Dear all, it seems to be that I have a modified Asp in my structure. It seems that the side chain reacted with the main chain to an imide. I deleted the coorespondign O from the side chain and modified the pdb in the way that I added a link description between CG of Asp and N of following Gly residue. It seems to be O.K. during refinement and I can refine the Asp residue alone without a breakage of the CG-N bond. However when I try to refine it with the neighbouring residues the CG-N bond breaks. I could also add the SNN Monomer at this position but than my chain is not longer continous, but this is definitely the case. How I have to modify my pdb that the an refeinemnt over more residues is possible?
Thanks for your help Christian -- Christian Roth Institut für Bioanalytische Chemie Biotechnologisch-Biomedizinisches Zentrum Fakultät für Chemie und Mineralogie Universität Leipzig Deutscher Platz 5 04103 Leipzig Telefon: +49 (0)341 97 31316 Fax: +49 (0)341 97 31319
