## Search sequence descriptions

### Description

This tool picks sequences based on the sequence descriptions from the given sequence set.

### Parameters

- pattern The pattern that is searched from the sequence descriptions.
- casesensitive Defines if the search is done in case sensitive mode.
- save_log Collect a log file about the run. Needed mostly for debugging.

### Details

This tools runs EMBOSS command textsearch that selects sequences based on the sequence description. The input sequences can be in any of the EMBOSS compatible sequence formats.

Note that the search term is considered as a regular expression and thus some characters (e.f. dot .) have special meaning. Further only the description part of the sequences file is used in the search. If the search pattern exists in other fields, for example in the sequence name, it does not affect to the search results.

### Output

Output is a fasta formatted sequence file.