Hi Mark,
> I have a problem with writing out distance files for cyana: Regardless which
> options I choose in the format converter I have a substantial number of
> distances with a 0.00 distance limit. Essentially in all cases the zero
> distances come from peaks with degenerate chemical shifts of CH2 pairs, e.g.
> HG2/HG3 etc. I would have assumed that these are converted to QG etc. but
> instead the HG2/HG3 etc. are kept with zeros instead of meaningful
> distances. As a matter of fact I cannot see any QB/QG/QD etc. for CH2 groups
> even when I have identical chemical shifts.
> Most certainly I am missing something but what is it?
Are you exporting as CYANA version 2.1 format? If so, CYANA 2.1 can handle
ambiguous assignments, so the lines with distance 0.00 are ambiguous items
belonging to the line higher up that does have a distance.
Wim
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