I have a system with two molecular systems with different residue numbers (1-180 and 20-196). My project has been made with the first system, and now I try to integrate the second system in order to be able to superpose HSQC spectra and compare chemical shifts.
I started by creating my second molecule from the sequence, then I imported chemical shifts, up to here, everything was fine (but there was a strange message asking for peak fitting when I imported resonance assignments). Then I opened the HSQC spectrum and correlated it with the Molecular System and the shift list in the Experiment Window. Now, when I start to import the peak lists with assignments corresponding to the sequence numbers of MS2, I cannot obtain the link resonance menu - Analysis (or Format Converter) tells me that unlinked resonances are present but they do not have information from external format files, and LinkResonances quits. In the resulting peak list, I have doubly assigned peaks with sequence and numbers from the two molecular systems present. How can I manage to import a peak list by connecting it myself to one of the two molecular systems present ? Any idea ? I suppose that there are some hidden connections between resonances, spectra and molecules that I did not see or understand ... Or is it a problem of chain labeling (my MS2 chain is labelled A, but not the peak file in NMRView format ...).