Do you mean that only the one MolSystem is showing in the Chain pulldown list in the AtomBrowser (the latter is what appears when you click the Assign button in the Assignment Panel)??  I looked at the code and it should be picking up all the chains, so there doesn’t seem to be any filtering going on.

Wayne

> On 20 Jul 2017, at 14:21, madhan kumar <[log in to unmask]> wrote:
>
> Dear all,
>
> I am using Analysis 2.4.2. I have a protein which is C-terminal amidated. I  did assignments for the protein without adding Nh2 at first in sequence. So I have created a new molsystem and new chain with the same sequence along with Nh2 at c terminal. I am having a problem to assign the Nh2 in 15N HSQC spectra. I picked the peak and gone for assignments. I did click assign but I couldn't see the newly added Molsystem at all. May I know how to do assignment for the same?
>
> Thank you in advance.
>
> --
> Thanks & Regards,
> M.Madhan Kumar,
> Molecular Biophysics Unit,
> Indian Institute of Science,
> Bangalore. India.
> +91 8277200969