    New chain ID            Original chain ID

9i5v-pdb-bundle1.pdb:
           A                         I
           B                         1
           C                         0
           D                        11
           E                        12
           F                        13
           G                        14
           H                         2
           I                         4
           J                         5
           K                         6
           L                         7
           M                         8
           N                         9
           O                         A
           P                         B
           Q                         D
           R                         E
           S                         F
           T                         K
           U                         L
           V                         M
           W                         N
           X                         O
           Y                         P
           Z                         Q
           a                         R
           b                         S
           c                         T
           d                         U
           e                         V
           f                         W
           g                         X
           h                         Y
           i                         Z

9i5v-pdb-bundle2.pdb:
           A                         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                        15
           Q                        10
           R                         p
           S                         J
