    New chain ID            Original chain ID

8k22-pdb-bundle1.pdb:
           B                         B
           C                         C
           D                         D
           E                         E
           G                         G
           H                         H
           I                         I
           J                         J
           K                         K
           L                         L
           M                         M
           P                         P
           Q                         Q
           R                         R
           a                         a
           d                         d
           e                         e
           A                         A
           U                         U
           V                         V
