    New chain ID            Original chain ID

7pzy-pdb-bundle1.pdb:
           A                         1
           B                         3
           C                         4
           D                        10
           E                         j
           F                         k
           G                         l
           H                         m
           I                         n
           J                         o
           K                         p
           L                         q
           M                         r
           N                         s
           O                         t
           P                         u

7pzy-pdb-bundle2.pdb:
           A                         v
           B                         w
           C                         x
           D                         y
           E                         z
           F                         0
           G                         2
           H                         5
           I                         6
           J                         7
           K                         8
           L                         9
           M                        AA
           N                        AB
           O                        AC
           P                        AD
           Q                        AE
           R                        AF
           S                        AG
           T                        AH
           U                        AI
           V                        AJ
           W                        AK
           X                        AL
           Y                        AM
           Z                        AN
           a                        AO
           b                        AP
           c                        AQ
           d                         i
           e                         A
           f                         B
           g                         C
           h                         D
           i                         E
           j                         F
           k                         G
           l                         H
           m                         I
           n                         J
           o                         K
           p                         L
           q                         M
           r                         N
           s                         O
           t                         P
           u                         Q
           v                         R
           w                         S
           x                         T
           y                         U
           z                         V
           0                         W
           1                         X
           2                         Y
           3                         Z
           4                         a
           5                         b
           6                         c
           7                         d
           8                         e
           9                         f

7pzy-pdb-bundle3.pdb:
           g                         g
           h                         h
