    New chain ID            Original chain ID

9mr4-pdb-bundle1.pdb:
           m                         m
           0                         0
           4                         4
           6                         6
           7                         7
           9                         9
           A                         A
           B                         B
           C                         C
           D                         D
           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
           c                         c
           d                         d
           e                         e
           f                         f
           g                         g
           h                         h
           i                         i
           j                         j
           k                         k
           l                         l
           n                         n
           o                         o
           p                         p
           q                         q
           r                         r
           u                         u
           v                         v
           w                         w

9mr4-pdb-bundle2.pdb:
           A                         x
           B                         z
           C                         2
           D                         5
           E                         8
           F                         E
           G                         b
           H                         y
           I                        BB
           J                        CC
           K                        DD
           L                        SS
           M                        EE
           N                        RR
           O                        QQ
           P                        MM
           Q                        WW
           R                        UU

9mr4-pdb-bundle3.pdb:
           A                        KK
           B                        II
           C                        PP
           D                        GG
           E                        HH
           F                        TT
           G                        VV
           H                        NN
           I                        OO
           J                        LL
           K                        JJ
           L                        FF
           M                        AA
           N                        EF
           O                        EG
           P                        EH
