    New chain ID            Original chain ID

9h55_1-pdb-bundle1.pdb:
           A                         B
           B                         C
           C                         D
           D                         E
           E                         F
           F                         G
           G                         H
           H                         I
           I                         J
           J                         K
           K                         L
           L                         M
           M                         N
           N                         O
           O                         P
           P                         Q
           Q                         R
           R                         S
           S                         T
           T                         U
           U                         V
           V                         W
           W                         X
           X                         Y
           Y                         Z
           Z                         0
           a                         1
           b                         4
           c                         9
           d                         5
9h55_1-pdb-bundle2.pdb:
           A                         5
           B                         a
