Everything that can go wrong, will Everything that can go wrong, will go wrong, especially with things as go wrong, especially with things as complicated as protein structures.complicated as protein structures.
Why ?Why ?
Why does a sane (?) human being spend fourteen years to search for millions of errors in the PDB?
Because:Because:
Everything we know about proteins comes from PDB files.
If a template is wrong the model will be wrong.
Errors become less dangerous when you know about them.