Create script for sequence positions that differ between two proteins

Based on the current sequence alignment two aligned proteins are compared residue by residue and all different residues are collected in a table. The table can be used in different ways:
  1. Homology modeling: Some protein viewers such as the Swiss-viewer (http://www.expasy.org/spdbv/ can substitute residues in a 3D-structure. With this dialog the commands to replace the residues of the 3D-structure by the residues of a raw sequence can be generated. Alignment gaps are not considered.
    Customization: These commands can be modified using the customize dialog. The contents of the n-th column is referred to by backslash n.
  2. Differing positions may be used to generate residue annotations.