Q:
I’m trying to visualize a morph between two structures. However, I’m prompted with the error message “Conflicting SEQRES records”. How may I resolve this?

A:
This is by far the most comment cause of failure. The server uses SEQRES data to determine the actual protein sequence. However, this frequently conflicts with the sequence intuited from ATOM records (including official PDB files from http://www.rcsb.org). If the server cannot automatically resolve these conflicts, it will fail. The easiest workaround to this is to submit files with SEQRES records deleted; if you supplied a PDB ID rather than a file you will need to download the proper file from the PDB, then modify and upload it. However, this may sometimes lead to other distortions, depending on the sequence numbering.