Data items in the DATABASE_PDB_CAVEAT category record details
               about features of the data block flagged as 'caveats' by the
               Protein Data Bank (PDB).
               These data items are included only for consistency with PDB
               format files. They should appear in a data block only if that
               data block was created by reformatting a PDB format file.
 
    loop_
    _database_PDB_caveat.id
    _database_PDB_caveat.text
    1
    ; THE CRYSTAL TRANSFORMATION IS IN ERROR BUT IS
    ;
    2
    ; UNCORRECTABLE AT THIS TIME
    ;