    New chain ID            Original chain ID

8sw3-pdb-bundle1.pdb:
           A                         A
           G                         G
           I                         I
           B                         B
           H                         H
           L                         L
           C                         C
           J                         J
           O                         O
           E                         E
           M                         M
           Q                         Q
           D                         D
           K                         K
           P                         P
           F                         F
           N                         N
           R                         R
           S                         S
           T                         T
           U                         U
           V                         V
           W                         W
           X                         X
