Have a look at the decoyfasta tool that ships with TPP.

On Fri, Sep 18, 2009 at 10:21 AM, rhodea <[email protected]> wrote:

>
> Dear friends,
>
> I have a large protein database (2G) in fasta format. I want to use it
> as decoy database during protein identification and append it to a
> target database. So I need to modify the ID name in this fasta file.
> How should I do it quickly in batch? Is there any software that can
> satisfy this aim?
>
> Sincerely,
>
> >
>

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