    New chain ID            Original chain ID

5iv7-pdb-bundle1.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                         P
           Q                         Q
           R                         R
           S                         S
           T                         T
           U                         U
           V                         V
           W                         W
           X                         X
           Y                         Y
           Z                         Z
           a                         a
           b                         b
           c                         c

5iv7-pdb-bundle2.pdb:
           A                         d
           B                         e
           C                         f
           D                         g
           E                         h
           F                         i
           G                         j
           H                         k
           I                         l
           J                         m
           K                         n
           L                         o
           M                         p
           N                         q
           O                         r
           P                         s
           Q                         t
           R                         u
           S                         v
           T                         w
           U                         x
           V                         y
           W                         z
           X                        AA
           Y                        AB
           Z                        AC
           a                        AD
           b                        AE
           c                        AF

5iv7-pdb-bundle3.pdb:
           A                        AG
           B                        BA
           C                        BB
           D                        BC
           E                        BD
           F                        BE
           G                        BF
           H                        BG
           I                        CA
           J                        CB
           K                        CC
           L                        CD
           M                        CE
           N                        CF
           O                        CG
           P                        DA
           Q                        DB
           R                        DC
           S                        DD
           T                        DE
           U                        DF
           V                        DG
           W                        EA
           X                        EB
           Y                        EC
           Z                        ED
           a                        EE
           b                        EF
           c                        EG
           d                        FA
           e                        FB

5iv7-pdb-bundle4.pdb:
           A                        FC
           B                        FD
           C                        FE
           D                        FF
           E                        FG
           F                        GA
           G                        GB
