> ive come across this problem when tryin to assign a peak. for some
> reason when i try to assign the peak it thinks it has a completly
> different chemical shift.
> this has happen dfor H-shifts aswell. sometimes it helps to delete the
> peak, reapply it and then re-assign it. sometimes its just very stubborn
> and refuses
> eventhough ive made a new peak.
> i did a screenshot of the log aswell, but it doesnt say very much.
Hi Tomas,
Looking through the Analysis code and your helpful screen shots, it seems
likely that you are trying to assign a resonance to an atom that already
has an assignment, to a different resonance, at a completely different
chemical shift. - This is corroborated by the colour of the "CB" cell you
were using in the Atom Browser.
This could be confirmed by looking in the resonance table for an
assignment to the same atom. It is possible that such a resonance could be
orphaned, i.e. no longer linked to any peak, and so could be deleted.
I will put an extra warning into Analysis, so that the error message makes
more sense next time.
T.
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Dr Tim Stevens Email: [log in to unmask]
Department of Biochemistry [log in to unmask]
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