Note: Backbone oxygen evaluation OK

All residues for which the local backbone conformation could be found in the WHAT IF database have a normal backbone oxygen position.

Warning: Unusual backbone conformations

For the residues listed in the table below, the backbone formed by itself and two neighboring residues on either side is in a conformation that is not seen very often in the database of solved protein structures. The number given in the table is the number of similar backbone conformations in the database with the same amino acid in the center.

For this check, backbone conformations are compared with database structures using C-alpha superpositions with some restraints on the backbone oxygen positions.

A residue mentioned in the table can be part of a strange loop, or there might be something wrong with it or its directly surrounding residues. There are a few of these in every protein, but in any case it is worth looking at!

  29 ILE  (  29 )    1
 103 MET  ( 106 )    1
  11 GLU  (  11 )    2

Note: Backbone conformation Z-score OK

The backbone conformation analysis gives a score that is normal for well refined protein structures.

Backbone conformation Z-score : 0.551