I the ASAPRatio pane select the labeled amino acids.  For each labeled
amino acids specify the total modified monoisotopic mass.  You may
want to narrow the m/z range if you have high-mass-accuracy data.

-David

On Thu, Mar 5, 2009 at 9:55 PM, hqzlul <hqz...@gmail.com> wrote:
> Hi everyone
>   I am a newcomer as using TPP, Now I am need to analyse data which labeled
> by O18 but I don't know how to set those selectitems in
> "PeptideProphet Options" pane,"Xpress Options" pane and "ASAPRatio Options" pane which
> are in analyze peptides web page of TPP v4.2. If you know please help me.
>
> Thanks
>
> Bright
> 2009-03-06
> ________________________________
> hqzlul
> >
>

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