In article <hegyi.764450032 at hubi.abc.hu>, hegyi at hubi.abc.hu (Hedvig Hegyi)
> It is an extremely simple question, too: could anyone tell me how
> can I convert a 3-letter-coded protein sequence into a 1-letter-coded one?
> I went through the User's Guide of GCG but didn't find any clue. Is it
> possible that there isn't such a simple program included in GCG?
> Of course any other available program would do for me.
>> Many thanks,
>> Hedvig Hegyi
>hegyi at hubi.abc.h
I believe the REFORMAT/THReeintoone of GCG command will do what you ask.
REFORMAT/ONEintothree goes the other way (small letters optional).
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