    New chain ID            Original chain ID

6g2i-pdb-bundle1.pdb:
           D                         D
           E                         E
           C                         C

6g2i-pdb-bundle2.pdb:
           F                         F
           B                         B
           A                         A

6g2i-pdb-bundle3.pdb:
           G                         G
           Q                         Q
           J                         J
           R                         R
           H                         H
           K                         K
           M                         M
           O                         O
           S                         S
           U                         U
           Y                         Y
           W                         W
