From: George Tzotzos (
Date: Tue Aug 23 2011 - 08:59:19 CDT

Using the RMSD calculator extension for the alignment of two identical proteins (the first one is the crystallographic model and the second a structure derived from an AMBER trajectory) gives the attached error message.

I fail to understand why, as I performed similar jobs in the past successfully. I have double checked and the number of residues of both models is identical.

Your help in troubleshooting this problem will be much appreciated


  • application/octet-stream attachment: error_log