


Is it possible to achieve this using Galaxy? If possible, could you kindly
suggest tools to use.

Thank you in advance,
Dominique Cowart
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